Jost Truck Fifth Wheel Spare Parts Copling Fifth Wheel Repair Kit Parts
|CNC machining parts
|+/-0.01mm, 100% QC quality inspection before delivery, can provide quality inspection form
|Low MOQ Start 1 Pcs ( No need mold cost ) , Many Customer found us make prototype product to save Investment Funds for Pre-R&D and Market Testing
|Free of Sample Cost. Normally is USD 35~110 per Style Of Special Design We Need Sample Charge, Can Refund when You Have Official Bulk Order.
|1-25 days after order with prepayment based on products structure and quantity
|Europe Heavy Duty
|for JOST Fifth Wheels
|place of origin
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The products shown here is only to present the scope of our business activities. We can manufacture no standard parts according to your drawing or sample.
We can make brass/steel/aluminum/iron/stainless steel castings with Sand Cast Process, Investment Cast Process, Lost Wax Cast
Process, Gravity Cast Process and Die Cast Process.
Sand Casting & Machining
Gravity Casting & Machining
Investment Casting & Machining
Lost wax Casting & Machining
Die Casting & Machining
>>>Click to send your design for more information<<<
• Agricultural equipment
• Automobile industry
• Computing equipment
• Medical / dental instruments
• Measuring instruments
• Miscellaneous equipment
• Pharmaceutical industry
• Orthopedic implants
• Safety equipment
• Petrochemical industry
• Industrial valves
•Fixing and movable equipment
• Sanitary fittings
• General machinery
• Pumps and general connections
• Food and beverage processing
• Instrumentation equipment
• Pharmaceutical industry
• Textile equipment
Drawning Group is professional at independent development and design. Our engineers are skilled at AUTO CAD, PRO ENGINEER, SOLID WORKS and other 2D & 3D softwares. We are CZPT to design, develop,produce and deliver your PO according to your drawings, samples or just an idea. Dural control of standard products and OEM products.
1) Checking the raw material after they reach our factory——- Incoming quality control ( IQC)
2) Checking the details before the production line operated
3) Have full inspection and routing inspection during mass production—In process quality control(IPQC)
4) Checking the goods after they are finished—- Final quality control(FQC)
5) Checking the goods after they are finished—–Outgoing quality control(OQC)
WELCOME TO VISIT OUR FACTORY !
The best way to avoid your loss is to choose us
Dawning engineer team has enough engineering experience on average (sheet metal fabrication, CNC machining part, enclosure, bracket, chassis design, internal functional parts of products), fluent in English and effective communication ,Improve communication efficiency and save time for customers The leader of our enterprise is an Engineer, based on honesty and trustworthiness, and strict
control the product quality and technology strictly, so as to avoid your worries in the future. High quality, on-time delivery,professional design and one-stop service are the reasons for our long-term.
As long as you give us the functionality, performance, or even the idea of the product, we can change the product from the idea to reality. Welcome to consult immediately
Corporate philosophy: All problems end with us
1) Design assistance and full engineering support .
2) Professional at OEM CNC parts .
3) Complete production lines for custom turning, milling, CNC machining sheet metal fabrication, stamping, bending, argon welding and surface treatment.
4) Advanced machine tools, CAD/CAM programming software.
5) Prototype machining capabilities.
6) Strict quality control standards with a highly qualified inspection department .
7) Continually upgrading and advancing our equipment to remain competitive .
8) Small quality is also available.
Q1: Are you a factory or a trading company?
A1: We are a professional manufacturer of CNC parts for over 14 years.
Q2: How can I get quotation?
A2: Please help to send drawing (2D and 3D drawing) to us, so we can know the raw material, size and surface treatment, tolerance and other details of the product. And also inform us the quantity you need.
Q3: What kind of material you can process?
A3: Normally Aluminum alloy and stainless steel, but we also can do titanium alloy steel, copper alloy steel special alloy steel and non-metal material.
Q4: What is the minimum size tolerance you can do?
A4: The minimum size tolerance we can do is 0.001mm.
Q5: What is the biggest range you can do?
A5: The biggest range we can do is 1500mm.
Q6: Can you do precise and complicated CNC parts?
A6: Yes, we can do precise and complicated CNC parts by our 5/4/3 axis CNC machines
Q7: Can you accept sample order?
A7: Yes, we can do sample order per your requirement.
Q8:Can you accept custom packing?
A8: Yes, we can do custom packing as your requirement.
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 things to consider, including the Concave shape, Number of threads, and Lubrication. This article will explain each factor and help you choose the right Worm Shaft for your gearbox. There are many options available on the market, so don’t hesitate to shop around. If you are new to the world of gearboxes, read on to learn more about this popular type of gearbox.
