China Hot selling Worm Transmission Gear Series Double Enveloping Worm Gearbox with Hot selling

Product Description


Merchandise Description

Planar dobule enveloping ring floor worm reducer is a new sort of transmission unit, which has large bearing
potential, higher transmission efficiency, compact and reasonable composition.This reducer can be broadly utilized in a range
of transmission equipment deceleration travel, this sort of as metallurgy, mining, hoisting, chemical business, construction
rubber ship and other industries and other mechanical gear, ideal for the enter shaft velocity is not much more than
1500 RPM, the worm shaft can be constructive, reverse direction rotation.

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Merchandise Parameters



Our Advantages




Organization Profile

Xihu (West Lake) Transmission Gear Co., Ltd. found HangZhou metropolis, ZHangZhoug, as 1 skilled producer
and exporter of cycloidal pin wheel reducer,worm reducer, equipment reducer, gearbox,AC motor and relative spare
components, owns rich experience in this line for many a long time.

We are 1 direct manufacturing facility, with innovative production gear, the powerful improvement crew and producing
potential to supply high quality goods for buyers.

Our goods broadly served to a variety of industries of Metallurgy, Chemical compounds, textile,medication,wooden etc. Primary
marketplaces: China, Africa,Australia,Vietnam, Turkey,Japan, Korea, Philippines…

Welcome to inquire us any inquiries, excellent supply usually for you for prolonged expression organization.


Q: Are you buying and selling organization or producer?
A: We are factory.

Q: How prolonged is your supply time?
A: Usually it is 5-ten days if the goods are in stock. or it is fifteen-twenty times if the items are not in inventory.

Q: Can we get 1 computer of every item for top quality testing?
A: Sure, we are glad to settle for trial order for quality testing.

Q:How to choose a gearbox which fulfills your prerequisite?
A:You can refer to our catalogue to pick the gearbox or we can help to choose when you provide
the technical info of essential output torque, output speed and motor parameter and many others.

Q: What information shall we give prior to inserting a acquire get?
A:a) Sort of the gearbox, ratio, input and output sort, enter flange, mounting placement, and motor informationetc.
b) Housing color.
c) Acquire quantity.
d) Other special specifications.

Worm Shafts and Gearboxes

If you have a gearbox, you might be pondering what the very best Worm Shaft is for your software. There are numerous items to take into account, such as the Concave shape, Number of threads, and Lubrication. This post will explain each issue and assist you select the proper Worm Shaft for your gearbox. There are many alternatives offered on the market place, so don’t wait to store all around. If you are new to the entire world of gearboxes, study on to find out far more about this well-liked type of gearbox.
worm shaft

Concave form

The geometry of a worm gear may differ substantially dependent on its manufacturer and its supposed use. Early worms experienced a basic profile that resembled a screw thread and could be chased on a lathe. Later on, resources with a straight sided g-angle have been designed to generate threads that had been parallel to the worm’s axis. Grinding was also developed to boost the finish of worm threads and minimize distortions that take place with hardening.
To decide on a worm with the suitable geometry, the diameter of the worm equipment must be in the same device as the worm’s shaft. Once the fundamental profile of the worm equipment is decided, the worm gear teeth can be specified. The calculation also requires an angle for the worm shaft to avert it from overheating. The angle of the worm shaft ought to be as shut to the vertical axis as achievable.
Double-enveloping worm gears, on the other hand, do not have a throat close to the worm. They are helical gears with a straight worm shaft. Because the enamel of the worm are in contact with each other, they produce substantial friction. Unlike double-enveloping worm gears, non-throated worm gears are more compact and can take care of smaller hundreds. They are also easy to manufacture.
The worm gears of various companies supply several benefits. For occasion, worm gears are a single of the most productive techniques to boost torque, although reduce-good quality supplies like bronze are hard to lubricate. Worm gears also have a minimal failure price due to the fact they permit for appreciable leeway in the style method. Even with the distinctions amongst the two requirements, the general functionality of a worm gear program is the identical.
The cone-formed worm is one more sort. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a valuable utility product. Worms with this form have more than a few contacts at the identical time, which means they can reduce a massive diameter without too much wear. It is also a relatively low-expense model.
worm shaft

