Ratcheting SIKUMAT with balls

The Ball Principle 

The torque is transmitted via balls which are pressed into detents via Belleville springs. When the preset limit torque has been reached the balls rise out of their seatings and slot into the nearest respective detent - until the overload has been eliminated. This characteristic, together with the special geometry of the detent gives the SIKUMAT a very high response accuracy.

Advantages 

•  Very high response accuracy through the ball principle 
• Integrated fixed bearing 
• Keyway in connecting flange for maximum load capacity 
• Calibrated micro adjustment of torque setting possible, even postinstallation 
• Exchange of current torque limiters possible 
• Cost effective

Function

• When the preset limit torque has been reached the SIKUMAT ratchets. 
• 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.

Types

Series SG - flange design

For attaching chain wheels, belt pulleys, gear wheels etc. Bearing of attached component on the shaft to be provided by the customer. (for dimensions.pdf click download)

Series SGR - with short hub and integral needle bearing

With short hub and needle bearing for narrow components to be connected (for dimensions.pdf click download)

Series SGG - with long hub

With long hub for wide components to be connected. Bearing of the attached component in the form of plain or needle bearing to be provided by the customer. (for dimensions.pdf click download)

Series SGE - with flexible shaft coupling

For flexible connection of two shafts. The flexible components are oil proof. (for dimensions.pdf click download)

Notes

Torque setting If requested, the limit torque can be set at the factory.Setting or modification of the limit torque can also be carried out by the customer. See operating instructions for further details.

Proximity switch The overload can be indicated by a non-contact or a mechanical proximity switch.

Speed Control ESC The RINGSPANN speed control ESC (Electronic Speed Control) monitors speed deviations and speed differences safely and also under difficult operating conditions. see ESC