Precision locking nuts are designed to provide adjustment capability, preload, and fixed bearings for spindles and other rotating mechanical components. These nuts can accurately set the pre position of the bearing
Tight force, able to withstand axial loads very firmly without loosening. Therefore, nuts can bear very high loads.
All precision locking nuts can provide locking and anti loosening functions using their own parts, without the need for any other components, stop rings, or additional mechanical processing. Different series
The locking nuts used also have different anti loosening methods.
The axial deflection of each locking nut is extremely small, allowing for precise assembly and uniform force distribution on bearings and other components. Excellent thread fitting accuracy enables the screw
Repeated assembly (tightening) and disassembly (loosening) of the mother have become possible.
In order to maximize the load capacity of the lock nut, the matching thread must have both extremely high quality and appropriate strength. The specification table lists thread accuracy based on ISO6g or higher
(4h is suitable for high-precision applications such as spindles) and rated static load and loosening torque of 690N/mm2 (10000PSI) material strength. Additionally, it is necessary to verify the tooth profile tolerance and
And the surface roughness of the mating surface (i.e. threaded surface) should not exceed 0.8 μ mRa as much as possible
Lock nut design
The precision nut is made of high-strength alloy steel and has a hardness of 28 to 32HRC after heat treatment. The heat treatment process increases the strength of the material and gives it a high
Elasticity, able to withstand severe impacts. The locking nut adopts precision machined threads with a tolerance grade of ISO 6H
The design structure of NMAN series locking nuts is simple, without locking copper pins, and the cost is relatively low, suitable for some ordinary locks that do not require high pre tightening force. It can be used in pairs for overlapping,
It can achieve good anti loosening effect. The tolerance should be in accordance with ISO 6H, and the aperture size should be between 10 and 200MM.