Thread sample

A very good worm gear needs a perfect thread sample. There are a few key parameters that decide how good a thread pattern is. To begin with, the threading pattern have to be ACME-threaded. If this is not attainable, the thread must be made with straight sides. Then, the linear pitch of the “worm” need to be the very same as the circular pitch of the corresponding worm wheel. In basic phrases, this implies the pitch of the “worm” is the exact same as the round pitch of the worm wheel. A fast-alter gearbox is usually employed with this sort of worm equipment. Alternatively, lead-screw change gears are employed instead of a swift-modify equipment box. The pitch of a worm equipment equals the helix angle of a screw.
A worm gear’s axial pitch have to match the round pitch of a equipment with a higher axial pitch. The round pitch is the length amongst the details of teeth on the worm, while the axial pitch is the length among the worm’s enamel. One more element is the worm’s guide angle. The angle in between the pitch cylinder and worm shaft is named its guide angle, and the higher the lead angle, the greater the efficiency of a equipment.
Worm equipment tooth geometry may differ based on the producer and intended use. In early worms, threading resembled the thread on a screw, and was simply chased employing a lathe. Later, grinding improved worm thread finishes and minimized distortions from hardening. As a result, today, most worm gears have a thread sample corresponding to their dimension. When selecting a worm equipment, make positive to verify for the amount of threads ahead of acquiring it.
A worm gear’s threading is essential in its procedure. Worm teeth are usually cylindrical, and are organized in a sample similar to screw or nut threads. Worm enamel are often formed on an axis of perpendicular when compared to their parallel counterparts. Simply because of this, they have greater torque than their spur gear counterparts. In addition, the gearing has a minimal output velocity and substantial torque.

Number of threads

Various kinds of worm gears use distinct quantities of threads on their planetary gears. A one threaded worm equipment must not be used with a double-threaded worm. A solitary-threaded worm gear need to be employed with a single-threaded worm. Single-threaded worms are much more powerful for speed reduction than double-threaded kinds.
The quantity of threads on a worm’s shaft is a ratio that compares the pitch diameter and amount of enamel. In standard, worms have 1,2,4 threads, but some have three, 5, or six. Counting thread begins can support you establish the quantity of threads on a worm. A solitary-threaded worm has less threads than a several-threaded worm, but a multi-threaded worm will have far more threads than a mono-threaded planetary equipment.
To evaluate the amount of threads on a worm shaft, a little fixture with two floor faces is employed. The worm should be removed from its housing so that the finished thread spot can be inspected. After figuring out the number of threads, basic measurements of the worm’s outside the house diameter and thread depth are taken. Once the worm has been accounted for, a solid of the tooth space is created employing epoxy content. The casting is moulded among the two tooth flanks. The V-block fixture rests towards the outside the house diameter of the worm.
The round pitch of a worm and its axial pitch should match the circular pitch of a greater equipment. The axial pitch of a worm is the length between the details of the teeth on a worm’s pitch diameter. The guide of a thread is the length a thread travels in one particular revolution. The direct angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s pace transmission ratio is based on the number of threads. A worm equipment with a substantial ratio can be easily diminished in one particular phase by making use of a established of worm gears. Nevertheless, a multi-thread worm will have a lot more than two threads. The worm gear is also far more successful than solitary-threaded gears. And a worm gear with a substantial ratio will enable the motor to be utilized in a selection of applications.
worm shaft


The lubrication of a worm equipment is particularly tough, owing to its friction and substantial sliding make contact with drive. Thankfully, there are a number of possibilities for lubricants, this sort of as compounded oils. Compounded oils are mineral-dependent lubricants formulated with 10 p.c or far more fatty acid, rust and oxidation inhibitors, and other additives. This mix benefits in enhanced lubricity, reduced friction, and reduce sliding dress in.
When choosing a lubricant for a worm shaft, make confident the product’s viscosity is correct for the type of gearing utilised. A low viscosity will make the gearbox challenging to actuate and rotate. Worm gears also go through a better sliding movement than rolling movement, so grease need to be able to migrate evenly through the gearbox. Repeated sliding motions will press the grease absent from the speak to zone.
An additional thing to consider is the backlash of the gears. Worm gears have higher equipment ratios, at times three hundred:1. This is important for power apps, but is at the same time inefficient. Worm gears can make warmth in the course of the sliding movement, so a high-quality lubricant is important. This variety of lubricant will reduce heat and ensure optimal efficiency. The subsequent guidelines will support you decide on the right lubricant for your worm gear.
In low-pace purposes, a grease lubricant may possibly be adequate. In larger-speed programs, it’s best to utilize a synthetic lubricant to avert untimely failure and tooth put on. In the two instances, lubricant selection relies upon on the tangential and rotational velocity. It is essential to adhere to manufacturer’s guidelines regarding the option of lubricant. But bear in mind that lubricant choice is not an straightforward job.

China Hot selling Worm Transmission Gear Series Double Enveloping Worm Gearbox     with Hot sellingChina Hot selling Worm Transmission Gear Series Double Enveloping Worm Gearbox     with Hot selling