Lock nuts with integral locking

  • KMFE Metric lock nut with locking screw
  • KMK Metric locknut with integral locking device
  • Locknuts with integral locking function reduce the cost of the shaft as no keyway is required. Installation is faster and easier, as no separate locking device is required.
  • However, the loosening torque of these locknuts requires more attention. For information on the loosening torque, please refer to the product data section of the various locknut series.

Features and Benefits of Lock nuts with integral locking

  • Locknuts with metric thread with integral locking device
  • KMK locknuts with integral locking are designed for positioning radial bearings in less demanding applications. They reduce the cost of the shaft, as no keyway is required. Mounting with integral set screws is quick and easy, and no separate locking device is required.
  • KMK locknuts have a threaded steel insert in the bore that acts as a pressure plate when the set screw through the body of the locknut is tightened.
  • No keyway required–Lock nuts with integral locking
  • Simple and robust locking suitable for the intended application
  • Reusable–Lock nuts with integral locking
  • Cost-effective–Lock nuts with integral locking
  • Suitable for threads M 10×0.75 to M 100×2 (sizes 0 to 20)


Loads are defined by their direction. Loads perpendicular to the shaft are called radial loads and loads parallel to the shaft are called axial (thrust) loads.

DGBB can carry axial loads in both directions, whereas angular contact ball bearings can only carry axial loads in one direction.

  • Seals and shields provide additional protection for the bearing components and help to improve and maintain lubrication.
  • In terms of sealing performance, sealed bearings rank best, followed by shielded bearings and finally open bearings.

Deep groove ball bearings are available in a large number of sizes with different seals, shields, cages, and greases.

Successful mounting is critical to the life cycle of your bearing. Proper bearing dismounting can safeguard other machine components and maintenance workers.

The bearing is at the heart of all rotating equipment, and the condition of the bearing often reflects how well a machine is running. Learn more about bearing damage and bearing failure – and how to prevent it.

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