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Collection: Bearings - Single Row Ball - Unflanged - Precision

Bearings -> Single Row Ball -> Unflanged -> Precision

ID (d)	OD (D)	Width (B)	Inner Ring Width (Bn)	Flange Diameter (DF)	Flange Width (BF)	Indicative Image
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-AF12 Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing 59 Available Now \| Further orders can be expected around Wed, Jan 14, 2026 Regular price $5.50 AUD Regular price Sale price $5.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 59 Available Now. Backorder if more than 59.
ID (d)	OD (D)	Width (B)	Inner Ring Width (Bn)	Indicative Image
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-AF12 Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing 59 Available Now \| Further orders can be expected around Wed, Jan 14, 2026 Regular price $5.50 AUD Regular price Sale price $5.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 59 Available Now. Backorder if more than 59.
SMR84A-MC3-JP6-AF12 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing SMR84A-MC3-JP6-AF12 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $5.50 AUD Regular price Sale price $5.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 59 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $838.77 AUD Regular price Sale price $838.77 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $838.77 AUD Regular price Sale price $838.77 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
SMR84A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing SMR84A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $838.77 AUD Regular price Sale price $838.77 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - High Speed Cage
Part Number: MR84A-ZZ-T9H-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing 1 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 1 Available Now. Backorder if more than 1.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - High Speed Cage
Part Number: MR84A-ZZ-T9H-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing 1 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 1 Available Now. Backorder if more than 1.
MR84A-ZZ-T9H-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing MR84A-ZZ-T9H-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 1 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-L23 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Wed, Mar 25, 2026 Regular price $419.41 AUD Regular price ~~$503.29 AUD~~ Sale price $419.41 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-L23 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Wed, Mar 25, 2026 Regular price $419.41 AUD Regular price ~~$503.29 AUD~~ Sale price $419.41 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
SMR84A-MC3-JP6-L23 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Sale SMR84A-MC3-JP6-L23 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $419.41 AUD Regular price ~~$503.29 AUD~~ Sale price $419.41 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZ-MC3-JP6 (50 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $268.86 AUD Regular price ~~$322.64 AUD~~ Sale price $268.86 AUD Unit price per 50 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZ-MC3-JP6 (50 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $268.86 AUD Regular price ~~$322.64 AUD~~ Sale price $268.86 AUD Unit price per 50 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
MR84A-ZZ-MC3-JP6 (50 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Sale MR84A-ZZ-MC3-JP6 (50 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $268.86 AUD Regular price ~~$322.64 AUD~~ Sale price $268.86 AUD Unit price per 50 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Precision Grade: Abec 1 Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Ceramic Hybrid Ceramic Balls and shields
Part Number: MR84A-CSN-ZZS-ACO-ECO (200 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $840.68 AUD Regular price ~~$1,008.82 AUD~~ Sale price $840.68 AUD Unit price per 200 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Precision Grade: Abec 1 Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Ceramic Hybrid Ceramic Balls and shields
Part Number: MR84A-CSN-ZZS-ACO-ECO (200 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $840.68 AUD Regular price ~~$1,008.82 AUD~~ Sale price $840.68 AUD Unit price per 200 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
MR84A-CSN-ZZS-ACO-ECO (200 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Sale MR84A-CSN-ZZS-ACO-ECO (200 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Regular price $840.68 AUD Regular price ~~$1,008.82 AUD~~ Sale price $840.68 AUD Unit price per 200 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| More stock due: 38 (190 pcs) around Mon, Oct 27, 2025 \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $4.32 AUD Regular price Sale price $4.32 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| More stock due: 38 (190 pcs) around Mon, Oct 27, 2025 \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $4.32 AUD Regular price Sale price $4.32 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
MR84A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing MR84A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.32 AUD Regular price Sale price $4.32 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZ-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 242 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 242 Available Now. Backorder if more than 242.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZ-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 242 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 242 Available Now. Backorder if more than 242.
MR84A-ZZ-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing MR84A-ZZ-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 242 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 5.000 mm (Equiv. 0.197 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Deleted Item. Available while stocks last. Non ISO Width
Part Number: MR84D-ZZS-ECO Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing 16 Available Now \| Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 16 Available Now. These are priced to quit. Please contact us for a quote if you require more.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 5.000 mm (Equiv. 0.197 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Deleted Item. Available while stocks last. Non ISO Width
Part Number: MR84D-ZZS-ECO Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing 16 Available Now \| Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 16 Available Now. These are priced to quit. Please contact us for a quote if you require more.
MR84D-ZZS-ECO --- Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing Sale MR84D-ZZS-ECO --- Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 16 Available Now Sale
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 2.500 mm (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-ZZS-ECO Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 19 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $2.05 AUD Regular price Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 19 Available Now. Backorder if more than 19.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 2.500 mm (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-ZZS-ECO Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 19 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $2.05 AUD Regular price Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 19 Available Now. Backorder if more than 19.
684-ZZS-ECO --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 684-ZZS-ECO --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $2.05 AUD Regular price Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 19 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 101 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $4.23 AUD Regular price Sale price $4.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 101 Available Now. Backorder if more than 101.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 101 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $4.23 AUD Regular price Sale price $4.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 101 Available Now. Backorder if more than 101.
684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.23 AUD Regular price Sale price $4.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 101 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC2-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $352.14 AUD Regular price ~~$422.56 AUD~~ Sale price $352.14 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC2-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $352.14 AUD Regular price ~~$422.56 AUD~~ Sale price $352.14 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
