What are the technical requirements for the driving bevel gear? The material is 18CrMnTi
5, thread hardness is not higher than HRC35; (if the end has external thread, hardness is very important, practical experience proved, such as high hardness, easy to break)6, other (no note, marking, marking, matching number, etc.)Finally, I note, although 18CrMnTi is low carbon steel and carburization only on the surface, but due to the presence of Mn and Ti alloy elements during quenching, the core hardness or have increased, but never more than HRC45.
The following is my answer:1, to sharp edges, burrs; (must be, carburizing, quenching hardness, grinding difficult)2, carburizing depth of 1.1 + 0.17, tooth surface hardness HRC58-62, heart hardness HRC30-42, hardness of a piece of not more than HRC3;3. Inspection of the general gauge for splines; (with spline)4 pairs of gear gap should be 0.15-0.2, the same pair of gear backlash can not exceed 0.1, contact imprinted distribution in the pitch cone, allowing for spot like, contact length of not less than 60% teeth width, height of not less than 50% of the tooth height;
Sigh, really smatter is low carbon steel, 18CrMnTi, gear traditional craft is carburized ah, no carbon where high hardness.
