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QR (70° Shore NBR)

Quad ring 70SH NBR


Max. sliding velocity
  • 0.5 m/s
  • in external and internal grooves 
Construction type
  • quad ring 
  • NBR 70 Shore A 
Max. working pressure
  • up to 150 bar, up to 400 bar with support ring 
  • mineral oil 
  • Hydraulic fluids HFA, HFB 
Temp. max.
  • 110 °C
Temp. min.
  • -30 °C
Working pressure
  • 150 bar
Customs tariff number
  • 40169300 
All characteristics

Product description

Rotational movements (consult us) up to 2 m/s
QR6, QR7, QR8 must be fitted into an open groove type B
a = 1.78; e max. = 0.05
a = 2.62 - 3.53; e max. = 0.07
a = 5.34 - 6.99; e max. = 0.1
Low spatial requirement and low friction.
Numerous applications possible in static and dynamic sectors, no distortion possible with rotational movements.
Ordering information
For special operating conditions (fluid, temperature, pressure ...) please contact us.
Alternative material possible: NBR 90, EPDM, MVQ, FPM

Product variants

93 Results
Show dimensional drawing
a (mm)
Ø A (mm)
Details / items
1.78  mm
2.9  mm
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1.78  mm
3.68  mm
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1.78  mm
4.47  mm
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1.78  mm
5.28  mm
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1.78  mm
6.07  mm
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1.78  mm
7.65  mm
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1.78  mm
9.25  mm
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2.62  mm
9.19  mm
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2.62  mm
10.77  mm
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2.62  mm
12.37  mm
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Shows 10 of 93

Column selection

a (mm)
Ø A (mm)