Model: B1 (formerly DIN3760 B type)
Material: Simrit 72 NBR 902

1. Features
OD: metal skeleton
Spring-loaded sealing lip
2. Materials
Simrit 72 NBR 902:
Hardness of 72 Shore A NBR
Metal skeleton: DIN1624 low-carbon steel
Spring: DIN17223 spring steel
3. Operating conditions
(See: Areas of Influence) Media: mineral oils, synthetic oils, grease
T: -40 ℃ ~ + 100 ℃, short-term up to + 120 ℃
v: See sample 4 Figure
p: to 0.05MPa (0.5bar) maximum permissible value of other operating conditions

4. Advantages

Widely used in various industrial fields
Metal cylindrical bore the seal ring mounted in the cavity of the particularly strong and precise, but limited role in sealing the outer medium to low viscosity and gaseous media.
The outer coating is recommended when you quit sealant installation.
5. cavity and machining standards
(See: Sealing Mechanism and Surface speed of shaft)
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: no to the state, preferably with a cross feed 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
B1U: 5mm ~ 260mm
B1USL: 1mm ~ 290mm
B1: 7mm ~ 500mm
B1USL: 12mm ~ 170mm