One Way Bearing
HF------Drawn cup roller clutch with steel springs
HF-KF------Drawn cup roller clutch with plastic springs
HF-R------Drawn cup roller clutch with steel springs and partially knurled outer ring
HF-KFR-----Drawn cup roller clutch with plastic springs and partially knurled outer ring
HFL----Drawn cup roller clutch with bearing assemblies with steel springs, plain or rolling bearings
HFL-KFR-----Drawn cup roller clutch and bearing assemblies with plastic springs, partially knurled outer ring
HFL-R ----Drawn cup roller clutch and palin bearing assemblies with steel springs,partially knurled outer ring
HFL-KFR-----Drawn cup roller clutch and plain bearing assemblies with plastic springs, partially knurled outer ring
HFL-K -----Metabolic configuration