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 / - 0.0075
(Equiv. 0.157 in.) |
OD (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
![]() |
|||
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: MR84-MC3-AF12 (50 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025 Regular price
$268.59 AUD
Regular price
Unit price
/
per
Per 50
|
||||||
ID (d) | OD (D) | Width (B) | Inner Ring Width (Bn) |
Indicative Image |
||
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)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
![]() |
|||
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: MR84-MC3-AF12 (50 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025 Regular price
$268.59 AUD
Regular price
Unit price
/
per
Per 50
|
||||||
|
||||||
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)
2.000
mm + 0.000 / - 0.120 (Equiv. 0.079 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: P6
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84-MC3-JP6-AF12 (100 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025 Regular price
$395.41 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
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)
2.000
mm + 0.000 / - 0.120 (Equiv. 0.079 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: P6
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84-MC3-JP6-AF12 (100 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025 Regular price
$395.41 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
|
||||||
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)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84-MC3-AF12
Single Row Ball Bearings - 4x8x2 mm Unflanged - Stainless Steel AISI 440C Bearing 216 Available Now | Further orders can be expected around Fri, Oct 03, 2025 Regular price
$4.77 AUD
Regular price
Unit price
/
per
Each
|
||||||
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)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84-MC3-AF12
Single Row Ball Bearings - 4x8x2 mm Unflanged - Stainless Steel AISI 440C Bearing 216 Available Now | Further orders can be expected around Fri, Oct 03, 2025 Regular price
$4.77 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.005
(Equiv. 0.157 in.) |
OD (D)
8.000
mm + 0.000 / - 0.005 (Equiv. 0.315 in.) |
Width (B)
2.000
mm + 0.000 / - 0.040 (Equiv. 0.079 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged - High Precision |
||||||
Part Number: SMR84-MC4-GR5-AF12 (100 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock | Backorder Now | Orders can be expected around Sat, Nov 22, 2025 Regular price
$1,083.59 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.005 (Equiv. 0.157 in.) |
OD (D)
8.000
mm + 0.000 / - 0.005 (Equiv. 0.315 in.) |
Width (B)
2.000
mm + 0.000 / - 0.040 (Equiv. 0.079 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged - High Precision |
||||||
Part Number: SMR84-MC4-GR5-AF12 (100 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock | Backorder Now | Orders can be expected around Sat, Nov 22, 2025 Regular price
$1,083.59 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
|
||||||
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)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
![]() |
|||
Material: Ceramic Silicon Nitride - PTFE Cage
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: CSN-MR84-TF-DRY (100 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Ceramic Silicon Nitride - PTFE Cage Bearing Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 27, 2025 Regular price
$2,749.23 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
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)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
![]() |
|||
Material: Ceramic Silicon Nitride - PTFE Cage
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: CSN-MR84-TF-DRY (100 Pcs)
Single Row Ball Bearings - 4x8x2 mm Unflanged - Ceramic Silicon Nitride - PTFE Cage Bearing Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 27, 2025 Regular price
$2,749.23 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: MR84A-ZZS-ECO (5 Pcs)
Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 27, 2025 Regular price
$4.68 AUD
Regular price
Unit price
/
per
Per 5
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: MR84A-ZZS-ECO (5 Pcs)
Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 27, 2025 Regular price
$4.68 AUD
Regular price
Unit price
/
per
Per 5
|
||||||
|
||||||
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: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84A-ZZ-MC3
Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing 129 Available Now | Further orders can be expected around Sat, Sep 27, 2025 Regular price
$6.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
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: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84A-ZZ-MC3
Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing 129 Available Now | Further orders can be expected around Sat, Sep 27, 2025 Regular price
$6.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$268.86 AUD
Regular price
Unit price
/
per
Per 50
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$268.86 AUD
Regular price
Unit price
/
per
Per 50
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Tue, Jan 27, 2026 Regular price
$419.41 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Tue, Jan 27, 2026 Regular price
$419.41 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: MR84A-ZZ-MC3
Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 253 Available Now | Further orders can be expected around Fri, Oct 03, 2025 Regular price
$4.32 AUD
Regular price
Unit price
/
per
Each
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: MR84A-ZZ-MC3
Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 253 Available Now | Further orders can be expected around Fri, Oct 03, 2025 Regular price
$4.32 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Sat, Sep 27, 2025 Regular price
$4.05 AUD
Regular price
Unit price
/
per
Each
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Sat, Sep 27, 2025 Regular price
$4.05 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$840.68 AUD
Regular price
Unit price
/
per
Per 200
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$840.68 AUD
Regular price
Unit price
/
per
Per 200
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84A-MC3-JP6-AF12
Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock | Backorder Now | More stock due: 50 around Thu, Sep 18, 2025 | Further orders can be expected around Tue, Nov 18, 2025 Regular price
