Locking Nuts

Locking nuts are used to mount bearings onto a shaft. They can also be used to install tapered hole bearings onto tapered shaft seats and adapter bushings, as well as to remove bearings from withdrawal sleeves. Additionally, locking nuts are frequently used to secure gears, belt pulleys, and other machine components.

To prevent unintended loosening of locking nuts, they must be secured:

• With a locking device fitted into a keyway on the shaft or in the adapter bushing,
• Or with a locking mechanism integrated into the nut.

SKF locking nuts provide various methods for securing the nut onto a shaft. The locking nuts listed here form the core of the SKF product range. Other locking nuts with different locking methods can be supplied upon request. For more information, please contact SKF.

SKF Industrial Locking Nuts:

• Requires a keyway
• With integrated locking

SKF Precision Locking Nuts:

• With integrated locking

Integrated locking locking nuts reduce shaft costs as they do not require a separate keyway. They also make installation faster and easier as a separate locking device is not needed. However, the loosening torque of these locking nuts requires more attention. For information on loosening torque, refer to the product data sections of various locking nut series.