Cutomized Shaft Sleeve Tungsten Carbide Item Axle Sleeve Irregular Carbide Product Industy Parts

       

Shaft sleeve is a cylindrical mechanical
part on the shaft, which is an integral part of sliding bearing. Generally
speaking, the shaft sleeve and the bearing seat adopt interference fit, and the
shaft adopts clearance fit.

Common breakdown causes

During the long-term operation of the shaft
sleeve, the journal surface will be subjected to the extrusion force of the
expansion sleeve and the composite mechanical force, which will lead to
permanent deformation, and the diameter will be reduced by 0.1 mm ~ 0.3 mm. Then,
the mechanical expansion force can not reach the required tightening force, and
the fit gap between the sleeve and the spindle appears, which causes the wear
of the sleeve.

Latest repair methods

Due to the high value of components,
traditional repair methods are more expensive. With the development of foreign
advanced technologies such as polymer composites, some repair methods with fast
repair and low cost are favored. This method has also been introduced into
China, and the more mature material is fushelan 2211f. The maximum compressive
strength of the material can reach 1200 kg / cm2, and the adhesive force
(overlapping shear tensile test) is 225 kg / cm2 on the smooth steel surface.
So it can be used to repair the wear of large shaft sleeve. And the equipment
does not need large-scale disassembly, saving a lot of manpower and material
resources for the enterprise.