China manufacturer S Series Helical Worm Gear Reducer Motor wholesaler

Merchandise Description

EWS sequence adopts helical gear – worm equipment pace reducer motor built-in travel to boost the torque and effectiveness of the pace reducer with vast variety of CZPT speed and good universality, it is relevant to different set up modes and features protected and dependable performance, and prolonged services life, in addition, it also complies with the international common.

Characteristic edge
1.Mixture of helical equipment and worm, vertical output, compact construction, higher velocity ratio.
2.The concave-convex area of the merchandise gives the operate of heat dissipation, and features robust vibration absorption, low temperature rise, low sound. 
3.The product features substantial generate precision, and is specially suitable for the website with regular commence, is can be linked with varied speed reducers and configuring varied motor drives, and can be installed at the 90º travel operation site. 

Specification parameter
Set up kind :  Foot,flange,little flange,torque arm.
Output kind :      Solid shaft,hollow shaft,hollow shaft with shrink disk,spline hollow shaft.
Enter variety :        Motor,input shaft and flange
technological parameters :  ratio i=23.8~389,mixture of EWS/EWR is up to26688
Efficiency : ratio i=23.8~389,77%ratio i=seventy three.7~389,sixty two%and blend of EWS/EWR57%.


Industrial Application 
Energy Plant Equipment 
Metallurgical Industry 
Metal Forming Machinery 
Petrochemical Industry 
Mining Machine 
Hoisting Machinery 
Construction Industry 
Environmental Protection Industry 
Cable Industry 
Food Machinery 

Passed ” ISO 9001 Global Quality Technique Certification”,”Europe CE Certificate”, ” Swiss SGS Certificate”,”Higher-tech organization certification of ZheJiang metropolis”,”Superb performance management company of ZheJiang town”,etc.
one. Q: Can you make as for each custom drawing? 
A: Sure, we offer tailored service for customers. 
two. Q: Are you a factory or trading business? 
A. We are company in ZheJiang China. 
three. Q: What is your MOQ? 
A: One particular piece. 
four. Q: What is your production time? 
A: 7-fifteen doing work times right after acquiring payment. 
5. Q: What is your payment terms? 
A: T/T, thirty% payment in progress, 70% balance payment ought to be compensated before shipping and delivery. 
6. Q: What is your bundle? 
A: In wood box packaging. 

ZheJiang EASTWELL Gear Reducer Co.,Ltd., previous a joint enterprise invested by is a ZheJiang EAST PUMP Team and Nicely Business of America.We are skilled producer of the equipment reducers and focus in the gear reducers spot in China for twenty several years. EASTWELL has superb R&D crew,best-rating production and examination equipment.So we have the strong electricity in the building and producing the expectations kind as well as the custom-made kind gear reducer for our consumers.

Worm Shafts and Gearboxes

If you have a gearbox, you may be wondering what the best Worm Shaft is for your application. There are several factors to take into account, such as the Concave condition, Quantity of threads, and Lubrication. This write-up will describe every single issue and aid you pick the appropriate Worm Shaft for your gearbox. There are many options offered on the marketplace, so do not be reluctant to store all around. If you are new to the entire world of gearboxes, read through on to discover a lot more about this well-liked type of gearbox.
worm shaft

Concave form

The geometry of a worm equipment differs significantly relying on its producer and its meant use. Early worms had a basic profile that resembled a screw thread and could be chased on a lathe. Later, equipment with a straight sided g-angle have been designed to generate threads that have been parallel to the worm’s axis. Grinding was also created to improve the complete of worm threads and minimize distortions that take place with hardening.
To select a worm with the appropriate geometry, the diameter of the worm equipment need to be in the same device as the worm’s shaft. Once the standard profile of the worm gear is established, the worm equipment tooth can be specified. The calculation also includes an angle for the worm shaft to stop it from overheating. The angle of the worm shaft must be as close to the vertical axis as attainable.
Double-enveloping worm gears, on the other hand, do not have a throat around the worm. They are helical gears with a straight worm shaft. Considering that the teeth of the worm are in make contact with with every other, they make substantial friction. In contrast to double-enveloping worm gears, non-throated worm gears are more compact and can take care of scaled-down hundreds. They are also easy to manufacture.
The worm gears of various makers supply a lot of positive aspects. For instance, worm gears are one of the most efficient ways to boost torque, whilst decrease-quality components like bronze are difficult to lubricate. Worm gears also have a lower failure rate since they enable for considerable leeway in the design and style approach. Despite the distinctions between the two expectations, the general overall performance of a worm gear program is the identical.
The cone-shaped worm is another variety. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a beneficial utility design. Worms with this shape have more than 3 contacts at the same time, which signifies they can reduce a massive diameter with no extreme dress in. It is also a comparatively minimal-cost model.
worm shaft

