Merchandise Description


Item Description

Planar dobule enveloping ring area worm reducer is a new variety of transmission device, which has massive bearing
capacity, large transmission efficiency, compact and reasonable framework.This reducer can be commonly utilised in a range
of transmission equipment deceleration drive, these kinds of as metallurgy, mining, hoisting, chemical market, design
rubber ship and other industries and other mechanical products, ideal for the enter shaft speed is not a lot more than
1500 RPM, the worm shaft can be constructive, reverse path rotation.

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Firm Profile

Xihu (West Lake) Transmission Products Co., Ltd. found HangZhou city, ZHangZhoug, as 1 skilled producer
and exporter of cycloidal pin wheel reducer,worm reducer, equipment reducer, gearbox,AC motor and relative spare
elements, owns wealthy knowledge in this line for numerous years.

We are 1 immediate manufacturing unit, with sophisticated production products, the robust advancement crew and producing
potential to offer good quality products for customers.

Our merchandise widely served to a variety of industries of Metallurgy, Chemical substances, textile,medication,wooden etc. Principal
markets: China, Africa,Australia,Vietnam, Turkey,Japan, Korea, Philippines…

Welcome to question us any concerns, good offer you usually for you for lengthy phrase enterprise.


Q: Are you investing firm or producer?
A: We are manufacturing facility.

Q: How long is your shipping and delivery time?
A: Usually it is 5-10 times if the merchandise are in inventory. or it is 15-20 days if the merchandise are not in stock.

Q: Can we acquire 1 computer of each and every product for high quality testing?
A: Sure, we are happy to accept demo get for high quality testing.

Q:How to choose a gearbox which meets your necessity?
A:You can refer to our catalogue to select the gearbox or we can assist to choose when you supply
the technological details of essential output torque, output velocity and motor parameter and many others.

Q: What details shall we give ahead of positioning a purchase get?
A:a) Type of the gearbox, ratio, input and output type, enter flange, mounting position, and motor informationetc.
b) Housing color.
c) Buy quantity.
d) Other specific specifications.

How to Pick the Correct Worm Shaft

You may be curious to know how to choose the appropriate Worm Shaft. In this write-up, you will learn about worm modules with the exact same pitch diameter, Double-thread worm gears, and Self-locking worm drive. As soon as you have picked the suitable Worm Shaft, you will locate it less complicated to use the tools in your home. There are numerous benefits to deciding on the proper Worm Shaft. Go through on to understand more.
worm shaft

Concave condition

The concave condition of a worm’s shaft is an crucial characteristic for the design and style of a worm gearing. Worm gearings can be located in a wide assortment of shapes, and the standard profile parameters are offered in specialist and agency literature. These parameters are employed in geometry calculations, and a choice of the proper worm gearing for a specific application can be primarily based on these requirements.
The thread profile of a worm is described by the tangent to the axis of its principal cylinder. The enamel are formed in a straight line with a marginally concave shape alongside the sides. It resembles a helical gear, and the profile of the worm alone is straight. This variety of gearing is often used when the number of teeth is greater than a specified restrict.
The geometry of a worm equipment relies upon on the kind and company. In the earliest days, worms ended up created related to simple screw threads, and could be chased on a lathe. Throughout this time, the worm was frequently produced with straight-sided equipment to produce threads in the acme aircraft. Afterwards, grinding methods enhanced the thread finish and diminished distortions resulting from hardening.
When a worm gearing has a number of enamel, the pitch angle is a important parameter. A higher pitch angle will increase effectiveness. If you want to improve the pitch angle with out growing the quantity of enamel, you can replace a worm pair with a various amount of thread begins. The helix angle need to improve even though the middle length remains constant. A higher pitch angle, even so, is almost by no means employed for power transmissions.
The minimum variety of gear tooth relies upon on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is dependent on a identified module value, mx or mn. Generally, more substantial values of m are assigned to greater modules. And a smaller variety of teeth is named a low pitch angle. In case of a lower pitch angle, spiral gearing is used. The pitch angle of the worm equipment is smaller sized than ten degrees.
worm shaft

