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FGR … R series

FGR … R series
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Basic Freewheels FGR … R for assembly with connecting parts with rollers Application as ➧ Backstop ➧ Overrunning Clutch ➧ Indexing Freewheel Features Basic Freewheels FGR … R are roller freewheels with ball bearings to be assembled with customer connecting parts. The freewheels are particularly suitable for installation in housings with oil lubrication and seals. Nominal torques up to 68 000 Nm. Bores up to 150 mm. Application example Basic Freewheel FGR 25 R as a backstop on a reduction gear in the drive of an inclined conveyor of an assembly train. When the unit stops, the conveyor belt must be held securely so that it does not run backwards by the weight of the assembly parts. A brake disk is fitted to the outer ring of the freewheel alongside a manually operated RINGSPANN brake calliper. The backdriving torque is maintained by the freewheel and the closed brake. During set-up it must be possible to move the installation in both directions of rotation. To do this, the brake calliper is opened manually.

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Size FGR 12 Standard type For universal use Basic Freewheels Freewheel Size ■ Freewheels with bore diameters highlighted blue in the table are available with short delivery times. The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque. Keyway according to DIN 6885, page 1 ♦ Tolerance of keyway width JS10. ** Z = Number of tapped holes or mounting holes G on pitch circle T. Mounting The customer connecting parts are centered on the ball bearing external diameter F and assembled via the outer ring. The tolerance of the shaft...

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