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TAS Schäfer Stainless Steel Shrink Discs

Two sets of shrink discs. All in rust-proof stainless steel.

TAS Schäfer Stainless Steel Shrink Discs 3173 1.4122 SHRINK DISC (2-PART)


  • Simple assembly and disassembly
  • Great corrosion and acid resistance
  • Reliable torque transmission even in tough environments
  • Transmittable torque from 87Nm to 27,800Nm
  • Nominal diameter from 14mm to 262mm

Choosing the right material is important for shrink discs. Stainless steel is more durable and resistant to corrosion, suitable for operation within packaging industries, especially in relation to packing food or chemicals.

Stainless steel shrink discs are available in 2 varieties. The 2-part 3173 series, and the 3-part 3071 series. Each model being suited for a specific niche. With the 2-part shrink disc having superior torque output, while 3-part shrink discs are easier to assemble and disassemble. For more information, refer to their entries in TAS Schäfer’s product flyer.

Stainless Steel Benefits

Shaft-hub connections made of stainless steel are increasingly used in industry today. On the one hand, this is due to the fact that the demands on the components in certain industries are becoming ever higher, but at the same time, the processing of stainless steel has also become easier. Stainless products in drive technology are particularly characterised by their resistance to chemically aggressive substances. They are therefore increasingly used in the food and packaging industries, maritime technology, laundry technology or in laboratory equipment. In general, stainless products are used wherever the increased risk of corrosion and purity are important criteria.

The Standard stainless steel 1.4122 used is martensitic with good corrosion resistance and excellent wear resistance. If the product is to be used in a more aggressive environment, the 1.4571 material is preferred. This stainless austenitic steel offers very good corrosion resistance and is also suitable for cryogenic and elevated temperatures up to 550°C.

However, it should be noted that despite good mechanical properties, products made of stainless steel achieve lower transmission values than comparable products made of standard materials such as 42CrMo4+QT. In addition to the mechanical properties of the steel, the mechanical properties of the clamping screws are decisive for this. The strength values of stainless steel tension bolts are significantly lower than the strength values of high-strength steel bolts. As a rule, however, the transmission values of stainless products are sufficient for their use. Should this not be the case, special solutions can be implemented quickly and easily.


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