Miniature Bearings Australia
6904 - Datasheet
MBA
Category Information
Bearings - Single Row Ball - Unflanged - Precision - Chrome SteelChrome Steel Precision Unflanged Single Row Ball Bearings. Chrome steel radial ball bearings.
- Single row radial ball bearings are arguably the most common, widely used type of bearing. They consist of an inner ring, an outer ring, a set of balls, and a cage that retains the balls in a circular path.
- Single row radial ball bearings are commonly used in a wide range of applications, including electric motors, fans, pumps, gearboxes, agricultural equipment, appliances, and automotive components.
- They are versatile, cost-effective bearings that provide reliable support for radial loads and some axial loads in one direction. An expanded range may be available on special order. Please enquire.
- Standard single row radial ball bearings.
Product Data
- ID (d)
:
20.000
mm
+ 0.000 / - 0.011
(Equiv. 0.787 in.) - OD (D)
37.000
mm
+ 0.000 / - 0.011
(Equiv. 1.457 in.) - Width (B)
9.000
mm
+ 0.000 / - 0.120
(Equiv. 0.354 in.) - Precision Grade Abec 1
- Closure Type Open
- Bearing Type Radial
- Material Chrome Steel SAE 52100
- Lubrication Type Grease
- Lubrication Name Standard Unspecified
- Basic Part 6904
- Limiting Speed 19000
- Cage Type Standard
- Static Load Rating KGf 376
- Dynamic Load Rating KGf 651
- Radii 0.30 mm
- Inner Shoulder (UI) 25.20mm
- Outer Shoulder (UO) 32.00 mm
- Number of Balls 11
- Clearance CN (5 to 20)
- Precision Grade Abec 1
- Closure Type Open
- Max Temperature 120 Deg. C
Product Compliance and Data
Additional Resources
- Catalogue: Ceramic Bearings Catalogue
- Catalogue: Plastic Bearings Catalogue
- Catalogue: Standard Bearings Catalogue
- General: Bearing Cleanliness
- General: Bearing Clearances
- General: Bearing Flanges & Snap Rings
- General: Bearing Retainers (Cages)
- General: General Loads Information
- General: Lubrication
- General: Prefix & Suffix Guide
- General: Static vs Dynamic Loads
- Materials: 316 Stainless
- Materials: CASSTOP Anti-Corrosion Bearing Material
- Materials: Ceramic vs Ceramic Hybrid
- Materials: Ceramic Bearings in Vibratory Applications
- Materials: Ceramic Hybrid Bearings in Vibratory Applications
- Materials: General Bearing Materials
- Materials: Magnetism & Bearings
- Precision: 316 Stainless & Plastic Bearing Tolerances
- Precision: ABEC Basic Information
- Precision: Precision Bearing Tolerances
- Problem Solving: Bearing Failure
- Problem Solving: Fatigue (L10 Life)
- Problem Solving: Noise
Applications & Uses
- RC Nitro Engine Parts
- OS - 108 FSR - 2 Stroke - Rear Bearing 20-37-9mm
- OS - RX140 - Rear Bearing 20-37-9mm
- Thunder Tiger - 120 Pro - 2 Stroke - Rear Bearing 20-37-9mm
Cross References
- 5972K245
- FAFNIR M9304K
- FAFNIR MM9304K
- 6904
- 6904 Basic Size Ref
