Sikumat SU

SIKUMAT® SU … Synchronous Ratcheting – Backlash free – with balls

The torque is transmitted via balls that are pressed by Belleville springs into v-shaped grooves. The grooves are arranged axially on the output side and radially on the input side, which means that torque can be transmitted backlash-free in both directions of rotation. When the preset limit torque has been reached, the groove-ring is displaced. Due to the unsymmetrical division of the grooves, re-engagement is effected synchronously after 360°, as soon as the overload has been eliminated. The negative characteristic disc springs give extremely fast, accurate and consistent overload protection.

Advantages

• Backlash free in both directions of rotation
• Compact design
• Integral ball bearing for supporting the component to be connected
• Very high response accuracy through the ball principle
• Simple and backlash-free fastening onto shaft with integral cone clamping element
• Calibrated micro-adjustment of torque setting possible, even post-installation

Function

• When the preset limit torque has been reached the SIKUMAT® ratchets through.
• Following elimination of overload automatic synchronous re-engagement of the SIKUMAT® to the starting position after 360°.
• The overload can be indicated by a proximity switch. This means that the drive can be switched off immediately or another control function can be activated.