Thread sample

A very good worm equipment requires a ideal thread sample. There are a number of important parameters that determine how good a thread pattern is. To start with, the threading pattern need to be ACME-threaded. If this is not feasible, the thread must be manufactured with straight sides. Then, the linear pitch of the “worm” have to be the exact same as the circular pitch of the corresponding worm wheel. In simple terms, this indicates the pitch of the “worm” is the identical as the round pitch of the worm wheel. A fast-adjust gearbox is usually employed with this variety of worm equipment. Alternatively, guide-screw modify gears are utilised alternatively of a swift-modify gear box. The pitch of a worm gear equals the helix angle of a screw.
A worm gear’s axial pitch should match the round pitch of a gear with a higher axial pitch. The circular pitch is the length amongst the points of enamel on the worm, whilst the axial pitch is the distance amongst the worm’s tooth. Yet another factor is the worm’s direct angle. The angle amongst the pitch cylinder and worm shaft is named its lead angle, and the greater the lead angle, the better the effectiveness of a equipment.
Worm gear tooth geometry differs dependent on the producer and meant use. In early worms, threading resembled the thread on a screw, and was very easily chased using a lathe. Afterwards, grinding enhanced worm thread finishes and minimized distortions from hardening. As a result, these days, most worm gears have a thread pattern corresponding to their measurement. When deciding on a worm equipment, make confident to check for the quantity of threads ahead of buying it.
A worm gear’s threading is critical in its operation. Worm tooth are normally cylindrical, and are arranged in a pattern related to screw or nut threads. Worm teeth are frequently fashioned on an axis of perpendicular compared to their parallel counterparts. Since of this, they have higher torque than their spur equipment counterparts. Moreover, the gearing has a minimal output velocity and high torque.

Variety of threads

Different types of worm gears use diverse figures of threads on their planetary gears. A single threaded worm equipment need to not be utilised with a double-threaded worm. A one-threaded worm equipment must be used with a solitary-threaded worm. One-threaded worms are more powerful for speed reduction than double-threaded kinds.
The number of threads on a worm’s shaft is a ratio that compares the pitch diameter and quantity of teeth. In basic, worms have 1,2,4 threads, but some have three, five, or 6. Counting thread begins can assist you establish the variety 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 ground faces is utilised. The worm need to be taken off from its housing so that the concluded thread area can be inspected. Following pinpointing the number of threads, easy measurements of the worm’s outside diameter and thread depth are taken. When the worm has been accounted for, a solid of the tooth space is produced utilizing epoxy material. The casting is moulded among the two tooth flanks. The V-block fixture rests towards the outdoors diameter of the worm.
The circular 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 amongst the details of the enamel on a worm’s pitch diameter. The direct of a thread is the distance a thread travels in one particular revolution. The lead angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s pace transmission ratio is based on the amount of threads. A worm equipment with a substantial ratio can be effortlessly reduced in one particular action by employing a set of worm gears. However, a multi-thread worm will have much more than two threads. The worm equipment is also far more successful than one-threaded gears. And a worm gear with a high ratio will allow the motor to be employed in a assortment of apps.
worm shaft


The lubrication of a worm equipment is especially tough, owing to its friction and substantial sliding contact drive. Luckily, there are a number of choices for lubricants, this kind of as compounded oils. Compounded oils are mineral-primarily based lubricants formulated with ten % or far more fatty acid, rust and oxidation inhibitors, and other additives. This blend results in improved lubricity, decreased friction, and reduced sliding put on.
When choosing a lubricant for a worm shaft, make positive the product’s viscosity is proper for the sort of gearing used. A reduced viscosity will make the gearbox hard to actuate and rotate. Worm gears also bear a better sliding motion than rolling movement, so grease need to be able to migrate evenly through the gearbox. Repeated sliding motions will thrust the grease absent from the contact zone.
One more consideration is the backlash of the gears. Worm gears have large equipment ratios, at times 300:1. This is critical for energy programs, but is at the exact same time inefficient. Worm gears can generate warmth for the duration of the sliding motion, so a substantial-good quality lubricant is vital. This kind of lubricant will lessen warmth and ensure ideal overall performance. The adhering to tips will assist you decide on the appropriate lubricant for your worm gear.
In minimal-velocity applications, a grease lubricant may possibly be ample. In larger-speed apps, it’s best to use a artificial lubricant to avert untimely failure and tooth put on. In both circumstances, lubricant decision relies upon on the tangential and rotational pace. It is important to comply with manufacturer’s tips concerning the option of lubricant. But keep in mind that lubricant decision is not an simple task.

China manufacturer S Series Helical Worm Gear Reducer Motor     wholesaler China manufacturer S Series Helical Worm Gear Reducer Motor     wholesaler