S684-MC2-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Sale S684-MC2-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $352.14 AUD Regular price ~~$422.56 AUD~~ Sale price $352.14 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 13 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $3.59 AUD Regular price Sale price $3.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 13 Available Now. Backorder if more than 13.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 13 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $3.59 AUD Regular price Sale price $3.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 13 Available Now. Backorder if more than 13.
S684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $3.59 AUD Regular price Sale price $3.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 13 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.120} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-JP6-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $724.59 AUD Regular price Sale price $724.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.120} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-JP6-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $724.59 AUD Regular price Sale price $724.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
S684-MC3-JP6-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684-MC3-JP6-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $724.59 AUD Regular price Sale price $724.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-R-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 369 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $8.95 AUD Regular price Sale price $8.95 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 369 Available Now. Backorder if more than 369.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-R-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 369 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $8.95 AUD Regular price Sale price $8.95 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 369 Available Now. Backorder if more than 369.
S684-MC3-R-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684-MC3-R-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $8.95 AUD Regular price Sale price $8.95 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 369 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684D-ZZS-ECO Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 100 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $3.86 AUD Regular price Sale price $3.86 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 100 Available Now. Backorder if more than 100.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684D-ZZS-ECO Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 100 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $3.86 AUD Regular price Sale price $3.86 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 100 Available Now. Backorder if more than 100.
684D-ZZS-ECO --- Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 684D-ZZS-ECO --- Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $3.86 AUD Regular price Sale price $3.86 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 100 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Non ISO Width
Part Number: 684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 262 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 262 Available Now. Backorder if more than 262.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Non ISO Width
Part Number: 684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 262 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 262 Available Now. Backorder if more than 262.
684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 262 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Non ISO Width
Part Number: S684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing 97 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $5.14 AUD Regular price Sale price $5.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 97 Available Now. Backorder if more than 97.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Non ISO Width
Part Number: S684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing 97 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $5.14 AUD Regular price Sale price $5.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 97 Available Now. Backorder if more than 97.
S684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $5.14 AUD Regular price Sale price $5.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 97 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Deleted Item. Available while stocks last.
Part Number: 684A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 4 units (20 pcs) Available Now \| Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $3.49 AUD Regular price ~~$6.02 AUD~~ Sale price $3.49 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required 4 units (20 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Deleted Item. Available while stocks last.
Part Number: 684A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 4 units (20 pcs) Available Now \| Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $3.49 AUD Regular price ~~$6.02 AUD~~ Sale price $3.49 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required 4 units (20 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
684A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Sale 684A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $3.49 AUD Regular price ~~$6.02 AUD~~ Sale price $3.49 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties 4 Available Now Sale
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3 (2 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 264 units (528 pcs) Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $6.68 AUD Regular price Sale price $6.68 AUD Unit price per 2 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required 264 units (528 pcs) Available Now. Backorder if more than 264.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3 (2 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 264 units (528 pcs) Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $6.68 AUD Regular price Sale price $6.68 AUD Unit price per 2 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required 264 units (528 pcs) Available Now. Backorder if more than 264.
684A-ZZ-MC3 (2 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-ZZ-MC3 (2 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $6.68 AUD Regular price Sale price $6.68 AUD Unit price per 2 Per Sell Unit Excludes GST and overseas Taxes & Duties 264 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RB Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RB-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 750 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $2.05 AUD Regular price Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 750 Available Now. Backorder if more than 750.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RB Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RB-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 750 Available Now \| Further orders can be expected around Sun, Nov 23, 2025 Regular price $2.05 AUD Regular price Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 750 Available Now. Backorder if more than 750.
684A-2RB-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-2RB-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $2.05 AUD Regular price Sale price $2.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 750 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Tue, Dec 02, 2025 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Tue, Dec 02, 2025 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
684A-2RS-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-2RS-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $453.23 AUD Regular price ~~$543.87 AUD~~ Sale price $453.23 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Sat, Nov 29, 2025 Regular price $453.23 AUD Regular price ~~$543.87 AUD~~ Sale price $453.23 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
684A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Sale 684A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $453.23 AUD Regular price ~~$543.87 AUD~~ Sale price $453.23 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-MC3 Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 73 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $6.23 AUD Regular price Sale price $6.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 73 Available Now. Backorder if more than 73.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-MC3 Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 73 Available Now \| Further orders can be expected around Sat, Nov 29, 2025 Regular price $6.23 AUD Regular price Sale price $6.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 73 Available Now. Backorder if more than 73.
684A-2RS-MC3 --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-2RS-MC3 --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $6.23 AUD Regular price Sale price $6.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 73 Available Now

Miniature Bearings Australia Pty Ltd
3/8 Boyland Avenue
Coopers Plains, Queensland, Australia.
(ABN: 94 069 113 800)