Choose reducer gear oil need to consider those elements!

January 26, 2024

Choose reducer Gear Oil need to consider those elements!

1. This machine has been using this brand of lubricating oil, which is too expensive. Can I exchange it for a cheaper one?

2. I think the selection of lubricating oil for this machine is not good. I would like to upgrade one with better performance and better match the current operating conditions.

3. Most of our reducer requires the use of imported brands of lubricating oil, now to be localized, the same brand of domestic brand lubricating oil can be directly replaced.

Lubricating oil selection of reducer

At present, there are many varieties and brands of oil used by metallurgical enterprises, which can be said to be varied, mainly 46 mechanical oil, industrial closed gear oil, 46# hydraulic oil, oil and grease mixing, etc., in the above examples, some are completely not suitable for the lubrication of gear reducer, such as 46# hydraulic oil, grease mixing, etc., 46# hydraulic oil - generally used in hydraulic systems, Do not advocate the use of reducer, for reducer grease mixing lubrication is more undesirable, but some of our employees called it "leakage prevention, leakage treatment", do not know that after the mixed use of two different kinds of grease, the performance indicators will change, produce sediment, and promote the deterioration of oil, aging, serious lead to gear can not normal lubrication and even damage.

Practice has proved that the use of mechanical oil reducer than the use of medium load industrial gear oil reducer life shortened by about 1 to 2 times, in addition to the use of eliminated low-grade oil is a waste of resources, it can be seen that the selection of reducer oil is very important, according to the current situation, should be unified with GB5903-86 stipulated sulfur and phosphorus type medium load industrial gear oil is better, The oil is basically the same as the internationally renowned high-quality gear oil, in terms of pressure resistance, anti-emulsification, viscosity temperature characteristics, antioxidant and other properties fully meet the needs of the use of metallurgical enterprise equipment reducer, for low-speed and heavy-duty reducer enterprises can also appropriately add some anti-wear agents, For the lubricating oil varieties and viscosity used by the reducer (generally should be in accordance with the manufacturer provided), it is usually calculated according to the contact stress of the tooth surface and the circular speed of the gear section, etc., and can also be performed according to the power of the reducer in accordance with the table reference:

Reducer lubrication method and oil amount

The main lubrication methods of the reducer are as follows:

When 3m/s≤V≤12m/s, oil margin lubrication is used;

When V≥12m/s, use cyclic lubrication;

Large gear and open gear using dry oil jet lubrication.

For the use of oil margin lubrication reducer oil immersion is generally prescribed to dip the gear full tooth height of 2 to 3 is appropriate, when 0.5m/s≤V≤3m/s when the depth of oil immersion is 1/5 of the radius of the gear, for the reducer oil immersion less may cause the tooth surface loss of oil, accelerated wear, but not the more the better, too much oil, will increase the stirring torque of the gear, After more work becomes hot and the oil temperature rises, it will also cause oil leakage everywhere in the reducer, bring many problems to equipment maintenance, and cause pollution to the equipment environment, so a certain amount of lubricating oil should be injected according to the provisions, according to different types of reducer according to the table reference execution:

For the lubrication of the reducer from installation to scrap life plays a decisive role, improper selection of oil or poor lubrication will cause gear damage, shorten the service life of the equipment, equipment operating costs are correspondingly increased, excluding other factors, correct and reasonable lubrication can extend the life of the equipment 1 to 5 times, so in the selection of oil and oil and other aspects we should carefully consider, Ensure the economical, efficient and environmentally friendly operation of the equipment.

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