Sikumat ST

SIKUMAT® ST … Ratcheting – Backlash free – with balls

The torque is transmitted via balls that are pressed 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. As the preset limit torque is reached, the balls rise out of the axial grooves and ratchet into the respective next axial groove – until 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.
• Automatic re-engagement of the SIKUMAT® after the overload has been eliminated.
• 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.