Miniature Bearings Australia - MBA Minibearings

Miniature Bearings Australia

R4-12B-ZZ-MC3 - 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) : 6.350 mm _{+ 0.000 / - 0.0075}
(Equiv. 0.25 in.)
OD (D) 19.050 mm _{+ 0.000 / - 0.010}
(Equiv. 0.75 in.)
Width (B) 7.142 mm _{+ 0.000 / - 0.125}
(Equiv. 0.281 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 R4-12B
Limiting Speed 36000
Cage Type Ribbon
Static Load Rating KGf 91
Dynamic Load Rating KGf 238
Radii 0.40 mm
Inner Shoulder (UI) 8.50mm
Outer Shoulder (UO) 16.50 mm
Number of Balls 6
Clearance MC3 (5 to 10)
Precision Grade Abec 1
Closure Type ZZ
Max Temperature 120 Deg. C

Country of Origin: JP

Product Compliance and Data

Additional Resources

Applications & Uses

RC Nitro Engine Parts
Enya - 35 - Front Bearing
Enya - 35 Heli - Front Bearing
Enya - 35X Heli ABC - 60 - Bearing 6.35-19.05-7.14mm
Enya - 50 All Models - Bearing 6.35-19.05-7.14mm
Enya - 53 All Models - Bearing 6.35-19.05-7.14mm

Cross References

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R4-12B-ZZ-MC3Diagram

R4-12B-ZZ-MC3Image