Miniature Bearings Australia
6903-ZZ - 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 minimal axial load in one direction. An expanded range may be available on special order. Please enquire.
- Standard single row radial ball bearings.
Product Data
Double shielded standard bearing
- ID (d)
:
17.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.669 in.) - O.D. (D)
30.000
mm
+ 0.000 / - 0.010
(Equiv. 1.181 in.) - Width (B)
7.000
mm
+ 0.000 / - 0.125
(Equiv. 0.276 in.) - Precision Grade Abec 1
- Closure Type ZZ
- Bearing Type Radial
- Material Chrome Steel SAE 52100
- Lubrication Type Grease
- Lubrication Name Standard Unspecified
- Basic Part 6903
- Limiting Speed 23000
- Cage Type Standard
- Static Load Rating KGf 262
- Dynamic Load Rating KGf 468
- Radii 0.30 mm
- Inner Shoulder (UI) 21.00mm
- Outer Shoulder (UO) 27.80 mm
- Number of Balls 11
- Clearance CN (3 to 18)
- Precision Grade Abec 1
- Closure Type ZZ
- 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
- Gearbox Parts
- RC Car Parts
- RC Nitro Engine Parts
- Ondrives® - P30-60 - Output Shaft Bearings
- Rino® - P30-60 - Output Shaft Bearings
- HPI - Baja 5B - Bearing
- ASP® - 61 All Models - Bearing
- ASP® - 75 All Models - Bearing
- Chapman® - DC - 28 - Bearing
- Enya® - X 2Cand3 - 240 - Bearing
- Fitzpatrick - 61 With Side Exhaust and ABC Engine - Bearing
- Fox® - 36 All Models - Bearing
- Fox® - Eagle IV - 46 - Bearing
- HP - Gold Cup F - 21 - Bearing
- Irvine® - 15 All Models - Bearing
- Irvine® - 40 All Models - Bearing
- Irvine® - Old - 53 - Bearing
- Jett® - Fan Jet - 25 - Bearing
- Jett® - Fan Jet - 40 - Bearing
- Jett® - Fire - 40 - Bearing
- Jett® - Fire - 50 - Bearing
- Jett® - Fire - 95 - Bearing
- Jett® - Heli - 90 - Bearing
- Jett® - Sport - 105 - Bearing
- Jett® - Sport - 12 - Bearing
- Jett® - Sport - 40 - Bearing
- K.B - 7.5 All Models - Bearing
- K.B - 8702 - 21 - Bearing
- K.B - DF - 82 - Bearing
- K.B - OB New - 7.5 - Bearing
- K.B - Outboard Late Model Marine - 3.5 - Bearing
- K.B - Outboard Marine - 40 - Bearing
- K.B - Outboard Marine Late Model - 90 - Bearing
- K.B - Pro - 67 - Bearing
- K.B - SS Marine - 7.5 .45CC - Bearing
- K.B - Violet - 0.15 - Bearing
- K.B - Violet - 3.5 - Bearing
- K.B - Violet - 7.5 - Bearing
- K.B - Violet - 72 - Bearing
- Magnum Power® - XL - 52 - Bearing
- Magnum Power® - XL - 53 - Bearing
- MDS - 60 - Bearing
- Moki® - All - 61 - Bearing
- Nelson - 45 - 12 - Bearing
- Nelson - 45 All Models - Bearing
- Nelson - 65 All Models - Bearing
- Nelson - Quickie - 75 - Bearing
- OS Engines® - FSR ABC - 61 - Bearing
- OS Engines® - FSR Gold Head - 45 - Bearing
- OS Engines® - FSR RC Special - 90 - Bearing
- OS Engines® - FSR Ring ED - 108 - Bearing
- OS Engines® - RF ABC RC - 40 - Bearing
- OS Engines® - RF-H Pump - 21 - Bearing
- OS Engines® - RF-H RC With 7H - 21 - Bearing
- OS Engines® - RF-P - 61 - Bearing
- OS Engines® - RF-P Ring Hanno Special - 61 - Bearing
- OS Engines® - SF ABC RC W-Muffler - 61 - Bearing
- OS Engines® - SF-HP RC - 46 - Bearing
- OS Engines® - SF-P RC/Pump - 46 - Bearing
- OS Engines® - VF-H ABC - 25 - Bearing
- OS Engines® - VF-H RC With 7H - 25 - Bearing
- Picco® - 40 All Models - Bearing
- Rossi® - 3 and 2 - 3.5 - Bearing
- Rossi® - 45 All Models - Bearing
- Rossi® - 53 Glow Engine - 60 - Bearing
- Rossi® - Air - 53 - Bearing
- Rossi® - F1 RC - 21 C - Bearing
- Rossi® - R40T - 21 - Bearing
- Rossi® - RE - 90 - Bearing
- Saito® - 4C New - 45 - Bearing
- Saito® - 82 All Models - Bearing
- Saito® - FA 100 - Bearing
- Saito® - FA 150 - Bearing
- Saito® - FA 80 - Bearing
- Saito® - FA182TD - 100 - Replacement Rear Bearing
- Saito® - Old - 30 - Bearing
- Tower® - 61 BB ABC - 46 - Bearing
- Tower® - 75 BB ABC - 15 - Bearing
- Webra® - 28 All Models - Bearing
- Webra® - Heli - 80 - Bearing
- Webra® - Speed 61/P5 - 40 - Bearing
- Webra® - Speed P5 - 40 - Bearing
- YS - 2-C - 24.7 - Bearing
- YS - 4-C - 24.7 - Bearing
- YS - 91 All Models - Bearing
Cross References
- 5972K167
- WIB 61903-2Z
- WIB 61903-Z
- Shielded 6903 / 7
- Nachi® 6903-ZZECM
- ADR AY17-ZZ
- 61903Z
- 619032Z
- 6903ZZ
- 6903ZZECM
- AY17ZZ
- 6903 Basic Size Ref
