VR Dichtungen GmbH
VR Dichtungen GmbH
VR Dichtungen GmbH
Our catalog<br><br />
for you
Our catalog for you

Housing bore

The following dimensions should be observed for VR sealing rings. The required surface quality can be achieved by finishing.

The following applies to surface roughness:
– Rt ≤ 16 μm (Ra ≤ 3 μm)
– 4.0 μm ≤ Rz ≤ 8.0 μm
– Drill diameter: ISO tolerance H 8

The housing bore should always have a chamfer of at least 15° so that the sealing ring is advanced in the housing bore and the diaphragm does not shear off.


Housing bore

t1 = B * 0.85 (minimum)
t2 = B + 0.3 mm (minimum)
r2 = 0.7 mm (maximum)
Concentricity and coaxiality according to DIN 3760

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