V-Rings
Efficient sealing

V-Rings are seals for dynamic front sealing, made entirely of elastomer.

What are V-rings?

These seals are designed to rotate in conjunction with the shaft without the need for a specific housing or metal reinforcement, providing effective sealing against external contaminants.

Its design includes a elastic body which is fastened to the shaft by interference, and a flexible lip which seals frontally against a fixed surface, perpendicular to the shaft. Thanks to this design, they do not produce wear, neither on the shaft nor on the contact surface.

Main applications of V-rings

Like particle deflectorprevents ingress of dust, dirt, water and other splashes.
Like secondary sealprotects main seals from intrusion of contaminants.
Like bearing sealwith or without protective labyrinths.
Like oil retaining element in internal applications.

V-Rings materials available

Acrylonitrile butadiene (NBR)

Synthetic rubber with exceptional behavior against lubricants, which makes it a first choice for seals and O-rings. Limited resistance to weathering and acids.

Most common temperature range from -30 ºC to +110 ºC.

Fluoroelastomer (FPM / FKM)

This material is popularly known as viton. It has good resistance to lubricants, fuels and acids and bases, among other products. Peroxide-cured formulations improve its resistance to incompatible fluids such as alcohols and steam. It is a material widely used as seals and O-rings that stands out for its low permeability to gases.

Most common temperature range from -20 ºC to +210 ºC.

Chloroprene (CR)

This material is popularly known as neoprene. It has good resistance to weathering, lubricants and ammonia, among other products. Good resistance to abrasion.

Most common temperature range from -40 ºC to +100 ºC.

Advantages of V-rings

They do not wear the shaft due to the low friction of the lip.
They can be adapted to various shaft diameters within a range, facilitating the management of references.
The shaft surface finish need not be of high precision, simplifying machining.
They do not wear the shaft.
Low friction and energy consumption.

Types of profiles available

VA Profile

Standard design. Wide range of diameters from Ø9,5 mm to Ø2.020 mm.

VS Profile

Same as VA but with a more robust body. Up to Ø210 mm.

VL Profile

Reduced section for small housings. Ø135 to Ø410 mm.

Profile VE

Designed for large diameters. Long lip to compensate for misalignment. Ø450 to Ø2.010 mm.

Epidor's V-rings: DR 106 and 107

For further technical information, please refer to the detailed model data sheets:

DR 106

DR 107

Epidor's DR 106 and DR 107 are all-elastomer seals for rotary applications. Both function as auxiliary seals that protect main seals located at the shaft outlet. Their design allows them to rotate in conjunction with the shaft without generating wear or requiring specific housing, thanks to their flexible body and front sealing lip.

Front sealing against a surface perpendicular to the shaft prevents the intrusion of particles and contaminants into the bearing assembly.

FAQ's about V-Rings (V-Rings)

In what working conditions is its use recommended?

V-rings are ideal for non-pressurized or very low load applications where dynamic sealing against dust, splash or grease is required. Their temperature and speed range depends on the material used.

What is the function of a V-ring?

It seals axially against external contaminants, acting as a deflector and, in some cases, a secondary lubricant retainer.

Can they be used as the only sealing system?

Yes, in low pressure applications or as external protection. In critical systems they are often used as a complement to a main seal.

Do you need V-rings for your project?

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