Oil seal OS-PA32
OS-PA32
Description
- Pressure loadable radial shaft seal
- Metal OD
- Sealing lip made of PTFE
- Sealing lip with elastomer washer, clamped between 2 metal cases
Special features
- Permits high shaft speeds
- High thermal resistance
- High chemical resistance
- Pressure loadable
- Applicable with insufficient lubrication and dry running
- Very low friction coeffi cient, stick-slip free running
- Non-moulded processing
- Inside diameter from 31mm possible
- Small runs without mould cost possible
- Short delivery time
- Very firm and exact fit inside the housing due to metal-metal interference fit
- Be careful when using the product in connection with light metal housings, housings with increased surface roughness and applications with overpressure: Apply sealing aid to the outside diameter if necessary.
Applications e.g.:
- Chemical industry
- Mechanical and apparatus engineering
- Drive systems
Materials
Standard material
| Sealing lip | PTFE / glass fi bre / MoS2 |
| Metal case | Stainless steel 1.4404 (AISI316L) |
| Elastomer washer | FKM |
Special materials
| Sealing lip | PTFE / carbon graphite |
| Metal case | Standard steel |
| Elastomer washer | Other elastomers on request |
Application parameters
For the standard materials combination
| Temperature | -90°C to +250°C |
| Pressure | max. 2,5 MPa |
| Shaft speed | max. 40m/s |
| Media | Mineral oil based lubricants, synthetic lubricants, many acids and lyes, solvents, water |
The diff erent permitted maximum values should always be seen in connection with all application parameters. The total load on the seal is the combination of individual values.
Design information
Shaft
| Tolerance | ISO h11 |
| Hardness | min. 50 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 = 0.8 - 3.2 μm |
| Rz | = 6.3 - 16 μm |
| Rmax | ≤ 16 μm |
Installation
Please read our installation instructions.
