VR

Description

VA is a standard rubber facial effect V’Ring composed of a flat rear face.

* Excellent chemical compatibility and wide temperature range, depending on the type of material chosen
* Low friction
* Good elasticity

 

Application

Electric motors
Power transmissions
Bearing protections

Materials

Nitrile Rubber (NBR) 60 – 70 Shore A
Fluoroelastomer (FKM) 60 – 70 Shore A

TECHNICAL DATA

TECHNICAL DATA

Temperature -30°C/+200°C
Pressure None 0 MPa
Speed 10 m/s
Medias None Mineral hydraulic oils

MATERIALS

NBR

Nitrile rubber (NBR) is the general term for acrylonitrile-butadiene copolymer. The ACN content can vary between 18% and 50%. While the acrylonitrile content is important, the resistance to oil and fuel is more so. Conversely, the elasticity and compression set are not as good. The NBR has good mechanical properties and good wear resistance. However, its resistance to atmospheric agents and the ozone is relatively low.

Chemical resistance Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel)
Mineral oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Diluted acids, low-temperature alkaline and saline solutions
Water (up to +100°C max)
Compatibility issue Fuels with high aromatic content
Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichlorethylene)
Polar solvents (ketone, acetone, acetic acid, ethylene-ester)
Strong acids
Glycol-based brake fluids
Atmospheric and ozone agents
Temperature range -25°C/+100°C

FKM (Fluorinated Rubber)

Depending on their structure and fluorine content, the chemical resistance and resistance to the cold in fluororubbers can vary. This FKM-based rubber is very often used for high-temperature hydraulics and pneumatics, for industrial valves, injection/fuel systems, motor seals and high-vacuum systems.

Chemical resistance Mineral oils and greases, ASTM n°1, IRM 902 and IRM 903 oils.
Fire-resistant liquids (HFD)
Silicone oils and greases
Mineral and vegetable oils and greases
Aliphatic hydrocarbons (propane, butane, petroleum)
Aromatic hydrocarbons (benzene, toluene)
Chlorinated hydrocarbons (trichlorethylene)
Fuel (including high alcohol content)
Atmospheric and ozone agents
Compatibility issue Glycol-based brake fluids
Ammonia gas
Organic acids with a low molecular weight (formic and acetic acids)
Temperature range -20°C / +200°C (short-term peak at +230°C)
-40°C / +200°C with particular FKMs

