Schaeffler Singapore

Infographic: Overrunning alternator pulleys (OAP)

Overrunning alternator pulleys (OAP)

Thermal management module

Thermal management module


Automotive Product Information | 2014-08
Thermal Management Module

Product Range

Belt Drives

Smooth Running and Low Vibration

Belt drives are used for controlling engine timing and for driving accessories. As a systems supplier, we develop and manufacture tensioner and idler pulleys, hydraulic and mechanical belt-tensioning systems, as well as alternator decoupling devices.

Operating absolutely maintenance-free, these systems are perfectly matched to each other and set the standard for durability. The belt-driven starter generator represents a highly effective approach to hybridizing the drivetrain. This device allows the engine to operate in a comfortable and efficient start/stop mode, thereby making a significant contribution toward reducing fuel consumption and emissions. The thermal management module is a key to energy-efficient engine temperature control.



  • Belt drive systems
  • Primary drives
  • Toothed-belt tensioners for primary drives
  • Toothed chains in the primary drive
  • Auxiliary drives
  • Mechanically-dampened belt tensioners
  • Hydraulically-dampened belt tensioners
  • Belt-driven starter generator drives (RSG)
  • Tensioning systems for belt-driven starter generators
  • Tensioner and idler pulleys
  • Overrunning alternator pulleys (OAP)
  • Thermal management modules

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