What is the working principle of PWU140 worm gear reducer

The core working principle of PWU140 worm gear reducer is the meshing transmission of "worm driven worm gear" to achieve deceleration and torque amplification.
Core transmission logic

Power input: The motor drives the worm to rotate at high speed, and the helical tooth surface of the worm precisely meshes with the gear teeth of the worm wheel.

Motion conversion: The spiral line of the worm drives the tooth surface of the worm gear, converting the rotational motion of the worm gear into a vertical rotation of the worm gear (with a 90 ° angle between the two axes).

Deceleration and torque increase: Deceleration is achieved by the ratio of the number of worm gear heads to the number of worm gear teeth. The transmission ratio is equal to the number of worm gear teeth divided by the number of worm gear heads (PWU140 commonly has 1-4 heads, with a wide range of reduction ratios). At the same time as the speed decreases, the output torque is proportionally amplified (torque is approximately proportional to the transmission ratio).

Key characteristic support

Mesh method: Adopting the planar secondary enveloping process, the tooth surface contact area is large, the transmission is smooth, and the load-bearing capacity is strong.

Power transmission: relies on the dynamic pressure oil film between the tooth surfaces to reduce friction, ensuring efficient transmission while reducing wear.