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Shaft and rotary seals

In addition to the entire range of shapes and dimensions of radial shaft seals according to DIN 3760/3761, Hänssler also supplies all types of axial shaft seals (chevron set) as well as shaft protection sleeves. We manufacture seals for rotary or swivel movements for rotary distributors, swivel drives, hydraulic motors and tool spindles of any kind.

Standard profiles

The standard profiles shown below are seals that represent the state of the art. We manufacture these standard seals in-house or supply them as moulded parts from approved partners for all required groove dimensions in a variety of materials. Depending on the quantity, the material and your requirements, we will offer you seals in the appropriate manufacturing process – everything from one source!

Profiles according to customer preferences

If you have conditions which cannot be optimally solved with a standard profile, we can also manufacture an ideal wiper system according to customers’ drawings or develop one. In this field we are a development partner and are perfectly equipped to design the ideal product for you.

Choosing the correct profile

The more information is known, the better a sealing system can be adapted to a specific application. To choose the right profile and the ideal material, the following criteria are vital:

  • installation space
  • double or single-acting
  • pressure range
  • temperature range
  • medium
  • rotary / swivel speed
  • counter surface
  • installation option
  • friction behaviour
  • tightness
  • service life expectancy
  • price and availability

Shaft sealing rings

Application

  • universal use
  • drives
  • high sliding range
  • low perssures
  • Special solution for extreme sliding speeds
  • low friction

Material selection for preload rings

  • steel, stainless steel
  • plastic
  • aluminium
  • gunmetal

Material selection for springs

  • steel, stainless steel
  • special materials
Pressure range:

up to 10 bar

Circumferential speed:

up to 30 m/s

Temperature range:

-40 to +220 °C (depending on material)

Rotary seals (compact, axial and groove ring profiles)

Application

  • rotary transmission
  • rotary indexing tables
  • swivel devices
  • assembly in closed grooves/li>
  • many sizes available as moulded parts
  • small installation space
  • low friction
  • single- and double-acting operation
Pressure range:

up to 200 bar

Circumferential speed:

up to 30 m/s

Temperature range:

-55 to +220 °C (depending on material)

Rotary seals with leader elements made of elastomer

Application

  • rotary transmission
  • rotary indexing tables
  • swivel devices
  • special machine engineering
  • single- and double-acting operation
  • assembly in closed grooves from a diameter of 20 mm
  • high pressures
  • low sliding speeds
Pressure range:

up to 300 bar

Sliding speeds:

up to 2 m/s

Temperature range:

-55 to +200 °C (depending on material)