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Wenling Juli Gear Co., Ltd.

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Difference between bevel gear and helical gear

2022-08-08 16:55:57
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In the processing industry, every kind of mechanical equipment can not be separated from the assistance of gears. In the field of gears, there are also many classifications. Bevel gears and helical gears are mostly used in daily use. What is the difference between them? What are the characteristics of each? These are also some knowledge points that users should master.



Let's first understand what bevel gear is. In general machinery, the angle of intersection between the two shafts of bevel gear is equal to 90 °. However, this is not a necessary requirement, because it is not equal to 90 °. Bevel gear is usually used to transfer the motion and power between two intersecting axes. It is similar to cylindrical gear, and the cone has a large end and a small end. The circles corresponding to the large end can be called graduation circles. The radius of this circle is r, and the addendum circle, the root circle and the base circle. The movement of a pair of bevel gears is equivalent to the pure rolling movement of a pair of pitch cones. Its work efficiency is very high and can bring good benefits to the enterprise. Helical gear is a common part often used in mechanical transmission. Helical gears can be divided into involute helical gear reducer and helical gear worm gear reducer. Therefore, in terms of their nature of use, bevel gears are gears used to transmit motion and power between two orthogonal axes. The helical gear is a reduction transmission device. Although there is a difference of one word between the two, their uses are also very different. This should be noted. According to their different characteristics and these differences, the intersection angle between the two shafts of the bevel gear is equal to or not equal to 90 °. The helical gear has the advantages of small volume, light weight, large transmission torque, stable starting, fine transmission ratio and classification, and it is made of high-strength alloy steel with surface carburizing and hardening treatment, strong bearing capacity and durable. In practical application, it has the characteristics of stable transmission, low impact, vibration and noise. It is widely used in high-speed and heavy-duty occasions. And can be arbitrarily connected and selected according to the user's requirements.


Spiral bevel gears used in our processing enterprises usually have high transmission efficiency, stable transmission ratio, stable and smooth transmission, reliable operation, compact structure, energy saving and material saving, large arc overlap coefficient, high bearing capacity, space saving, wear resistance, long service life and low noise. The helical gear is not a complete helical gear. Helical gear is the meshing mode of two helical gears. Ordinary spur gear will mesh along the tooth width at the same time, which will produce impact vibration noise and unstable transmission. So we can choose the right products according to our own needs.


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