gear defect

In the process of gear transmission, the maximum shear stress caused by repeated rolling sliding contact leads to the plastic

Production process of gear hub blank Electric furnace smelting → die casting → forging → annealing → peeling → ultrasonic

When the gear system has tooth profile error, tooth surface roughness is too high, the lubricating oil film is too

1.Tear Main cause 1) Uneven material of gear blank 2) Improper heat treatment of gear blank 3) Chip accretion due

1.Wear The wear of tooth surface is caused by metal particles, dust and sand entering into the working surface of

Pitting is a common damage form of closed gear transmission, which usually occurs on the tooth root surface near the

Tooth breakage is the most common fault of gear. The fracture of gear teeth usually occurs at the root of

(1) Introduction to various tests It is difficult to distinguish the white spot defects of gears by naked eyes. It

Feature: flange crack usually occurs at the root between two adjacent teeth. Some of the web cracks are caused by

Impact defects are generally caused by heavy loads caused by rough handling. It usually occurs at or near the root

Main cause The maximum error of uneven rotation in each rotation of the gear hobbing machine table is too large:

Features: the stress is repeated alternation; the crack source is usually the stress concentration on the surface of gear, such

Fatigue is usually caused by repeated and excessive load, which is often broken at or near the root of gear.

Main cause The deviation between the vertical feed direction of hob and the axis direction of inner hole of gear

Main cause The center of the inner hole of the workpiece does not coincide with the turning center of the

The pitting point is a kind of fatigue defect, which occurs when small particles on the gear fall off from

Main cause 1) Incorrect adjustment of split exchange gear 2) Wrong selection of hob 3) Incorrect workpiece blank size 4)

1.Edge of tooth surface Main cause The profile error of hob is too large or the tooth splitting is powerless.