Stieber Clutch Self-Contained Freewheels GFR F2F3 & GFR F3F4

Types GFR F2F3/F3F4 are roller-type freewheels, self-contained, sealed, and bearing-supported, using two 160-series bearings.

They use the GFR base module. Units must be oil lubricated before use if they are delivered disassembled and, in any case, for the F3F4 combination. These cover combinations are primarily used as backstops, as shown overleaf. The F3 cover is a torque arm and has an integrated stop bolt. The stop bolt should go into a slot in a fixed part of the machine. The stop bolt must have a radial clearance of 1–3 % of the bolt‘s diameter. The torque arm and bearings must not be prestressed in any way. F2 and F4 covers are used to close the unit. They have three screws for oil filling, drain, and level.

If using cover type F4, the shaft end plate and its screw must be sealed to avoid oil leakage through the keyway. Covers are easily fitted, allowing on-site rotation direction selection if requested; units can be delivered assembled and lubricated for the F2F3 combination.

Check the Self-Contained Freewheels GFR F2F3 & GFR F3F4 Catalog to select the best model for your application.

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