Lock Nuts & Spanner Nuts

Bearing lock nuts, sometimes called shaft locknuts or bearing retaining nuts, are utilized to secure bearings onto a shaft and is designed to prevent the loosening of components due to vibration and rotation. Bearing locknuts possess a different appearance from traditional hex lock nuts. Bearing locknuts are typically rounded on the outside with keyed slots. This design requires a special tool called a spanner wrench or socket to be removed or installed. Bearing locknuts are used in a wide variety of applications including the automotive and agriculture industries.

  • Available in stainless steel, alloy steel, and low carbon steel
  • Offered in Metric and Inch sizes
  • Commonly used in conjunction with bearing lock washers and machine keys
  • Visit our Product FAQs to learn more about Retaining Rings & Bearing Lock Nuts
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Lock Nuts & Spanner Nuts

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