Does the material and processing procedure of the coupling directly affect its use?

CouplingDoes the material and processing procedure directly affect its service life?
Whether it is a manufacturer or a customer should know, then we analyze from the following points:
For example: cross universal coupling and its components: fork, cross bag, spline shaft, sleeve and others.
XNUMX. His fork is a casting, and the casting must meet the following requirements:
1. The mechanical properties of castings should meet the following requirements: b ≥686N/mm; s≥539 N/mm; AK≥31J.
2. Castings must not have defects such as sand inclusions, pores, shrinkage and porosity that affect mechanical properties.
3. The casting is annealed and shot blasted.
4. Quenched and tempered HB240-280.
5. Perform heat treatment.
6. G16 dynamic balance.
240. The spline shaft and sleeve need to be quenched and tempered HB 280-XNUMX.
XNUMX. Assembly technology and requirements:
1. When assembling, remove burrs and clean all parts
2. When assembling, it is necessary to ensure that the center lines of the two welded fork bearing holes in the middle are on the same plane, and the allowable difference shall not exceed 1°
3 After the coupling is assembled, the spline pair should slide freely and the joint should rotate flexibly
4. After assembling, clean the surface, except for the flange end face and the end face key with anti-rust grease, brush the anti-rust primer once and spray paint (no paint).
5. When packaging, it should be leveled and clamped.

The above information is fromProvided by Botou XINLAN Coupling Co., Ltd.