Mechanical torque limiter SIKUMAT® ST
ball bearingcompactsafety

Mechanical torque limiter - SIKUMAT® ST - RINGSPANN - ball bearing / compact / safety
Mechanical torque limiter - SIKUMAT® ST - RINGSPANN - ball bearing / compact / safety
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Characteristics

Operation
mechanical, ball bearing
Other characteristics
safety, compact, backlash-free

Description

Overview
The positive (ratcheting) torque limiter SIKUMAT4 ST is a precision safety device for machines and installations. It operates ratcheting and backlash-free using the ball principle and is intended for compact shaft-mounted applications with an integral cone clamping element and bearing support.

Advantages
  • Backlash-free operation in both rotation directions
  • Compact design with high power density
  • Integral ball bearing to support the driven component
  • Very high response accuracy due to the ball principle
  • Simple, backlash-free shaft fastening with integrated cone clamping element
  • Calibrated micro-adjustment of the torque setting, possible even after installation


Function
  • When the preset limit torque is reached, the SIKUMAT4 ratchets through
  • The SIKUMAT4 automatically re-engages once the overload is removed
  • Overload can be signalled by a proximity switch to stop the drive or trigger another control function


Product information
  • Datasheet ST (PDF)
  • Catalogue: Overload clutches (PDF)


Technical specifications
  • Type: Ratcheting positive torque limiter with ball principle
  • Backlash: Backlash-free in both rotation directions
  • Bearing: Integral ball bearing for support of the driven component
  • Mounting: Integral cone clamping element for backlash-free shaft fastening
  • Torque adjustment: Calibrated, micro-adjustable setting even post-installation
  • Re-engagement: Automatic re-engagement after overload
  • Overload indication: Possible via proximity switch
  • Application: Precision coupling / overload protection on machines and installations
  • Manufacturer: RINGSPANN

Catalogs

Exhibitions

Meet this supplier at the following exhibition(s):

EXPOSIBRAM 2026
EXPOSIBRAM 2026

24-27 Aug 2026 Belo Horizonte (Brazil)

  • More information
    Electra Mining Africa
    Electra Mining Africa

    7-11 Sep 2026 Johannesburg (South Africa)

  • More information
    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.