What is the difference between gear tooth surface strength and bending strength, and what is the basis for selecting products?

common problem:

What is the difference between gear tooth surface strength and bending strength, and what is the basis for selecting products?

Reply:

1. Definition of gear tooth surface strength and bending strength:

Bending strength:

It is the strength of the tooth that transmits the power against the breaking of the tooth at the root of the tooth due to the bending force.

Tooth surface strength:

It is the anti-friction strength of the tooth surface of the meshing gear teeth in repeated contact.

2. Which strength is the basis for selecting gears?

Except for those that are less frequently usedgear, In the case of manual gears and low-speed meshing gears, it may be selected only by bending strength.Ultimately, it should be set

The planner decides for himself.

Under normal circumstances, the strength of the gear should generally be considered from the two aspects of bending and tooth surface strength.If you have any unclear points or related processing needs, you can consult EP free of charge.