Locking means for the axial positioning precision bearings on the shaft, it should be made ​​very sophisticated, and the axis of the ring to provide uniform support for the entire circumference, the locking means should also be able to facilitate installation and removal, and the support surface relative to the thread wide manufacturing tolerances, industrial design with lock washer nut does not apply to precision bearings, because he may cause deformation of the shaft or axis of rotation changes, so SKF has developed a full range of precision locknuts, in accordance with the very small manufacturing tolerances, these easy to install the device can accurately and efficiently bearings and other components will be fixed on the shaft, the technical and economic aspects of the application meets the requirements of machine tools, precision locknuts belongs to SKF standard part of the product.

      SKF production with locking pins precision locknuts

      SKF produce two different types of precision with a locking pin locking nut, KMT and KMTA, the use of these two locking nut bearings and other components can be simply and reliably fixed to the shaft in the axial direction, and to ensure accurate, they are design is unique in that three evenly spaced along the circumference sintered steel locking pins, the pins through the hexagon head screw thread on the pressure in the shaft to prevent rotation of the nut, this design is easy to install, simple structure, no additional axes locking washer groove or step, flathead screws and the locking pin into the axis of the thread angle of the same large surface, the locking pin and the end of the processing threads in a process, so it has the same thread, so that when tighten the grub screws will not be deformed when the locking pin, the locking structure is threaded lock nut and shaft surface between the screw and the locking pin and shaft friction surfaces get full, when the nut is locked, the thread surface will not eliminate axial load, axial force by locknut threaded surface exposed.

      KMT and KMTA Another advantage of the lock nut can be adjusted, three equally spaced locking pin angle of the nut relative to the shaft positioning accuracy which can be used to adjust the positioning of the shaft other inaccuracies or deviating member, Since the locking pin is not deformed, so no matter how frequently mounting and dismounting can be maintained precision locknuts.