The pre-load of duplex bearing is a key parameter. Its accuracy directly affects the performance of duplex bearings as well as host. When doing the original installation, bearing will have a certain pre-deformation. So the main role of pre-load is that making the bearings skips the initial large deformation stage. It significantly increases the support rigidity. In addition, the duplex bearings are used in pension bearing system which needs higher accuracy. The imposition of pre-load could meet this requirement.
　　 Duplex bearing per-load measuring instrument is the specialized instrument for pre-load measurement. The instrument can measure the per-load of duplex bearings quantitatively and accurately, ensure the rigidity; precision and speed of bearing are in an optimization status.
　　 This instrument is applicable to the production workshop of military bearing and angular contact bearings, related research units and host matching units.

Technical Specification

Usable range:

bore diameter: φ10～60mm
outside diameter: ＜φ100mm
height of parts: ＜120mm

Measuring range of per-load: Fa=20～400N
Measuring error of pre-load: ±5%Fa