WVSV-RING

V-Ring Type WVS

Axial Shaft Seal

The V-ring is a rubber elastic shaft and bearing seal that is used for pressureless applications. By the help of its own prestress, the base body is statically stuck on the shaft and spins with it. The dynamic sealing takes place with the elastic sealing lip in an axial direction (e.g. against the gable end of a housing or bearing). By the rotational movement of the shaft and the resulting centrifugal force, the solid and fluid particles get ejected from the sealing location.
The type WVS is characterized by a design with slanting back which has the same lip geometry like the type WVA. By the slant in the back of the basis body, the installation length is about 50 % larger and also its adhesion on the shaft increases.
Moreover this back geometry offers a cheap, constructive solution to secure the V-ring in an axial and radial direction with the help of a metallic retaining ring or an undercut on the shaft which then has the slant of the back contour of the V-ring.
It is possible to improve the smoothness of flow by a PTFE coating what enables a reduction of the existing friction by roughly 40-50 %.

Main Advantages are:  
- effective and cheap shaft sealing
- less friction and long durability
- less amount of engineering
- small clearances
- easy installation
- no high surface quality necessary
- works as a sealing element as well as a dirt wiper
- suitable for high rotational speed
- slight angular differences between shaft and counter face possible ( ≤1°)
- can be used as static seal

Application Range:

Working temperature:    – 40 to + 100°C (FKM up to + 180°C, EPDM up to + 140°C)
Surface speed:    ≤ 8 m/s * (see mounting instructions)
   ≤ 15 m/s *
Media:  NBR : mineral oil-based hydraulic oils, air, water, emulsions
   FKM : syntetic oils and greases, acids, lyes
   EPDM : hot air, mild acids

Specific areas of use include domestic as well as electro appliances and electro engines, primarily in small dimensions. Nevertheless the simple handling also allows the application in the areas engineering of water treatment, rolling mill and drying plants.

Materials:
The standard V-ring is manufactured with a NBR 65 Shore A compound. Coating to decrease gliding friction can be easily enabled. Furthermore the seal is usually ordered with the compounds FKM 70 Shore A and EPDM 70 Shore A.

Mounting Instructions:

In order to guarantee a perfect functioning of the unit, the V-rings have to be chosen from the tables with the recommended shaft diameter. As a result, the force fit is guaranteed with elastic pre-tensioning on the shaft. Equally the listed values of the axial mounting dimensions have to be observed in the tables. Up to a peripheral speed of 8 m/s, the V-rings don’t need an additional safeguard. From 8 m/s to 15 m/s safeguards can be necessary for exact adjustment. This can for instance be a shaft shoulder at the back of the V-ring or a tensioning strap at the outer diameter of its base body.
Proper surfaces without special requirements are sufficient for the force fit on the shaft. The dynamic counter running surface can be manufactured with precision turning, whereby radial and spiral scoring is not permitted here.
The surface quality shall be circa Ra = 1,5 – 3 µm, Rmax = 5 – 10 µm and Rz = 6,3 – 10 µm. The counter running surface doesn’t need to be hardened. When using strong abrasive substances such as dirt or even sand and scale, a hardened surface is recommended.

For special applications (high temperature, speed, specific pressure load or the application in water, HFA-, HFB-fluids etc.) please get in contact with our application engineering department.

