Universal joint needle roller bearings

XINLANCouplingAnalysis and measurement methods:

(1) Use a feeler gauge to check the total circumferential clearance of the needle roller group.

(2) The deviation of the smallest single inner diameter of the needle roller set is checked with a plug gauge.

(3) Radial runout of the outer ring of the complete set of universal joint needle roller bearings

1) The measurement method of the radial runout of the outer ring of a complete set of universal joint needle roller bearings, the outer ring rotates more than one circle.

2) For W type universal joint needle roller bearings, it is allowed to measure the variation of the outer surface thickness of the outer raceway (Ke), the variation of the diameter of the needle roller group (VDwL) and the variation of the inner diameter of the needle in a single radial plane (VDwp) ) Instead.At this time: Kea=Ke+VDWL+VDwpmaxo

(4) Spot welding cover plate type universal joint needle roller bearing cover plate and outer ring should bear the smallest torque load after welding, use torque test wrench and check with bench vise, special tooling and other auxiliary tools.

(5) Heat treatment quality inspection

1) The surface hardness shall be tested by Vickers hardness tester or Rockwell hardness tester according to JB/T 6050. In case of dispute, the conversion after testing by the Vickers hardness tester shall prevail.

2) The effective hardened layer depth of the raceway surface by carburizing and quenching shall be tested according to GB/T 9450.

3) The evaluation of the metallographic structure of the carburized and quenched hardened layer is in accordance with the provisions of QC/T 262-1999.

4) The microstructure of the outer ring of GCr15 after quenching and tempering is evaluated according to the second level chart of JB/T 1255-2001.

The above is the XINLAN couplinghttp://www.gear-coupling.xyz>为你的分析，希望能为您提供帮助，如有什么问题请联系我们，我们会真诚为您提供服务。