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V-Rings are mainly used in combination with other types of seals such as shaft seals and they are used as an upstream sealing element in bearing.
| Profile | Design | Material | Hardness (Shore A) | color | Temperature (°C)/ temporarily |
|---|---|---|---|---|---|
 |
VA | NBR | 60 | black | -30 to +100/+120 |
|
VA | FKM | 60 | brown | -20 to +200 |
 |
VS | NBR | 60 | black | -30 to +100/+120 |
|
VS | FKM | 60 | brown | -20 to +200 |
 |
VL | NBR | 60 | black | -30 to +100/+120 |
|
VL | FKM | 60 | brown | -20 to +200 |
 |
VE | NBR | 60 | black | -30 to +100/+120 |
|
VE | FKM | 60 | brown | -20 to +200 |
 |
VLX | NBR | 60 | black | -30 to +100/+120 |
|
VLX | FKM | 60 | brown | -20 to +200 |
 |
VAX | NBR | 60 | black | -30 to +100/+120 |
|
VAX | FKM | 60 | brown | -20 to +200 |
Standard seal types
|
|
|
| VA | VS | VL |
| The most common profile. It has a perpendicular rear face. Wide range of sizes, from 3 to 2020 mm shafts. | With wide body to ensure higher radial force than VA type. Range of sizes from 5 to 210 mm shafts. |
This seal is intended for applications with limited available space. Range of sizes from 135 to 630 mm shafts. |
|
|
|
| VLX | VE | VAX |
| This seal is more compact than VL type, used in confined spaces. Size list available on request. | Heavy duty large diameter seal, used in paper mills and rolling milIs as a dirt/water excluder seal. A standard clamping band can be used to improve axial fixation. | Heavy duty frontseals, designed primarily for large high speed bushing arrangements, used in rolling mill and papermaking machine applications. Range of sizes from 200 mm to over 2000 mm shafts. |
With increasing peripheral speed, the sealing lip is pulled outwards by the centrifugal force. From a certain peripheral speed, the sealing lip lifts entirely off the metallic counter surface. The V-Ring then acts only as a gap seal and flinger.
After overcoming the breakaway torque, the output decreases until they have been reduced at a speed range of 10 to 15 m/s to a minimum. As the flexible sealing lip and the hinge V-Rings compensate the axial run-outs, eccentricity and shaft misalignments.
V-Rings are especially easy to install, can be stretched and, depending on the size, drawn over flanges, flywheels and whole bushing housings without costly extension work.
V-Rings are available in different default cross-sections for various application-specific requirements and spatial situations. The cross-sections of the types A and S vary in shaft diameter, while other designs for the entire diameter range have a cross-sectional size.
| DESIGNATION | Pressure | Temperatur Range | CIRCUMFERENTIaL SPEED | |
|---|---|---|---|---|
| NBR | Construed for pressure-free operation | -40°C +100°C <_ 8 m/s | Axial secured from >_ 8 m/s | Radial secured from >_ 12 m/s |
| FKM | Construed for pressure-free operation | -20°C +200°C <_6.5 m/s | Axial secured from >_ 6.5 m/s | Radial secured from >_ 10 m/s |
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