CSK20 Quality Freewheel sprag clutch one way bearing 20mmX47mmX14mm No Keyway
CSK17P Freewheel sprag clutch one way bearing 17mmX40mmX12mm internal keyway NEW. CSK17PP Freewheel sprag clutch one way bearing 17mmX40mmX12mm with two keyways. CSK25P Freewheel sprag clutch one way bearing 25mmX52mmX15mm internal keyway NEW.