RBC Bearings Inc.
RBC Bearings Inc.
Address: One Tribology Center
Oxford, CT 06478
Phone: (203) 267-7001
Fax: (203) 267-5000
Email: AeroInfo@RBCbearings.com
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Inner Ring Only. Designed to support heavy unidirectional thrust and combination radial/thrust loads. Lube holes and grooves to facilitate relubrication.
IRB12SA-1_FB
Unit of Measure
1 

Item #

Inside Diameter

Outside Diameter

Width

IRB8SA N/A 0.50 in N/A 0.88 in N/A 0.300 in
IRB10SA N/A 0.63 in N/A 1.06 in N/A 0.370 in
IRB12SA N/A 0.75 in N/A 1.25 in N/A 0.440 in
IRB16SA N/A 1.00 in N/A 1.63 in N/A 0.600 in
IRB20SA N/A 1.25 in N/A 2.00 in N/A 0.740 in
IRB22SA N/A 1.38 in N/A 2.19 in N/A 0.840 in
IRB24SA18 N/A 1.50 in N/A 2.44 in N/A 0.910 in
IRB28SA12 N/A 1.75 in N/A 2.81 in N/A 1.070 in
IRB32SA12 N/A 2.00 in N/A 3.19 in N/A 1.230 in
IRB36SA N/A 2.25 in N/A 3.56 in N/A 1.390 in
IRB40SA N/A 2.50 in N/A 3.94 in N/A 1.540 in
IRB14SA N/A 0.88 in N/A 1.26 in N/A 0.480 in
IRB44SA N/A 2.75 in N/A 3.95 in N/A 1.560 in
IRB48SA N/A 3.00 in N/A 4.31 in N/A 1.710 in
IRB52SA N/A 3.25 in N/A 4.68 in N/A 1.860 in
IRB56SA N/A 3.50 in N/A 5.04 in N/A 2 in
IRB60SA N/A 3.75 in N/A 5.39 in N/A 2.150 in
IRB64SA N/A 4.00 in N/A 5.75 in N/A 2.300 in
IRB72SA N/A 4.50 in N/A 6.48 in N/A 2.590 in
IRB80SA N/A 5.00 in N/A 7.19 in N/A 2.880 in
IRB96SA N/A 6.00 in N/A 8.16 in N/A 3.100 in
Unit of Measure
1