$8.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: SMR84A-MC3-JP6-AF12
Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock | Backorder Now | More stock due: 50 around Thu, Sep 18, 2025 | Further orders can be expected around Tue, Nov 18, 2025 Regular price
$8.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$838.77 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$838.77 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
|
||||||
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.) |
Flange Diameter (DF)
9.200
|
Flange Width (BF)
0.600
|
![]() |
|
Material: Stainless Steel AISI 440C - Ceramic Si3N4 Balls
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged - Precision |
||||||
Part Number: SFMR84A-CSN-ZZS-ACO-ECO
Single Row Ball Bearings - 4x8x3 mm Flanged - Stainless Steel AISI 440C - Ceramic Si3N4 Balls Bearing 1 Available Now | Further orders can be expected around Sat, Oct 11, 2025 Regular price
$17.59 AUD
Regular price
Unit price
/
per
Each
|
||||||
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: Stainless Steel AISI 440C - Ceramic Si3N4 Balls
Flange Diameter (DF): 9.200
Flange Width (BF): 0.600
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged - Precision |
||||||
Part Number: SFMR84A-CSN-ZZS-ACO-ECO
Single Row Ball Bearings - 4x8x3 mm Flanged - Stainless Steel AISI 440C - Ceramic Si3N4 Balls Bearing 1 Available Now | Further orders can be expected around Sat, Oct 11, 2025 Regular price
$17.59 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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
Unit price
/
per
Each
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
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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
Unit price
/
per
Each
|
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|
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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.) |
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Material: Chrome Steel SAE 52100
Precision Grade: Economy
Category: Bearings - Single Row Ball - Unflanged - Precision |
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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 Sat, Sep 27, 2025 Regular price
$2.14 AUD
Regular price
Unit price
/
per
Each
|
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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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Sat, Sep 27, 2025 Regular price
$2.14 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
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Part Number: 684-MC3-AF12
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 1 Available Now | More stock due: 100 around Mon, Oct 06, 2025 | Further orders can be expected around Fri, Oct 03, 2025 Regular price
$4.41 AUD
Regular price
Unit price
/
per
Each
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: 684-MC3-AF12
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 1 Available Now | More stock due: 100 around Mon, Oct 06, 2025 | Further orders can be expected around Fri, Oct 03, 2025 Regular price
$4.41 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.004
(Equiv. 0.157 in.) |
OD (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 7
Category: Bearings - Single Row Ball - Unflanged - High Precision |
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Part Number: S684-MC34-GR7-R-L23 (68 Pcs)
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing Out of Stock | Backorder Now | Orders can be expected around Sun, Oct 26, 2025 Regular price
$2,550.95 AUD
Regular price
Unit price
/
per
Per 68
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.004 (Equiv. 0.157 in.) |
OD (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 7
Category: Bearings - Single Row Ball - Unflanged - High Precision |
||||||
Part Number: S684-MC34-GR7-R-L23 (68 Pcs)
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing Out of Stock | Backorder Now | Orders can be expected around Sun, Oct 26, 2025 Regular price
$2,550.95 AUD
Regular price
Unit price
/
per
Per 68
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$352.14 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$352.14 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$724.59 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
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 Fri, Oct 03, 2025 Regular price
$724.59 AUD
Regular price
Unit price
/
per
Per 100
|
||||||
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: S684-MC3-R-AF12
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 469 Available Now | Further orders can be expected around Sat, Sep 27, 2025 Regular price
$8.95 AUD
Regular price
Unit price
/
per
Each
|
||||||
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
Category: Bearings - Single Row Ball - Unflanged - Precision |
||||||
Part Number: S684-MC3-R-AF12
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 469 Available Now | Further orders can be expected around Sat, Sep 27, 2025 Regular price
$8.95 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.005
(Equiv. 0.157 in.) |
OD (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged - High Precision |
||||||
Part Number: S684-MC34-GR5-L23 (40 Pcs)
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing Out of Stock | Backorder Now | Orders can be expected around Sun, Oct 26, 2025 Regular price
$1,056.86 AUD
Regular price
Unit price
/
per
Per 40
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.005 (Equiv. 0.157 in.) |
OD (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged - High Precision |
||||||
Part Number: S684-MC34-GR5-L23 (40 Pcs)
Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing Out of Stock | Backorder Now | Orders can be expected around Sun, Oct 26, 2025 Regular price
$1,056.86 AUD
Regular price
Unit price
/
per
Per 40
|
||||||
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.005
(Equiv. 0.157 in.) |
OD (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged - High Precision |
||||||
Part Number: S684-MC4-GR5-R-AF12 (1000 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, Jan 03, 2026 Regular price
$8,620.50 AUD
Regular price
Unit price
/
per
Per 1000
|
||||||
ID (d)
4.000
mm + 0.000 / - 0.005 (Equiv. 0.157 in.) |
OD (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
![]() |
|||
Material: Stainless Steel AISI 440C
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged - High Precision |
||||||
Part Number: S684-MC4-GR5-R-AF12 (1000 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, Jan 03, 2026 Regular price
$8,620.50 AUD
Regular price
Unit price
/
per
Per 1000
|
||||||
|