All Bearings and Belts Products / R-Series Bearings
R-Series Bearings — R-series bearings are inch-dimension radial ball bearings (R8, R12, and related), not metric 6200-series numbers.
Product listings are below. Questions sit under the listings so you can shop first.
R-series bearings are inch-dimension radial ball bearings (R8, R12, and related), not metric 6200-series numbers.
What is a R12 bearing?
An R12 is an inch-series radial ball bearing. Confirm bore, outside diameter, and width from the listing — do not treat R12 as a 6200-series metric part. USA Bearings groups R-series sizes on this hub.
What is an R8 bearing?
An R8 is a smaller inch-series radial bearing in the same R family. Match the three dimensions on the old bearing or the stamped R number, then pick the listing below.
What does 2RS mean on a ball bearing?
2RS means two rubber contact seals. ZZ (or 2Z) means two metal shields. Seals keep more contamination out and add a little drag; shields run freer and shed less grease. Pick the same closure the machine was designed for unless you are changing the environment on purpose.
