Stieber Clutch Built-In Freewheels Type NFR

Type NFR is a bearing-supported roller-type freewheel without any sealing. Lubrication and sealing must be provided by the installation. Standard lubrication is oil.

Sizes 8 to 20 units use steel on steel bearing support from the inner race. Above size 25, two 160.. series ball bearings are used, giving a higher overrunning speed capacity. A typical arrangement is shown overleaf. The inner race is keyed to the shaft. The outer race has a positive n6* tolerance to give a press fit in housing to H7. Additional side notches provide for positive torque transmission. The housing must be strong enough to not expand after assembly.

Check the Clutch Built-In Freewheels Type NFR Catalog to select the best model for your application.

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