Welle Ø* Ring Ø Profilhoehe Profilbreite Profilbreite Ø d2 Ø d3 Profilbreite B-Order
  d1 w B2 (vor Einbau) max. min. (nach Einbau) B1  
4,5 - 5,5 4 2 3,9 5,2 C + 1 C + 6 4,5 ± 0,4 VS-0005
5,5 - 6,5 5 2 3,9 5,2 C + 1 C + 6 4,5 ± 0,4 VS-0006
6,5 - 8,0 6 2 3,9 5,2 C + 1 C + 6 4,5 ± 0,4 VS-0007
8,0 - 9,5 7 2 3,9 5,2 C + 1 C + 6 4,5 ± 0,4 VS-0008
9,5 - 11,5 9 3 5,6 7,7 C + 2 C + 9 6,7 ± 0,6 VS-0010
11,5 - 13,5 10,5 3 5,6 7,7 C + 2 C + 9 6,7 ± 0,6 VS-0012
13,5 - 15,5 12,5 3 5,6 7,7 C + 2 C + 9 6,7 ± 0,6 VS-0014
15,5 - 17,5 14 3 5,6 7,7 C + 2 C + 9 6,7 ± 0,6 VS-0016
17,5 - 19,0 16 3 5,6 7,7 C + 2 C + 9 6,7 ± 0,6 VS-0018
19,0 - 21,0 18 4 7,9 10,5 C + 2 C + 12 9,0 ± 0,8 VS-0020
21,0 - 24,0 20 4 7,9 10,5 C + 2 C + 12 9,0 ± 0,8 VS-0022
24,0 - 27,0 22 4 7,9 10,5 C + 2 C + 12 9,0 ± 0,8 VS-0025
27,0 - 29,0 25 4 7,9 10,5 C + 3 C + 12 9,0 ± 0,8 VS-0028
29,0 - 31,0 27 4 7,9 10,5 C + 3 C + 12 9,0 ± 0,8 VS-0030
31,0 - 33,0 29 4 7,9 10,5 C + 3 C + 12 9,0 ± 0,8 VS-0032
33,0 - 36,0 31 4 7,9 10,5 C + 3 C + 12 9,0 ± 0,8 VS-0035
36,0 - 38,0 34 4 7,9 10,5 C + 3 C + 12 9,0 ± 0,8 VS-0038
38,0 - 43,0 36 5 9,5 13 C + 3 C + 15 11,0 ± 1,0 VS-0040
43,0 - 48,0 40 5 9,5 13 C + 3 C + 15 11,0 ± 1,0 VS-0045
48,0 - 53,0 45 5 9,5 13 C + 3 C + 15 11,0 ± 1,0 VS-0050
53,0 - 58,0 49 5 9,5 13 C + 3 C + 15 11,0 ± 1,0 VS-0055
58,0 - 63,0 54 5 9,5 13 C + 3 C + 15 11,0 ± 1,0 VS-0060
63,0 - 68,0 58 5 9,5 13 C + 3 C + 15 11,0 ± 1,0 VS-0065
68,0 - 73,0 63 6 11,3 15,5 C + 4 C + 18 13,5 ± 1,2 VS-0070
73,0 - 78,0 67 6 11,3 15,5 C + 4 C + 18 13,5 ± 1,2 VS-0075
78,0 - 83,0 72 6 11,3 15,5 C + 4 C + 18 13,5 ± 1,2 VS-0080
83,0 - 88,0 76 6 11,3 15,5 C + 4 C + 18 13,5 ± 1,2 VS-0085
88,0 - 93,0 81 6 11,3 15,5 C + 4 C + 18 13,5 ± 1,2 VS-0090
93,0 - 98,0 85 6 11,3 15,5 C + 4 C + 18 13,5 ± 1,2 VS-0095
98,0 - 105,0 90 6 11,3 15,5 C + 4 C + 18 13,5 ± 1,2 VS-0100
105,0 - 115,0 99 7 13,1 18 C + 4 C + 21 15,5 ± 1,5 VS-0110
115,0 - 125,0 108 7 13,1 18 C + 4 C + 21 15,5 ± 1,5 VS-0120
125,0 - 135,0 117 7 13,1 18 C + 4 C + 21 15,5 ± 1,5 VS-0130
135,0 - 145,0 126 7 13,1 18 C + 4 C + 21 15,5 ± 1,5 VS-0140
145,0 - 155,0 135 7 13,1 18 C + 4 C + 21 15,5 ± 1,5 VS-0150
155,0 - 165,0 144 8 15 20,5 C + 5 C + 24 18,0 ± 1,8 VS-0160
165,0 - 175,0 153 8 15 20,5 C + 5 C + 24 18,0 ± 1,8 VS-0170
175,0 - 185,0 162 8 15 20,5 C + 5 C + 24 18,0 ± 1,8 VS-0180
185,0 - 195,0 171 8 15 20,5 C + 5 C + 24 18,0 ± 1,8 VS-0190
195,0 - 210,0 180 8 15 20,5 C + 5 C + 24 18,0 ± 1,8 VS-0199
 

Further sizes on request.

Branch Düren
Westring Dichtungstechnik GmbH
Talbenden 4
D-52353 Düren
Tel:  +49 24 28 - 80 29 - 0
Fax:  +49 24 28 - 80 29 - 29
E-Mail:  dueren@westring-dichtungstechnik.de
Öffnungszeiten
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Westring Dichtungstechnik GmbH
Rudi-Jaehne-Str. 4
D-50769 Köln-Merkenich
Tel:  +49 221 - 5 99 20 18 / 19
Fax:  +49 221 - 5 99 53 62
E-Mail:  koeln@westring-dichtungstechnik.de
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Branch Plauen
Westring Dichtungstechnik GmbH
Fedor-Schnorr-Straße 6
D-08523 Plauen
Tel:  +49 37 41 - 42 30 - 0
Fax:  +49 37 41 - 42 30 - 19
E-Mail:  plauen@westring-dichtungstechnik.de
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Fr: 8:00 - 14:30 Uhr