Gear failure index

7.0 Crossed helical gears

Click on photograph to enlarge
	Figure 7 A typical tooth wear failure of a pair of crossed helical gears
Main Characteristics
Cause
Note	Crossed helical gears operate with nominally a point contact and with substantial continuous sliding. They therefore have limited load capacity and are difficult to lubricate. Both gears must have a very high standard of surface finish for successful operation and the use of anti wear additives in the lubricating oil can be helpful.
Possible Confusion with Other Types of Damage
Comment

Services Index
Site Map
Home page