Standard Locknut
Ball screw lock nut can easily and precisely secure the screw shaft and bearing. It features an anti-loosening mechanism composed of an internal hex head set screw and a mounting plate, which prevents the locking nut from loosening and ensures a firm connection. High-quality locking nuts consistently maintain the desired system preload, guaranteeing the performance and service life of the transmission system.
Features
- Strict Geometric Tolerances: HZMotion lock nuts utilize a unique precision machining process to provide consistently reliable end-face flatness and stable, accurate thread precision.
- High-Quality Raw Materials: Medium and heavy-duty lock nuts are made from 42CrMo material to ensure product performance and service life.
- Standard Sizes: Lock nut products conform to internationally mainstream dimensions, ensuring maximum compatibility and specification coverage.
- Surface treatment: Lock nuts are black-oxide treated by default for rust prevention, with other surface treatment options available.
Illustration of HZMotion lock nut anti-loosening mechanism:
HZMotion lock nut product line includes the following series:
| Model | Illustration: | Coverage: | Features: |
|---|---|---|---|
| NRA |  | M4 - M40 | Radial direction locking Light duty application |
| NR |  | M6 - M40 | Radial direction locking Mid to heavy duty |
| NF |  | M14 - M100 | Hybrid direction locking Mid to heavy duty |
| NK |  | M16 - M80 | Axial direction locking Heavy duty application |
Applications
Automation applications, high-precision small to medium-sized machinery, general-precision small to medium-sized machinery, and heavy-load application scenarios.
Standard Locknut Specific Models
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Standard Locknut
FAQ
Locknuts are used for ball screws, spindles and other applications requiring axial locking and positioning.
The NRA series is made from C45 material, while the NR/NF and NK series use 42CrMo material.
All lock nut threads in the HZMotion series are ISO 4H grade.
There is no fundamental difference in their applications. The NF-type set screw is inclined, with the locking position nearly aligned with the end face. The NR-type set screw is radial, with the locking position located in the middle of the nut’s axial length. When the lock nut has a recessed structure for locking, the NF-type allows easier tightening of the set screw.