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Why are helical gears better than spur gears?
Have you noticed that gear components in high-end automotive gearmotor, elevators, high-precision instruments, planetary speed reducer; and the helical gearboxes（WK/WR/WF/WS） produced by our WUMA reducer company almost always use helical gears, rathe...
Dec. 25. 2025 -
What causes gear overheating and wear in a gearbox?
After investigating this issue, the technicians at ZHEJIANG WUMA DRIVE CO.,LTD found four common causes: 1. Poor tooth surface roughness. Poor tooth surface roughness causes direct contact or collision between the high points of the gear teeth ...
Dec. 22. 2025 -
What type of lubricating oil should be used for different gearbox?
Hello everyone, this is Bella from ZHEJIANG WUMA DRIVE CO.,LTD. We have more than 30 years of experience in production gearboxes and 25 years of export experience in the gearbox. Last week, I introduced how to change the lubricating oil in a WMRV wor...
Dec. 22. 2025 -
How to Adjust Worm Gear Clearance
The meshing gap (i.e., tooth side clearance) of the worm gear is a key parameter to ensure the stability of transmission and reduce shock and noise. If it is too small, it will aggravate wear, heat and even jamming. The adjustment method needs to be ...
Dec. 22. 2025 -
A Detailed Explanation of the Core Differences Between Gearboxes and Reducers: From Principles and Design to Practical Applications
In the field of mechanical transmission, the word ‘gearbox’ and ‘reducer’ are frequently used, but they have different technical connotations and application. Understanding these differences is important for correct equipment ...
Dec. 20. 2025 -
How to Choose Gear Heat Treatment? Five Heat Treatment Processes Explained in One Article
Hard tooth surfaces and a tough core – these are the standards for good gears. Heat treatment is the magic to achieve this. Choosing the right process makes a world of difference in performance and lifespan. In the production of worm gears (WMR...
Dec. 20. 2025 -
What’s going on if you use inappropriate oil into gearbox?
The use of inappropriate oil can cause abnormal noises from the gearbox, rapid temperature rise and long-term high-temperature operation, seriously affecting the service life of gearbox. Adding lubricating oil into the gearbox is to prevent the mutua...
Dec. 20. 2025 -
The Importance of Gear Backlash: Why Must Gear Transmission Systems Allow for Backlash?
In the design and manufacture of gear transmission systems, backlash is a crucial engineering parameter. It refers to the minute gap between the tooth profiles of meshing gears. Whether it's a planetary gear reducer, a worm gear reducer, or a paralle...
Dec. 17. 2025 -
Common Faults and Solutions of Worm Gear Reducers
1.The composition and operating principle of worm gear reducer The worm gear reducer is an industrial device that uses gears to reduce the speed of a motor to a required speed while providing a relatively large torque. RV series worm gear r...
Dec. 17. 2025 -
why use copper to make worm wheel？
Worm wheel and worm shaft are commonly used transmission components in our worm gearbox. We often see that the worm wheel is made of copper, while the worm is made of steel. Many people might find this strange: copper is more expensive and not as har...
Dec. 13. 2025 -
The Principle and Characteristics of Worm Gear Drives
As one of the core products of Zhejiang Wuma Drive Co., Ltd., worm gear drives play a vital role in various industrial transmission systems. Worm gears are commonly used components in mechanical transmissions. Their working principle is based on the ...
Dec. 13. 2025 -
The difference between service factor and safety factor
The words "service factor" and "safety factor" are often mentioned in the maintenance and selection of gearboxes. The words are similar meaning in gearboxes usage and selection, but their meanings are completely different. Understanding their meaning...
Dec. 13. 2025
