Ball bearing torque limiter SIKUMAT® SB
double-rollerfriction-freesafety

Ball bearing torque limiter - SIKUMAT® SB - RINGSPANN - double-roller / friction-free / safety
Ball bearing torque limiter - SIKUMAT® SB - RINGSPANN - double-roller / friction-free / safety
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Characteristics

Operation
ball bearing, friction-free, double-roller
Other characteristics
safety, load-separating
Torque

Max.: 10,000 Nm
(7,375.621493 ft.lb)

Min.: 0 Nm
(0 ft.lb)

Diameter

Max.: 125 mm
(4.92 in)

Min.: 0 mm
(0 in)

Description

Overview
SIKUMAT® SB positive torque limiters are frictionless, synchronous disengaging overload clutches with a double-roller design, used to protect machines and installations.

Advantages
  • High consistency of limit torque over the operating life thanks to the double-roller principle
  • Disengages on overload — separation of input and output
  • Synchronous re-engagement after 360° rotation
  • Transmissible torque up to 10 000 Nm
  • Suitable for shaft diameters up to 125 mm

Function
  • When the preset limit torque is reached, the SIKUMAT® separates input and output via a locking mechanism with integrated bearings
  • After removal of the overload, the device can be manually re-engaged synchronously to the start position after 360° rotation
  • Re-engagement requires application of an axial switching force to the switching ring

Product information
  • Datasheet SB (PDF)
  • Catalogue: Overload Clutches (PDF)

Technical characteristics / specifications
  • Type: Positive torque limiter, synchronous disengaging, double rollers
  • Operating principle: Double-roller contact for high consistency of limit torque
  • Protection mode: Separation of input and output on overload via locking mechanism with integrated bearings
  • Re-engagement: Manual synchronous re-engagement after 360° (axial switching force required)
  • Rated torque: up to 10 000 Nm
  • Suitable shaft diameters: up to 125 mm

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.