R4A R series ball bearing drawings
  1. Also available in Stainless Steel, add prefix "S"
  2. ABEC Grades 1, 3, 5, 7, and 9 are available.

R4A R Series Ball Bearing

Model: R4A

Request Quote Quantity

Product Details

Bearing Type Open
Bore Dia (d) 0.2500 in
Outer Dia (D) 0.7500 in
Width (B) 0.2188 in
Radius (min) (rs) 0.016 in
Dynamic Load Rating (Cr) 525 lbs
Static Load Rating (Cor) 190 lbs
Max Speed (Grease) 36,000 rpm
Max Speed (Oil) 43,000 rpm
Max. Shaft Shoulder Dia. Inner (Li) 0.4 in
Min. Housing Shoulder Dia., Outer (Lo) 0.6 in
Ball Qty 6
Ball Dia (Dw) 0.1378 in
Weight (g) 7.48 grams
Precision A1
Standard Clearance K25
Material 52100 Chrome steel (or equivalent)

All information in this catalog has been thoroughly checked for accuracy. However, the catalog data should not be relied upon entirely for design and development purposes. AST Bearings assumes no liability for possible errors or omissions. All dimensions and specifications are subject to change without notice. Contact AST Bearings for the most current catalog data as it applies to you and for your application.