Overload Clutches Positive Torque Limiters • Friction Torque Limiters • Force Limiters Edition 2019/2020 RINGSPANN® Registered trademark of RINGSPANN GmbH, Bad Hombu

Issue 03/2019 - we reserve the right to make technical modifications SIKUMAT® RIMOSTAT® Registered Trademarks of RINGSPANN GmbH, Bad Homburg

The more comprehensive the automation of machines and installations, the safer their operational function needs to be. Blockages or overloads should never be cause for the destruction of operationally important components. Stoppages must be kept to a minimum so that the production process continues as quickly as possible and without costly repairs. After all, shorter downtimes mean higher productivity. RINGSPANN Overload Clutches are mechanical safety devices which disconnect the output from the input when a preset limit value has been reached. Thus they protect against damage and stoppage times...

RIMOSTAT® RSHD

* When the preset limit torque has been reached, a limit sensor indicates the overload. There is no interruption of the torque transmission.

Adjustable limit torque or slipping torque [Nm]

Ratcheting SIKUMAT® SC … with screw faces Advantages • Excellent robustness through surface contact during the disengaging process – therefore maximum life • Fully enclosed with integral bearing – therefore maintenance-free • Adjustment of limit torque setting according to the number of active springs – not through modification of spring pressure The Screw Face Principle Torque transmission is effected through screwshaped radial serrations in the input and output part, which are pressed together by spring force. Like the thread sides of a screw have edge contact with the nut during turning, so...

Ratcheting SIKUMAT® SC … with screw faces Types Series SC - Basic version with flange connection For attaching chain wheels, belt pulleys, gear wheels etc. Bearing of attached component on the shaft to be provided by the customer. Series SCE - with flexible shaft coupling For flexible connection of two shafts. The flexible elements are oil-proof. Series SCL - with torsionally rigid shaft coupling For torsionally rigid connection of two shafts. Possibility to compensate for large radial and angular displacements. Notes Torque setting Proximity switch Normally the limit torque is set at the factory....

Ratcheting SIKUMAT® SC with screw faces Basic version with flange connection 10-1 Z = number of tapped holes G on pitch circle T • Installation must be shut down as soon as torque limiter responds Technical Data Torque type

Ratcheting SIKUMAT® SCE with screw faces with flexible shaft coupling Installation must be shut down as soon as torque limiter responds Technical Data Torque type End number

Ratcheting SIKUMAT® SCL with screw faces with torsionally rigid shaft coupling 12-1 Technical Data Torque type End number

for Ratcheting SIKUMAT® with screw faces 13-1 Effect The proximity switch's response to an overload is to react on the switching disc located internally. During normal operation the proximity switch is closed, the yellow LED is illuminated. The switching disc moves as the preset limit torque is reached. The proximity switch opens and the yellow LED goes out. A speed-dependent switching sequence is triggered at the output end of the limit sensor. Output: PNP-Transistor Internal power consumption: 10 mA Protection type: IP 67 Notes The proximity switch is supplied with an aluminium support...

with balls 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 post-installation • Cost effective 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...

Ratcheting SIKUMAT® SG … with balls Types Series SG - Basic version with flange connection For attaching chain wheels, belt pulleys, gear wheels etc. Bearing of attached component on the shaft to be provided by the customer. Series SGR - with short hub and integral needle bearing With short hub and needle bearing for narrow components to be connected 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. Series SGE - with flexible shaft coupling For flexible connection...

Ratcheting SIKUMAT® SG with balls Basic version with flange connection Technical Data Torque type

Ratcheting SIKUMAT® SGR with balls with short hub and integral needle bearing Technical Data Torque type

Ratcheting SIKUMAT® SGG with balls with long hub Technical Data Torque type

Ratcheting SIKUMAT® SGE with balls with flexible shaft coupling Technical Data Torque type End number

with balls 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 The Ball Principle - Backlash free The torque is transmitted via balls which 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...

Ratcheting SIKUMAT® ST … – Backlash free with balls Types Series ST - Basic version with flange connection For attaching chain wheels, belt pulleys, gear wheels etc. Support of the component to be connected directly on the integral ball bearing. Series STG - with long hub With long hub for wide components to be connected. Support of the component to be connected directly on the integral ball bearing; additional radial bearing to be provided by the customer. 21-2 Series STE - with flexible shaft coupling For flexible connection of two shafts. Series STL - with torsionally rigid shaft coupling...