Internal Freewheels FCN … R for press fit on the outer ring with rollers Application as ➧ Backstop ➧ Overrunning Clutch ➧ Indexing Freewheel Features Internal Freewheels FCN … R are roller freewheels without bearing support and with series 62 ball bearing dimensions. The outer ring is pressed into the customer housing. This makes compact, space-saving fitting solutions possible. Nominal torques up to 840 Nm. The torque is transmitted on the outer ring by press fit. Bores up to 80 mm. 78-1 Application example Internal Freewheel FCN 30 R as overrunning freewheel in the drive of the roof brush of an automatic car washing facility. The freewheel is arranged in the hub of a shaft coupling that connects the motor and the reduction gear. The freewheel prevent the drive from pushing the roof brush uncontrolled down onto the car roof in the event of a fault. The roof brush is raised by the freewheels that are working in driving operation. The direction of motor rotation changes in order to lower the brush. The downwards movement of the roof brush is performed by its own weight at the speed specified by the motor. In the case of an uncontrolled lowering of the roof brush on the car roof, the drive is automatically disengaged via the freewheel. The brush rests on the roof under its own weight, while the freewheel which is working in driving operation enables the drive to continue to turn in the lowering direction without causing any

Internal Freewheels FCN ... Rfor press fit on the outer ring with rollers 79-1 Standard type For universal use ■ 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. * Keyway according to DIN 6885,page 3 • Tolerance of keyway width JS10. Freewheel Size Mounting Internal freewheels FCN ... R are without bearing support. Concentric alignment of inner and...