Model: B2 (formerly DIN3760 B type)
Material: Simrit 72 NBR 902

1. Features
OD: metal skeleton
Metal inserts: spring-loaded sealing lip
2. Materials

Simrit 72 NBR 902:
Simrit72 NBR902: hardness of 72 Shore A NBR
Metal and metal cylindrical plug: DIN1624 low-carbon steel
Spring: DIN17223 spring steel
3. Operating conditions

Media: mineral oils, synthetic oils, grease
T: -40 ℃ ~ + 100 ℃, short-term up to + 120 ℃
v: See the sample diagram on page 4
p: to 0.05MPa (0.5bar) maximum permissible value of other operating conditions

4. Advantages

Standard models seal widely used in various fields of industry
For large equipment and coarse press-fit mounting cavity bore, but a limited role in sealing the outer medium to low viscosity and gaseous media.
5. cavity and machining standards

Axis: Tolerance: ISO h 11
    Concentricity: IT 8
    Roughness R a = 0,2 - 0,8 μm
        R z = 1,0 - 5,0 μm
        R max = <6,3 μm
    Hardness: 45-60 HRC
    Finish: non oriented, preferably by plunge grinding
Cavity: Tolerance: ISO H8
    Roughness: R z = 6,3 - 16 μm

6. Install
Press DIN3760 regulations, careful installation is to ensure a good seal function prerequisite

¢ d1 shaft diameter size range
B2U: 10mm ~ 290mm
B2USL: 35mm ~ 180mm
B2: 12mm ~ 710mm
B2USL: 25mm ~ 185mm