Ringspann Overload Clutches

Ratcheting – SIKUMAT® SC/SG/ST

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.
  
  
  Information above pertains to SIKUMAT® ST.

Synchronous Ratcheting – SIKUMAT® SU/SA/SN

Advantages

• Synchronous re-engagement after 360°
• Integral fixed bearing
• Driving keyway in the connecting flange for maximum load capacity
• Calibrated micro adjustment of torque setting possible, even post-installation
• Cost effective

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.
  
  
  Information above pertains to SIKUMAT® SN.

Disengaging – SIKUMAT® SR

Advantages

• Disengages in case of overload – separation of input and output
• Integral fixed bearing
• Keyway in connecting flange for maximum torque capacity
• Calibrated micro adjustment of torque setting possible, even post-installation
• Cost effective

Function

• When the preset limit torque has been reached the SIKUMAT® disengages the input and output.
• After the overload has been eliminated the SIKUMAT® can be switched on again manually.
• This means that an axial switching force must be applied to the switching ring.

Synchronous Disengaging – SIKUMAT® SB

Advantages

• High degree of consistency of limit torque over the duration of operation through double roller principle
• Switching off in case of overload – separation of input and output
• Synchronous re-engagement after 360°
• Torques up to 10 000 Nm
• For shaft diameters up to 125 mm

Function

• When the preset limit torque has been reached the SIKUMAT® effects a separation of input and output by means of a locking mechanism with integral bearings.
• Following elimination of the overload manual synchronous re-engagement of the SIKUMAT® to the starting position after 360°.
• This requires an axial switching force to be applied to the switching ring.
  

RIMOSTAT® Torque Limiters RSHD – for heavy-duty applications

Features

• Better stability of slipping torque than Belleville spring torque limiters over duration of the operating period
• Adjustment of slipping torque setting according to the number of active springs – not through modification of spring pressure
• Superb wear-behaviour during high energy-input
• High temperature resistant

RIMOSTAT® Torque Limiters RS

Advantages

• Particularly suitable in applications with frequent slipping
• Better stability of slipping torque than Belleville spring torque limiters over duration of the operating ­period
• Adjustment of slipping torque setting according to the number of active springs – not through modification of spring pressure

Function

• When the preset slipping torque has been reached the built-in component (e. g. chain wheel) slips.
• During the slipping process, input and output rotate relative to each other and the preset slipping torque continues to be transmitted.
• Inherent in the slipping process is a high energy consumption.
• Re-engagement is not necessary.

Belleville Spring Torque Limiters RT

Advantages

• Cost effective, simple Torque ­Limiter
• Adjustment option for pad wear
• 12 Sizes for slipping torques from 0.5 Nm to 10 000 Nm

Function

• When the preset slipping torque has been reached the built-in component (e. g. chain wheel) slips.
• During the slipping process, input and output rotate relative to each other and the preset slipping torque continues to be transmitted.
• Inherent in the slipping process is a high energy consumption.
• Re-engagement is not necessary.

Series PA

Features

• Forces limited in both directions
• High response accuracy
• Automatic re-engagement
• Maintenance-free
• Robust construction
• Uncomplex design
• Easy to build on
• For disengaging forces up to 140 000 N
• Disengaging force finely adjustable