DIMENSION

Itemd1Usable Shaft DiameterBd2d3
VR 3A32.7 - 3.52.5d1 + 1d1 + 4
VR 4A43.5 - 4.53d1 + 1d1 + 6
VR5A54.5 - 5.53d1 + 1d1 + 6
VR 6A65.5 - 6.53d1 + 1d1 + 6
VR7A76.5 - 7.53d1 + 1d1 + 6
VR8A87.5 - 8.53d1 + 1d1 + 6
VR 10A109.5 - 11.54.5d1 + 2d1 + 9
VR 12A1211.5 - 12.54.5d1 + 2d1 + 9
VR 13A1312.5 - 13.54.5d1 + 2d1 + 9
VR 14A1413.5 - 15.54.5d1 + 2d1 + 9
VR 16A1615.5 - 17.54.5d1 + 2d1 + 9
VR 18A1817.5 - 194.5d1 + 2d1 + 9
VR 20A2019 - 216d1 + 3d1 + 12
VR 22A2221 -246d1 + 3d1 + 12
VR 25A2524 - 276d1 + 3d1 + 12
VR 28A2827 - 296d1 + 3d1 + 12
VR 30A3029 - 316d1 + 3d1 + 12
VR 32A 3231 -336d1 + 3d1 + 12
VR 35A 3533 - 366d1 + 3d1 + 12
VR 38A 3736 -386d1 + 3d1 + 12
VR 40A 4038 - 437d1 + 3d1 + 15
VR 45A 4543 - 487d1 + 3d1 + 15
VR 50A 5048 - 537d1 + 3d1 + 15
VR 55A 5553 - 587d1 + 3d1 + 15
VR 60A 6058 - 637d1 + 3d1 + 15
VR 65A 6563 - 687d1 + 3d1 + 15
VR 70A 7068 - 739d1 + 4d1 + 18
VR 75A 7573 - 789d1 + 4d1 + 18
VR 80A8078 - 839d1 + 4d1 + 18
VR 85A 8583 -889d1 + 4d1 + 18
VR 90A 9088 - 939d1 + 4d1 + 18
VR 95A 9593 - 989d1 + 4d1 + 18
VR100A10098 -1059d1 + 4d1 + 18
VR110A 110105 - 11510.5d1 + 4d1 + 21
VR120A 120115 - 12510.5d1 + 4d1 + 21
VR130A 130125 - 13510.5d1 + 4d1 + 21
VR140A 140135 - 14510.5d1 + 4d1 + 21
VR150A 150145 - 15510.5d1 + 4d1 + 21
VR160A 160155 - 16512d1 + 5d1 + 24
VR170A 170165 - 17512d1 + 5d1 + 24
VR 180A 180175 - 18512d1 + 5d1 + 24
VR 190A 190185 - 19512d1 + 5d1 + 24
VR 199A 199195 - 21012d1 + 5d1 + 24
VR 200A 200190 - 21020d1 + 10d1 + 45
VR 220A 220210 - 23520d1 + 10d1 + 45
VR 250A 250235 - 26520d1 + 10d1 + 45
VR 275A 275265 - 29020d1 + 10d1 + 45
VR 300A 300290 - 31020d1 + 10d1 + 45
VR 325A 325310 - 33520d1 + 10d1 + 45
VR 350A 350335 - 36520d1 + 10d1 + 45
VR 375A 375365 - 39020d1 + 10d1 + 45
VR 400A 400390 - 43020d1 + 10d1 + 45
VR 450A 450430 - 48020d1 + 10d1 + 45
VR 500A 500480 - 53020d1 + 10d1 + 45
VR 550A 550530 - 58020d1 + 10d1 + 45
VR 600A 600580 - 63020d1 + 10d1 + 45
VR 650A 650630 - 70520d1 + 10d1 + 45
VR 700A 700665 - 70520d1 + 10d1 + 45
VR 725A725705 - 74520d1 + 10d1 + 45
VR 750A750745 - 78520d1 + 10d1 + 45
VR 800A800785 - 83020d1 + 10d1 + 45
VR 850A850830 - 87520d1 + 10d1 + 45
VR 900A900875 - 92020d1 + 10d1 + 45
VR 950A950920 - 96520d1 + 10d1 + 45
VR 1000A1000965 - 101520d1 + 10d1 + 45
VR 1050A10501015 - 106520d1 + 10d1 + 45
VR 1100A11001065 - 111520d1 + 10d1 + 45
VR 1150A11501115 - 116520d1 + 10d1 + 45
VR 1200A12001165 - 121520d1 + 10d1 + 45
VR 1250A12501215 - 127020d1 + 10d1 + 45
VR 1300A13001270 - 137020d1 + 10d1 + 45
VR 1350A13501320 - 137020d1 + 10d1 + 45
VR 1400A14001370 - 142020d1 + 10d1 + 45
VR 1450A14501420 - 147020d1 + 10d1 + 45
VR 1500A15001470 - 152020d1 + 10d1 + 45
VR 1550A15501520 - 157020d1 + 10d1 + 45
VR 1600A16001570 - 162020d1 + 10d1 + 45
VR 1650A16501620 - 167020d1 + 10d1 + 45
VR 1700A17001670 - 172020d1 + 10d1 + 45
VR 1750A17501720 - 177020d1 + 10d1 + 10
VR 1800A18001770 - 182020d1 + 10d1 + 10
VR 1850A18501820 - 187020d1 + 10d1 + 10
VR 1900A19001870 - 192020d1 + 10d1 + 10
VR 1950A19501920 - 197020d1 + 10d1 + 10
VR 2000A20001970 - 202020d1 + 10d1 + 10