Ningbo Yokelink Machinery Co.,Limited

Ningbo Yokelink Machinery Co.,Limited

DIN 981 GB812 Industrial Bearing Locknuts ISO4H M4-M65

2025 07/18

 

DIN 981 GB812 Industrial Bearing Locknuts ISO4H M4-M65

 
Yokelink DIN 981 bearing locknuts are bearing accessories for screw drives.  DIN 981 bearing locknuts are used to achieve a defined axial preload in axial angular contact ball bearings for screw drives and axial/radial roller bearings for screw drives.
 
DIN 981 bearing locknuts are also used in other applications where high axial forces must be supported and high axial runout accuracy and rigidity are require
 
DIN 981 bearing locknuts are used where high axial forces must be supported and high axial runout accuracy and rigidity are required, The thread and the axial face of the locknut in contact with the rolling bearing are produced in a single clamping operation. DIN 981 bearing locknuts allows very high axial runout accuracy to be achieved. The available bearing locknuts AM, ZM and ZMA can be used several times if handled correctly.
 
precision locknuts

 

DIN 981 Bearing Locknuts Features:

 
DIN981 lock nut feature
Material: Carbon Steel or Stainless Steel
Thread Tolerance: ISO 4H
Surface Treatment: Alkaline Oxidation (Phosphatizing)
 

DIN 981 Bearing Locknuts Specification:

 
1. Bearing locknuts DIN 981 locking nuts Size:
 
M10*0.75,M12*1.0,M15*1.0,M25*1.5,M55*2.0,M70*2.0...
 
2. Bearing locknuts / DIN 981 Bearing locking nuts type: 
 
KM/F Type Square ,RTR Type Square,RTF Type Square,RTK Type Square,RTA Type Square,RTRN Type Square,RTKM Type Square
 
precision lock nuts drawingprecision lock nuts specification
 
 

The Difference Between DIN 981 Bearing Lock Nuts And Ordinary Nuts

 
Comparison dimensions DIN 981 Bearing Locknuts Ordinary nut
Appearance Round, with grooves/lugs on the outer circumference, suitable for special tools Mostly hexagonal, operated by universal wrench
Thread Fine pitch, anti-loosening design Coarse pitch or fine pitch, anti-loosening requires additional accessories
Function Axial positioning, bearing fixing General connection and tightening
Precision requirements Higher, need to match the bearing installation tolerance Lower precision level
 
 
Buy DIN 981 Bearing Locknuts from Yokelink
 
 
machine  package  lock nut (5)
 
The most secure design is no good when the screw joint breaks down later. Precise analysis of prevailing types of load and properties is therefore very important. This will decide whether locknuts compliant with DIN 981, 6923, 6927 or a self-locking slotted nut with a polyamide ring will ensure the right connection.