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Introduction to internal and external protection measures of planetary reducer

2022-12-17

The rust proof layer of planetary reducer is volatile combustible gas. Open fire is prohibited when opening the sight glass cover. The output shaft end and input shaft end are coated with anti rust layer respectively.

Unless otherwise specified, if the reducer is stored in different dry frost free environments, the warranty period of its internal anti rust material coating system is 6 months, while the warranty period of the protective layer at the free shaft end is 24 months. The warranty period is calculated from the date of delivery service.

planetary gearbox

The reducer must be stored in a covered place, and shall be protected from rain, sunlight, frost and humidity, and shall not be exposed to the open air, otherwise the reducer is easy to produce condensate, which will rust the reducer.

If the reducer is placed in a humid environment or stored for more than 6 months, special rust prevention measures shall be taken, otherwise it is easy to cause rust damage to the reducer. The following types of internal corrosion inhibitors can be used depending on the specific conditions of the lubricating oil or shaft seal:

Internal protection with gear oil

The reducer equipped with splash lubrication system and contact shaft seal can be filled with correct working oil and added to the lower part of the breather valve.

Internal protection with special protective agent

Before the reducer with pressure lubrication system is stored for a long time, the lubricating oil cooling pipeline or non-contact shaft seal shall be filled with protective agent, and the reducer shall operate under no load.

When the reducer is not used for a long time, it is recommended to start the reducer every 3 cycles or more than 1 cycle for a short time (after the output shaft rotates, the position of the input shaft cannot be restored to the original position to change the position of the rolling parts in the bearing).

Clean the surface and apply grease to the shaft seal ring to protect the sealing lip from the protective agent.

Which of the following working conditions should the planetary reducer meet for commissioning and loading?

Proper power has been provided on site, the reducer has been filled with lubricating oil as required, and the rotating and friction parts have been fully wetted.

Relevant testing equipment has been prepared, relevant personnel are qualified, and emergency plans have been formulated.

If commissioning is required, the loading medium is ready and the upstream and downstream equipment are ready.


This is an introduction to the internal and external protection measures of the planetary reducer. If you need a planetary reducer, please consult the Newgear manufacturer.

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