Product Description
Wpa Wps Low Speed Worm Gear Speed Reducer
Structure Feature
1. The reducer is widely used in light industry, good resistance to wearing, with high precision in dimensions, lower noise,
advanced centric running castings
2. The housing is of strong hardness, compact structure
3. Stable transmission, low vibration, large ratio, canbe matched with various machines
Product Structural Drawing
Model Description
Total 60 families and more than 20,000types with different models, ratios, connections and installations can be selected to meet requirements of customers.
View Of Item
WPA worm gearbox
WPS worm gearbox
Notice of installation
1. The base-plate must be plane and stoutness, and the base-plate must be screwed down and shockproof
2. The connecting shaft of prime mover, gearbox and operation device must be coaxial installatios
3. The diameter tolerance zone of input and output shaft is H6, the holes of fittings(such as couplings, belt-pulley, sprocket wheel and so on) must properly mate the shaft, which prevents bearing from breakage because of over-loose mate
4. Drivers such as sprocket wheel and gear must be fitted close to bearings in order to reduce bending stress of hanging shaft
5. White assembling motor of WPD reducer, it is necessary that proper amount of butter applies to the worm shaft input hole and keyway, avoiding assembling too tightly and rusting after using for a long time
6. When ordering or using all kinds of WPD type, if the motor weight is bigger than the common, supporting set is required
Notice of usage
1. Before using, please check carefully whether the gearbox model, distance, ratio, input connecting method, output shaft structure, input and output shaft direction and revolving direction accord with requirement
2. According to the requirement of selecting lubricant oil in the product manual, please fill proper category and brand lubricant. And then screw on the vent-plug; Unlock the small cone-plug of vent-plug. Only after doing these, reducer is already for starting up running. The proper brand and adequate lubricant oil is required, replacing oil in time conforming to the request of product manual is also necessary, especially after using first 100 hours, it is required refilling new oil
3. When abnormal circumstances occur, please stop and check reducer per solutions and reasons for faults of reducer (allowable highest oil temperature is 95, under this temperature limit, if oil temperature no more goes up, please let reducer continue running)
COMPANY OVERVIEW
About Greensky Power
- History: Greensky Power Co.,ltd was founded in Los Angeles in 2008 and has focused on manufacturing and supplying motor and gearbox for 8 years since 2008.
- Market: Greensky Power has customers in 30 different countries. Germany, Austria, Japan, USA and Middle-East are our main market.
- Honors:Greensky Power is member of a council in ZHangZhoug Solar Association which is the biggest renewable energy association in Southeast of China.
Greensky’s Advantage
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Price |
Competitive & Reasonable. Our mission is to “Greening the World”. Distributing massively in a cheap price is our strategy. We want more and more people are using high effeciency motor and gearbox. |
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Quality |
Quality control is done by 4 processes: Manufacturer Control + Material Control + Production Control + Finished Goods Control. |
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Delivery |
100% on-time delivery Guaranteed |
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Evaluation |
100% Customer Satisfaction Guaranteed |
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Services |
English, German, Japanese and Chinese sales representatives are available for One-stop full services. |
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Business type |
Manufacture & Trading & EPC. Greensky Power has subsidiary company producing solar panels which makes our price very competitive. At same time, Greensky Power has a subsidiary EPC company which can give professional technical support for complicated technical questions. |
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Experience |
Our products have been sold to strict clients in Germany and Japan. They are all satisfied with our products. Delivering quality products and convenient communication service are our goal. |
On the site you can find a range of products including worm gearbox, DC gear motor,AC gear motor, and their relevant components.
FAQ
1 Q:What infomation should I tell you to confirm the worm gearbox?
A: Model/Size B:Ratio and output torque C:Power and flange type D:Order quantity.
2 Q: What if I don’t know which worm gearbox need?
A:Don’t worry, Send as much information as you can, our team will help you find the right 1 you are looking for.
3 Q:How long should I wait for the feedback after I send the enquiry?
A: Within 12 hours.
4 Q:What is your warrenty period for worm gearbox?
A:We offer 1 year warrenty since the vessel departure date left China.
5 Q:What industries are your worm gearbox being used?
A:Our worm gearbox are widely used in the areas of household appliances and light industry,etc.
6. Q:How to delivery:
A: By sea – Buyer appoint forwarder, or our sales team find suitable forwarder for buyers.
By air – Buyer offer collect express account, or our sales team find suitable express for buyers. (Mostly for sample)
Others – We arrange to delivery goods to some place in China appointed by buyers.
7. When you place an order, our team will confirm with you about color, package,method of payment and delivery, then a sales contract will be sent to you to confirm.
If you have any other questions, please feel free to contact us.
Screw Sizes and Their Uses
Screws have different sizes and features. This article will discuss screw sizes and their uses. There are 2 main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.
The major diameter of a screw shaft
The major diameter of a screw shaft is the distance from the outer edge of the thread on 1 side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between 2 and 16 inches. A screw with a pointy tip has a smaller major diameter than 1 without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is 1 element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.
The pitch diameter of a screw shaft
When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of 1 thread to the corresponding point on the next thread. Measurement is made from 1 thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.
The thread depth of a screw shaft
Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in 1 revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.
The lead of a screw shaft
Pitch and lead are 2 measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are 2 ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with 2 or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.
The thread angle of a screw shaft
The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are 2 types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.
The tapped hole (or nut) into which the screw fits
A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.