Numerous-thread worms

Multi-thread worms can be divided into sets of one particular, two, or 4 threads. The ratio is decided by the quantity of threads on each and every established and the variety of tooth on the apparatus. The most widespread worm thread counts are 1,2,4, and 6. To discover out how many threads you have, count the start and stop of every thread and divide by two. Using this method, you will get the right thread count every single time.
The tangent plane of a worm’s pitch profile modifications as the worm moves lengthwise together the thread. The lead angle is greatest at the throat, and decreases on equally sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the deemed level. Therefore, the worm prospects angle, r, is enhanced with decreased inclination and decreases with increasing inclination.
Multi-thread worms are characterised by a consistent leverage amongst the gear area and the worm threads. The ratio of worm-tooth surfaces to the worm’s size varies, which allows the wormgear to be adjusted in the same route. To optimize the equipment contact in between the worm and gear, the tangent connection between the two surfaces is best.
The performance of worm gear drives is mostly dependent on the helix angle of the worm. Several thread worms can boost the effectiveness of the worm gear drive by as significantly as 25 to 50% in contrast to one-thread worms. Worm gears are produced of bronze, which minimizes friction and warmth on the worm’s tooth. A specialised equipment can minimize the worm gears for highest performance.

Double-thread worm gears

In many distinct apps, worm gears are utilised to drive a worm wheel. These gears are unique in that the worm are not able to be reversed by the electrical power utilized to the worm wheel. Simply because of their self-locking homes, they can be utilised to avoid reversing movement, despite the fact that this is not a trusted purpose. Purposes for worm gears contain hoisting gear, elevators, chain blocks, fishing reels, and automotive electrical power steering. Simply because of their compact dimension, these gears are typically utilised in apps with minimal place.
Worm sets typically exhibit much more wear than other types of gears, and this signifies that they need much more minimal speak to designs in new parts. Worm wheel teeth are concave, making it hard to evaluate tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, nevertheless, you can evaluate backlash, a measurement of the spacing between tooth in a equipment. Backlash can differ from 1 worm equipment to yet another, so it is important to examine the backlash at a number of points. If the backlash is diverse in two spots, this suggests that the tooth may possibly have distinct spacing.
One-thread worm gears give high velocity reduction but reduced performance. A multi-thread worm equipment can provide high performance and substantial speed, but this will come with a trade-off in conditions of horsepower. Even so, there are numerous other programs for worm gears. In addition to large-duty purposes, they are frequently utilised in gentle-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they let for a significant pace reduction in one stage.
Stainless-steel worm gears can be utilised in damp environments. The worm gear is not susceptible to rust and is perfect for soaked and damp environments. The worm wheel’s sleek surfaces make cleansing them straightforward. Nonetheless, they do need lubricants. The most typical lubricant for worm gears is mineral oil. This lubricant is created to shield the worm travel.
worm shaft

Self-locking worm push

A self-locking worm push stops the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also attainable but does not include a keeping brake. This type of self-locking worm push is not prone to vibrations, but could rattle if launched. In addition, it may demand an extra brake to hold the platform from moving. A constructive brake may be essential for basic safety.
A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur equipment trains that allow both to interchange positions. In a self-locking worm generate, the driving equipment is constantly engaged and the pushed equipment remains stationary. The drive system locks immediately when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears contain the Machinery’s Handbook.
A self-locking worm drive is not hard to create and has a excellent mechanical gain. In fact, the output of a self-locking worm drive are not able to be backdriven by the enter shaft. DIYers can build a self-locking worm generate by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is drastically less high-priced. Even so, it is important to comprehend that you can only travel 1 worm at a time.
An additional advantage of a self-locking worm travel is the reality that it is not attainable to interchange the input and output shafts. This is a significant reward of using these kinds of a mechanism, as you can achieve substantial gear reduction with no growing the size of the gear box. If you might be contemplating about getting a self-locking worm gear for a specific application, take into account the pursuing ideas to make the correct option.
An enveloping worm gear set is very best for programs demanding substantial accuracy and effectiveness, and least backlash. Its teeth are shaped in different ways, and the worm’s threads are modified to increase surface area make contact with. They are far more high-priced to manufacture than their single-begin counterparts, but this kind is ideal for programs exactly where precision is crucial. The worm generate is also a great option for large trucks since of their large dimension and large-torque ability.

China supplier Double Enveloping Worm Gear and Shaft     with Best SalesChina supplier Double Enveloping Worm Gear and Shaft     with Best Sales