One of the most important parameters for sealing a V-ring is the surface roughness of the counterface. The speed of the rotating shaft and the nature of the various fluids to be sealed determine the roughness value of the counterface.

The profile of the V-ring seal has been designed to prevent the ingress of dust, dirt, water and oil, while keeping grease inside the system. V-Seal can be used to protect a wide range of bearings. It is sometimes used as a secondary seal to protect a primary seal (mainly on rotating shafts), which does not function effectively in a hostile environment.

The VS profile, with its pyramidal shape, ensures a firm hold of the seal on the shaft, preventing it from moving back. The VS profile is available for shaft diameters ranging from 5 mm to 200 mm.

The VA profile is V-Seal's most standard profile. The VA profile is available for shaft diameters ranging from 3 mm to 2,000 mm.

The VE profile is recommended for larger dimensions and can be attached to the shaft by strapping on its outside diameter. VE is available for shaft diameters ranging from 320 mm to 2,200 mm.

The VA profile can be used in a wide range of applications, such as in combination with bearings, in electric motors and gearboxes.

Type VL V-ring has a narrow axial cross-section, making it compatible with compact assemblies. The VL profile is available for shaft diameters ranging from 105 mm to 875 mm.

Techné has in stock V-rings types VA, VS and VL in NBR and FKM. On request, Techné supplies other materials such as EPDM. Compounds for food applications are available on request (FDA and CE 1935/2004 approvals).