Synchronous Ratcheting SIKUMAT with single rollers

The Single Roller Principle

The torque is transmitted via rollers which are pressed by Belleville springs into detents.When the preset limit torque has been reached, the detent ring is axially displaced. Reengagement is effected synchronously after 360º due to the asymmetrical division of the detents.

Advantages

• Synchronous re-engagement after 360º
• Integral fixed bearing
• Driving keyway in the 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.
• Following elimination of overload automatic synchronous re-engagement of the SIKUMAT to the starting position after 360º.
• 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 SN - 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 SNR - 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 SNG - with long hub

With long hub for wide components to be connected. Bearings of the attached component to be provided by the customer. (for dimensions.pdf click download)

Series SNE - with flexible shaft coupling

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

Notes

Torque setting The limit torque can be set at the factory on request. 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