Standard Needle One Way Clutch Bearings

The FC, FCB, HF, and HFL, RC, RCB Standard One Way Clutch Bearing Series consists of a drawn cup roller clutch with single or multi-rollers. A drawn cup needle roller clutch has a small radial section height and is also commonly known as a One Way Bearing or Anti-Reverse Bearing. One Way Bearings are designed to transmit torque between the shaft and housing in one direction and allow free motion in the opposite direction.

The FC, HF, and RC style one way bearings consists of a drawn cup roller clutch and bearing assembly with single rollers. The FCB, HFL, and RCB style one way bearings typically a configured with multi-rollers and can thus handle higher loads. 

An ending designation or suffix in the part number of KF indicates plastic springs and no suffix indicates stainless steel springs. Suffix of R indicates a partially knurled outer ring.An ending designation or suffix in the part number of FS indicates stainless steel springs and no suffix typically indicates plastic springs.

You can find schematics of each style one way here: FC, FCB, HF, HFL, RC and RCB One Way Bearing series HERE.