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Centrifugally Lift-Off Sprags Freewheels RIZG2G3 and RIZG3G4 Types
Types RIZ..G2G3/G3G4 are centrifugal lift off sprag type freewheels with the inner race rotating. Only the inner race is designed for freewheeling.
They are self-contained units designed for backstop applications. The overrunning speed must not be less than the minimum specified in the table. This must be considered if using a variable speed drive. The torque bolt must be fitted into a slot on a fixed part of the machine. The radial clearance should be 1–3 % of the bolt diameter. The torque arm and bearings must not be axially loaded.
They are a type RIZ, (» see page RIZ) equipped with G type covers featuring grease pockets and contact free seals. When ordered complete, the unit is delivered grease lubricated, ready for either horizontal or vertical installation.,