FXRV met klemstuk, lift-off

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Beschrijving

Ringspann vrijlooplagers FXRV

for bolting to the face

with sprag lift-off X and torque limiting

Features

Integrated Freewheels FXRV are sprag freewheels without bearing support and with sprag lift-off X. They consist of the Integrated Freewheels FXM with additional torque limiter.

The sprag lift-off X ensures a wear-free free­wheeling operation when the inner ring ­rotates at high speed.

The freewheels FXRV are used as:

  • Backstops

for continuous conveyor installations with multiple drives in which each drive is equipped with its own backstop. In such continuous conveyor installations with multiple drives it is important to consider the problem of the unequal distribution of backdriving torque to the individual drives and backstops. As soon as the installation comes to a standstill, the entire backdriving torque is applied primarily to a single backstop, due to differences in the play and elasticity of the drives involved. In installations equipped with backstops without torque limiters, the individual gearboxes and the corresponding backstops must be designed to accommodate the entire backdriving torque of the conveyor installation in order to ensure safety.

The problem of the unequal distribution of backdriving torque is solved by using backstops FXRV with torque limiting. The torque limiter which is built into the backstop slips temporarily when the specified torque is exceeded until the other backstops engage in succession. In this way, the entire backdriving torque of the conveyor installation is distributed to the individual gearboxes and backstops. Furthermore, dynamic peak torques which occur during the locking process are reduced, thereby protecting the gearboxes against damaging peak torques. For this reason the use of backstops FXRV with torque limiting in continuous conveyor installations with ­multiple drives enables the application of gearboxes with smaller dimensions.

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