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
|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.
|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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