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V-Rings | V-Ring Seals

V-rings are axial seals for shafts and bearings. V-rings seal axially against a counter face. The V-ring is reliable and effective against for instance dust, dirt and splashing water or oil. NewDealSeals supplies various types of V-Rings, thus providing alternatives for brand names such as Frontseal®.

Suitable for

  • Sealing shafts from dirt, water and oil in applications without pressure.

Not suitable for

  • Reciprocating movements.
  • Pressurised applications.
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Two brown rubber V-rings Black V-ring zoomed in
Two brown rubber V-rings
Black V-ring zoomed in

Advantages

  1. No wear on shaft
  2. Low friction
  3. High rotational speeds possible
  4. No special requirements on shaft; no groove required
  5. Easy to mount
  6. Excellent durability

  7. Single element sealing solution
  8. Dynamic friction reduces with increasing peripheral speed due to the centrifugal force

How do V-Rings work?

How do V-rings work

V-rings are rubber face seals. The V-ring is mounted on the shaft and seals the counter surface. A V- ring is produced slightly smaller than the shaft itself, causing it to clamp onto the shaft. The lip of the seal prevents liquids and dust from the outside. When the rotational speeds increases, centrifugal forces act on the sealing lip which reduces contact pressure. This effect allows the V-rings to be used at higher rotational speeds at very low friction losses.

Technical Specifications

Movement type

Rotary; dynamic rotating

Size range

3 - 2020 mm

Velocity

≤ 12 m/s

Available standards

Various types available for standard shaft sizes

Temperature range

NBR:

-40° to +108° C

FKM:

-25° to +204° C

FFKM:

-30° to +325° C

Available materials

FKM (standard), NBR, CR, EPDM, FVMQ, HNBR, FFKM, PU, SBR, TPC-ET, VMQ (Upon request)

Available compliances

KTW, USP, NSF 51 61, WRC, WRAS, FDA, R67 01

V-Ring Types | Profiles

V-ring profile AV

Type AV

Medium shaft seating force

The most common V-ring profile. Type AV has a perpendicular rear face. Available for shaft diameters ranging from 3 – 2020 mm.

Advantage:

  • No wear on shaft.
V-ring profile SV

Type SV

High shaft seating force

The SV profile has a wider body than the more common type AV. The wide body creates a higher radial force. Available for shaft diameters ranging from 4 – 210 mm.

Advantages:

  • Improved radial force.
  • No wear on shaft.
V-ring profile LV

Type LV

Low shaft seating force

The LV profile is used for applications where limited space is available. Available for shaft diameters ranging from 135 – 630 mm.

Advantages:

  • Compact (for applications where space is limited).
  • No wear on shaft.
V-ring profile EV

Type EV

High shaft seating force

The EV profile is used for heavy duty purposes with large diameters. This profile has an additional chamber for mounting clamping bands. These clamping bands can be used to create additional axial fixation.

Advantages:

  • Additional chamber for mounting clamping bands.
  • No wear on shaft.
V-ring profile AXV

Type AXV

High shaft seating force

The AXV profile is the heavy duty front seal, designed for large high speed bearing arrangements. Available for shaft diameters ranging from 200 – 2000 mm.

Advantage:

  • No wear on shaft.

Materials

Rubber Material Characteristics Performs well in Does not perform well in
NBR, Nitrile
Krynac®, Nipol®

Temperature range:

-40° to +108° C

Abrasion resistance:

Tear/Wear resistance:

Relative Cost:

  • Water
  • Petroleum Oils & Fluids
  • Hydraulic Oils
  • Low temperatures
  • Ozone exposure
  • Acids
  • Solvents
FKM, Fluorocarbon
Viton®, DAI-EL®, Dyneon®, Tecnoflon®

Temperature range:

-25° to +204° C

Chemical resistance:

Ozone resistance:

Relative Cost:

  • High temperatures
  • Solvents
  • Petroleum oils
  • Most chemicals
  • Low temperatures
  • Applications including quick movements/direction changes after still stand due to the stick slip effect*.
FFKM, Perfluoroelastomer
Fluorezi®, Chemraz®, Isolast®, Parofluor®, Simriz®

Temperature range:

-30° to +325° C

Chemical resistance:

Physical properties:

Relative Cost:

  • Superior temperature resistance
  • Superior chemical properties

V-Rings where extreme temperature and chemical resistance is required, like chemical processing and high temperature fuel applications.

*Stick slip effect: Rubber sticking to a surface when there is a transition from standstill to movement. Stick slip effect can cause damage to the rubber, causing leakage.

Contact Us

We believe in the quality of our products and service. Fill out the form and one of our skilled engineers will contact you within the next business day.

Contact details

  • +31 (0) 226 362 233
  • info@newdealseals.com
  • Energiestraat 2-5, 1749 DN Warmenhuizen, Nederland