WEDI 20/32/7B O型圈

WEDI 20/32/7B O型圈-产品快照

品牌:
型号:
WEDI 20/32/7B
重量:
0.0078 kg

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产品介绍

WEDI 20/32/7B O型圈

Radial rotary shaft seals. NBR (72A), 20,00x32,0x7,0mm, B

Radial rotary shaft seals serve to seal rotating machine components. The mainly consist of a rubber part with a reinforcement plate and a worm spring made of spring steel. Depending on the intended use, there are three basic types: the standard construction forms A, B and C. Materials: NBR (72° Shore A) Temperature range: -30°C to max. +100°C Running speed: Max. 14 m/s Optional: FPM material (Viton) (-20°C to +200°C, running speed max. 37 m/s) -V Special requirements that need special models: •high housing roughness, •high housing thermal expansion, •resistant to pressure, •synthetic oils with special additives, •aggressive media Designs: A / AS: The rubber-elastic external jacket can bridge the gap between thermal expansion and a high degree of roughness in the housing hole. There is no frictional corrosion. Changing the seal frequently prevents damage to the housing hole. Is suited for sealing gaseous or low-viscosity media. The design AS is provided with additional dust lip to safeguard against dirt and corrosion. B / BS: Metallic housing, press in slightly during installation. Requires narrower tolerances of the housing hole, to ensure a seal even at the outer casing. BS design with an additional dust lip against dirt and risk of corrosion. Construction type C/ CS: Metallic housing with reinforcing cap. Sealing and assembly as design B. Used in preference in harsh operating conditions and for larger dimensions. Is less sensitive to assembly errors due to the reinforcing cap. CS design with additional dust lip against dirt and risk of corrosion. AD / BD: The designs AD or BD with two sealing lips are used to seal and separate two media. AO / BO: The designs AO and BO are designed without the garter springs. They are designed only for minor seal cases. All data are to be understood as non-binding reference values! We do not assume liability for any data selection not confirmed in writing. Unless otherwise specified, pressure values refer to liquids from Group II at +20°C.

Technical data Material NBR (72A) Design B Shaft Ø [mm] 20,00 External Ø [mm] 32,0 Width [mm] 7,0 Note RoHs-compliant Weight 7,8 g / pc. Further information GTIN 4050571752958 Customs duty number: 84842000

general industrial hardware & accesories O-rings - Rotary shaft seals Radial rotary shaft seal up to 35 mm, DIN 3760 WEDI 20/32/7B

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