Hydraulic Shrink Discs

Product group

Tas Shs 1000 990 P 1 Schrumpfscheiben Hydraulische Produkte

Hydraulic Shrink Discs

  • Application specific design / customization
  • Rapid tightening and loosening in comparison with mechanical shrink discs
  • Inner ring can be adapted to different sizes
  • Maintenance and repair feasible customer-sided
  • Transmission of high torques
  • Relatively low pressure

Wherever there is a requirement to connect shaft and hub safely and quickly, the hydraulically tensionable shrink discs type "SHS" from TAS Schäfer GmbH are used. With the TAS-SHS series, TAS Schäfer GmbH has developed a hydraulically tensionable shrink disc type "SHS", which is used everywhere in drive technology for frictional shaft-hub connections. Due to its fast and safe clamping, it is particularly suitable for assembly on test benches and repetitive clamping operations. Furthermore, the SHS series impresses with its unique selling points, such as low pressure required for clamping, customer-side performance of maintenance and repair work, and the possibility of adapting the inner ring to different sizes.

Further development and the fulfillment of specific customer requirements as well as the highest quality standards are indispensable prerequisites in modern manufacturing today.

The TAS-SHS product range has been used thousands of times in many applications for years. All over the world, especially in wind turbines, on hydraulic motors and in gear test benches, hydraulically tensionable shrink discs of the "SHS" design can be found. The main function of a hydraulically tensionable shrink disc type "SHS" is to securely connect a shaft to a hub by means of frictional locking. For example, between a drive shaft and a transmission hollow shaft. The hydraulically tensionable shrink disc creates a backlash-free connection by pressing the hub onto the shaft. This type of connection is mainly used to transmit torque. The hydraulically tensionable shrink disc of the "SHS" series only provides the required forces and does not itself transmit any forces or torques between the shaft and hub. It is therefore not in the flow of forces. In the SHS products of TAS Schäfer GmbH, the basic principle of the mechanical, three-part shrink disc has been retained. This principle has been tried and tested for a long time. Here, the force-transmitting friction surfaces are strictly separated from the hydraulic system. This strict separation prevents oil contamination of these surfaces.

Tas Shs 560 1 Schrumpfscheiben Hydraulische Produkte

SHS Standard

Tas Shs 1000 990 P 1 Schrumpfscheiben Hydraulische Produkte

SHS bench

Tas Shs 230 Lr 1 Schrumpfscheiben Hydraulische Produkte

SHS Marine

Tas Shs 530 2.5 1 Schrumpfscheiben Hydraulische Produkte

SHS wind power

Tas Shs 240.1 Mddt 1 Schrumpfscheiben Hydraulische Produkte

SHS special version

Tas Whs 300 Gl 2 Wellenkupplungen Hydraulische Produkte

WHS shaft coupling

Tas Fkh 090 P 1 Flanschkupplung Hydraulische Produkte

FKH flange coupling

Use of Hydraulic shrink discs

The biggest advantage of the hydraulic tensionable shrink disc like the SHS series is the enormous time saving during assembly. This system can already be clamped with low pressure between 120bar and 200bar and thus reduces the assembly times considerably. The reduction of this time increases exponentially with the diameter. For larger diameters, e.g. 530mm, a hydraulically tensionable shrink disc of the "SHS" type is already tensioned after a few minutes.

This compares with an assembly time of several hours for a mechanical shrink disc. The time required and the physical strain on fitters and maintenance personnel can therefore be significantly reduced. Even after a long service life of several years, when, for example, seals no longer function depending on their location, the hydraulically tensionable shrink disc of the "SHS" series can be dismantled in the same way as a mechanical shrink disc. This is done by loosening the screw connection and without further pressure application.

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