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How to solve the problem of early pitting of reducer?
Nov 12, 2018


Pitting must be related to lubricating oil, and it must be closely related to the material of the reducer. Usually, there will be some rules in the process of using. Another point is that the local overload is caused by the poor contact of gears. The local overload of gears makes the actual contact stress greatly exceed the allowable contact stress of gear materials. Some gears can not reach full tooth length contact or only contact at one end of the tooth, even diagonal contact.

I. Influence of materials and processing specifications

Correct selection of gear material, matching of load and hardness of heat treatment are also the causes of early pitting corrosion.

II, the impact of lubricants

Because of the unreasonable lubrication of gears and improper selection of lubricants, the cause of early pitting is also affected. The way to prevent early pitting of gear reducer is:

(1) reasonable lubrication of gear reducer transmission and selection of suitable lubricant.

(2) improve the gear installation accuracy of the reducer and ensure the contact accuracy of the gear.

For central drive reducer, if not well investigated during assembly and installation, there may be asynchronism between left and right transmission and poor load sharing effect. In this case, one side transmission gear may not bear the load, while the other side transmission gear may be overloaded (up to twice the design load), which is very good. It is easy to cause progressive pitting on the tooth surface.


Hangzhou starred-river machinery co., Ltd


Contact: Irene Yu

Tel: +86-571-89988755

Fax: +86-571-89988775

Mob: +86-18257963886

Email: 802@china-sr.com


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