Complete Freewheels BA with lever arm with rollers or with sprag lift-off X Application as ➧ Backstop Complete Freewheels BA with lever arm are sealed freewheels with ball bearings. The freewheels BA have an end cover and are fitted to shaft ends. The oil filling is carried out after the freewheel has been fitted to the end of the shaft. Besides the standard type, the type with sprag lift-off X is available for wearfree freewheeling operation at high speed rotating inner ring. Nominal torques up to 57 500 Nm. Bores up to 150 mm. A multitude of standardized bore diameters are available with short delivery times. Application example Complete Freewheel BA 45 SX as a backstop, arranged at the end of the intermediate shaft of a spur gearbox. The backdriving torque is supported by the lever arm with holding pin on the gearbox housing. If the holding pin is removed, the shaft can be turned in both directions. With the high shaft speed in normal operation (freewheeling operation), the type with sprag lift-off X is used; the sprags work in freewheeling operation without contact and hence are wear-free.

Complete Freewheels 33-2 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. The tolerance of the shaft must be ISO h6 or j6. For freewheels BA, the inner ring must be secured axially with the supplied retainer plate. Prior to commissioning, the freewheel must be filled with oil of the specified quality. Mounting The...