CZH Shell Type Roller Clutches, Series HF
Shell type roller clutches of series HF consist of a thinwalled drawn cup with ramps on the inside, a plastic cage with stainless steel springs and needle rollers. The ramp configuration is designed to minimize friction in the overrunning mode and backlash angle during engagement. The plastic cage ensures precise positioning and guiding of the needle rollers, which act as wedging elements.
The separate support needed to handle radial loads is best provided by placing CZH shell bearings on each side of by utilizing a shell type roller clutch with integrated bearing supports, series HFLZ. If a support is needed on only one side, it should be placed in the loaded area.
CZH Shell Type Roller Clutches, Series HFL
CZH shell type roller clutches series HFL have low integral support bearings. The support bearings are arranged on either side of the clutch unit and handle radial loads. The support bearings consist of needle rollers retained by plastic cages.
The same design features as described for series HFZ apply for the clutch portion.