xirodur® A500 | The specialist
The xirodur® A500 material is the specialist for high chemical and temperature resistance. In combination with the PEEK cage, this material covers applications with continuous service temperatures from -100°C to +150°C and is particularly resistant to strong acids. In addition, the individual parts of this combination of materials are FDA-compliant. Due to its average wear resistance and higher price, this material should only be selected for such applications.
Typical application areas:
When to use it?
When not to use it?
Tolerances and measurement system:
the tolerances for the inner and outer diameter depend on the installation size. These are often approx. ±0.05mm to the nominal size. The bearing rings are usually injection moulded and naturally have a certain ovality. Therefore, the caliper is used to measure 90° to the injection point (if available) over the entire width of the bearing. The dimensions and tolerances are designed in such a way that they fulfil a slight press-fit by hand when using a H7 holder and h6 shaft. An additional locating spigot using a circlip (shaft) and snap ring (housing) is recommended to prevent axial displacement.
Installation recommendation:
1. Housing (tolerance H7)
2. Front (balls visible)
3. Rear (cage visible)
4. Press-fit the ball bearing, front side first
5. Install shaft (tolerance h6) with chamfer
6. A locating spigot must be provided
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