| 摘要 |
An economical alternative to throw away lock nuts is provided by a retainer that fits to or over a conventionally threaded nut. Splines on the shaft, and resilient fingers on the retainer, are mismatched in number by one, assuring that they interfit with at least one finger blocked by a spline, or closed to it, so that the nut cannot be turned significantly back. The retainer can be easily removed, so that both it and the nut may be reused.
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