Miniature Bearings Australia

6903-ZZ - Datasheet

MBA

Category Information

Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel

Chrome 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) : 17.000 mm _{+ 0.000 / - 0.0075}
(Equiv. 0.669 in.)
OD (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

Country of Origin: JP

Product Compliance and Data

Additional Resources

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 17-30-7mm
ASP - 61 All Models - Bearing 17-30-7mm
ASP - 75 All Models - Bearing 17-30-7mm
Chapman - DC - 28 - Bearing 17-30-7mm
Enya - X 2Cand3 - 240 - Bearing 17-30-7mm
Fitzpatrick - 61 With Side Exhaust and ABC Engine - Bearing 17-30-7mm
Fox - 36 All Models - Bearing 17-30-7mm
Fox - Eagle IV - 46 - Bearing 17-30-7mm
HP - Gold Cup F - 21 - Bearing 17-30-7mm
Irvine - 15 All Models - Bearing 17-30-7mm
Irvine - 40 All Models - Bearing 17-30-7mm
Irvine - Old - 53 - Bearing 17-30-7mm
Jett - Fan Jet - 25 - Bearing 17-30-7mm
Jett - Fan Jet - 40 - Bearing 17-30-7mm
Jett - Fire - 40 - Bearing 17-30-7mm
Jett - Fire - 50 - Bearing 17-30-7mm
Jett - Fire - 95 - Bearing 17-30-7mm
Jett - Heli - 90 - Bearing 17-30-7mm
Jett - Sport - 105 - Bearing 17-30-7mm
Jett - Sport - 12 - Bearing 17-30-7mm
Jett - Sport - 40 - Bearing 17-30-7mm
K.B - 7.5 All Models - Bearing 17-30-7mm
K.B - 8702 - 21 - Bearing 17-30-7mm
K.B - DF - 82 - Bearing 17-30-7mm
K.B - OB New - 7.5 - Bearing 17-30-7mm
K.B - Outboard Late Model Marine - 3.5 - Bearing 17-30-7mm
K.B - Outboard Marine - 40 - Bearing 17-30-7mm
K.B - Outboard Marine Late Model - 90 - Bearing 17-30-7mm
K.B - Pro - 67 - Bearing 17-30-7mm
K.B - SS Marine - 7.5 .45CC - Bearing 17-30-7mm
K.B - Violet - 0.15 - Bearing 17-30-7mm
K.B - Violet - 3.5 - Bearing 17-30-7mm
K.B - Violet - 7.5 - Bearing 17-30-7mm
K.B - Violet - 72 - Bearing 17-30-7mm
Magnum Power - XL - 52 - Bearing 17-30-7mm
Magnum Power - XL - 53 - Bearing 17-30-7mm
MDS - 60 - Bearing 17-30-7mm
Moki - All - 61 - Bearing 17-30-7mm
Nelson - 45 - 12 - Bearing 17-30-7mm
Nelson - 45 All Models - Bearing 17-30-7mm
Nelson - 65 All Models - Bearing 17-30-7mm
Nelson - Quickie - 75 - Bearing 17-30-7mm
OS - FSR ABC - 61 - Bearing 17-30-7mm
OS - FSR Gold Head - 45 - Bearing 17-30-7mm
OS - FSR RC Special - 90 - Bearing 17-30-7mm
OS - FSR Ring ED - 108 - Bearing 17-30-7mm
OS - RF ABC RC - 40 - Bearing 17-30-7mm
OS - RF-H Pump - 21 - Bearing 17-30-7mm
OS - RF-H RC With 7H - 21 - Bearing 17-30-7mm
OS - RF-P - 61 - Bearing 17-30-7mm
OS - RF-P Ring Hanno Special - 61 - Bearing 17-30-7mm
OS - SF ABC RC W-Muffler - 61 - Bearing 17-30-7mm
OS - SF-HP RC - 46 - Bearing 17-30-7mm
OS - SF-P RC/Pump - 46 - Bearing 17-30-7mm
OS - VF-H ABC - 25 - Bearing 17-30-7mm
OS - VF-H RC With 7H - 25 - Bearing 17-30-7mm
Picco - 40 All Models - Bearing 17-30-7mm
Rossi - 3 and 2 - 3.5 - Bearing 17-30-7mm
Rossi - 45 All Models - Bearing 17-30-7mm
Rossi - 53 Glow Engine - 60 - Bearing 17-30-7mm
Rossi - Air - 53 - Bearing 17-30-7mm
Rossi - F1 RC - 21 C - Bearing 17-30-7mm
Rossi - R40T - 21 - Bearing 17-30-7mm
Rossi - RE - 90 - Bearing 17-30-7mm
Saito - 4C New - 45 - Bearing 17-30-7mm
Saito - 82 All Models - Bearing 17-30-7mm
Saito - FA 100 - Bearing 17-30-7mm
Saito - FA 150 - Bearing 17-30-7mm
Saito - FA 80 - Bearing 17-30-7mm
Saito - FA182TD - 100 - Rear Bearing 17-30-7mm
Saito - Old - 30 - Bearing 17-30-7mm
Tower - 61 BB ABC - 46 - Bearing 17-30-7mm
Tower - 75 BB ABC - 15 - Bearing 17-30-7mm
Webra - 28 All Models - Bearing 17-30-7mm
Webra - Heli - 80 - Bearing 17-30-7mm
Webra - Speed 61/P5 - 40 - Bearing 17-30-7mm
Webra - Speed P5 - 40 - Bearing 17-30-7mm
YS - 2-C - 24.7 - Bearing 17-30-7mm
YS - 4-C - 24.7 - Bearing 17-30-7mm
YS - 91 All Models - Bearing 17-30-7mm

Cross References

5972K167
WIB 61903-2Z
WIB 61903-Z
Shielded 6903 / 7
Nachi 6903-ZZECM
ADR AY17-ZZ
AY17ZZ
6903ZZ
6903ZZECM
619032Z
61903Z
6903 Basic Size Ref

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