| 摘要 |
A supporting disk for the supporting disk bearing arrangement of an open-end spinning rotor comprises a base body and a ring-shaped fitting, whose outer circumference serves as a bearing surface for a shaft of the open-end spinning rotor. The base body has a supporting ring, the fitting being joined to its outer circumference. The fitting and the supporting ring are each made of plastic. The modulus of elasticity of the plastic of the supporting ring is at least ten times that of the modulus of the plastic of the fitting.
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