Oil seal OS-BG11
OS-BG11
Description
- Metal and rubber OD, ribbed
- Spring loaded sealing lip
- Protective lip against entry of contamination from outside (dust, dirt,...)
Special features
- Combines the advantages of metal and elastomer OD:
- Very fi rm and exact fi t inside the housing due to metal-metal interference fi t
- Reliable static sealing inside housing
- Compensation of diff erent thermal expansion
- Modern sealing lip design for high dynamic sealing action
- Effi cient protection against air side contaminations
Applications e.g.:
- Mechanical engineering
- Machine tools
- Drive systems
Materials
Standard material
| Elastomer | NBR 70 black |
| Spring | Spring steel according to DIN EN 10270-1 |
| Metal case | Plaatstaal conform DIN EN 10139 |
Special materials
| Elastomer | FKM |
| Silicone | |
| ACM | |
| HNBR | |
| CR | |
| EPDM | |
| Spring | Stainless steel 1.4301 |
| Metal case | Stainless steel 1.4301 |
Application parameters
For the standard materials combination
| Temperature | -40°C to +100°C |
| Pressure | depressurized, max. 0.05 MPa |
| Shaft speed | acc. to chart in „Operating parameters for rotary shaft seals“ |
| Media | Mineral oil based lubricants, synthetic lubricants |
When synthetic lubricants are used for which there is no empirical experience, test the compatibility in the laboratory or - better even - in practical trials. The operating temperature should not exceed 80°C.
Design information
Shaft
| Tolerance | ISO h11 |
| Hardness | min. 45 HRC |
| Roughness | Ra = 0,2 - 0,8 μm |
| Rz | 1-5 μm |
| Rmax | ≤ 6,3 μm |
| Surface finish | free of orientation (lead free) |
Housing bore
| Tolerance | ISO H8 |
| Roughness | Ra = 1,6 - 6,3 μm |
| Rz | = 10 - 20 μm |
| Rmax | ≤ 25 μm |
Installation
Please read our installation instructions.
