Easy ID Description
0510 Inside diameter, Outside diameter
BB Ball Bearing
F Flanged
P Premium ABEC Rated bearing, Grade 5
C Ceramic
RS Rubber Sheilded
What are the ABEC levels?

The ABEC rating system includes grades 1,3,5,7, and 9. The higher the ABEC rating, the tighter the tolerances are, making the bearing a more precision part. High precision and small tolerances are required for bearings to function at very high RPM, in products like high speed routers that must spin at 20 to 30,000 RPM.