The geometry of a worm gear varies considerably depending on its manufacturer and its intended use. Early worms had a basic profile that resembled a screw thread and could be chased on a lathe. Later, tools with a straight sided g-angle were developed to produce threads that were parallel to the worm’s axis. Grinding was also developed to improve the finish of worm threads and minimize distortions that occur with hardening.
To select a worm with the proper geometry, the diameter of the worm gear must be in the same unit as the worm’s shaft. Once the basic profile of the worm gear is determined, the worm gear teeth can be specified. The calculation also involves an angle for the worm shaft to prevent it from overheating. The angle of the worm shaft should be as close to the vertical axis as possible.
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. Since the teeth of the worm are in contact with each other, they produce significant friction. Unlike double-enveloping worm gears, non-throated worm gears are more compact and can handle smaller loads. They are also easy to manufacture.
The worm gears of different manufacturers offer many advantages. For instance, worm gears are 1 of the most efficient ways to increase torque, while lower-quality materials like bronze are difficult to lubricate. Worm gears also have a low failure rate because they allow for considerable leeway in the design process. Despite the differences between the 2 standards, the overall performance of a worm gear system is the same.
The cone-shaped worm is another type. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a useful utility model. Worms with this shape have more than 3 contacts at the same time, which means they can reduce a large diameter without excessive wear. It is also a relatively low-cost model.
A good worm gear requires a perfect thread pattern. There are a few key parameters that determine how good a thread pattern is. Firstly, the threading pattern must be ACME-threaded. If this is not possible, the thread must be made with straight sides. Then, the linear pitch of the “worm” must be the same as the circular pitch of the corresponding worm wheel. In simple terms, this means the pitch of the “worm” is the same as the circular pitch of the worm wheel. A quick-change gearbox is usually used with this type of worm gear. Alternatively, lead-screw change gears are used instead of a quick-change gear box. The pitch of a worm gear equals the helix angle of a screw.
A worm gear’s axial pitch must match the circular pitch of a gear with a higher axial pitch. The circular pitch is the distance between the points of teeth on the worm, while the axial pitch is the distance between the worm’s teeth. Another factor is the worm’s lead angle. The angle between the pitch cylinder and worm shaft is called its lead angle, and the higher the lead angle, the greater the efficiency of a gear.
Worm gear tooth geometry varies depending on the manufacturer and intended use. In early worms, threading resembled the thread on a screw, and was easily chased using a lathe. Later, grinding improved worm thread finishes and minimized distortions from hardening. As a result, today, most worm gears have a thread pattern corresponding to their size. When selecting a worm gear, make sure to check for the number of threads before purchasing it.
A worm gear’s threading is crucial in its operation. Worm teeth are typically cylindrical, and are arranged in a pattern similar to screw or nut threads. Worm teeth are often formed on an axis of perpendicular compared to their parallel counterparts. Because of this, they have greater torque than their spur gear counterparts. Moreover, the gearing has a low output speed and high torque.
Number of threads
Different types of worm gears use different numbers of threads on their planetary gears. A single threaded worm gear should not be used with a double-threaded worm. A single-threaded worm gear should be used with a single-threaded worm. Single-threaded worms are more effective for speed reduction than double-threaded ones.
The number of threads on a worm’s shaft is a ratio that compares the pitch diameter and number of teeth. In general, worms have 1,2,4 threads, but some have three, five, or six. Counting thread starts can help you determine the number of threads on a worm. A single-threaded worm has fewer threads than a multiple-threaded worm, but a multi-threaded worm will have more threads than a mono-threaded planetary gear.
To measure the number of threads on a worm shaft, a small fixture with 2 ground faces is used. The worm must be removed from its housing so that the finished thread area can be inspected. After identifying the number of threads, simple measurements of the worm’s outside diameter and thread depth are taken. Once the worm has been accounted for, a cast of the tooth space is made using epoxy material. The casting is moulded between the 2 tooth flanks. The V-block fixture rests against the outside diameter of the worm.
The circular pitch of a worm and its axial pitch must match the circular pitch of a larger gear. The axial pitch of a worm is the distance between the points of the teeth on a worm’s pitch diameter. The lead of a thread is the distance a thread travels in 1 revolution. The lead angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s speed transmission ratio is based on the number of threads. A worm gear with a high ratio can be easily reduced in 1 step by using a set of worm gears. However, a multi-thread worm will have more than 2 threads. The worm gear is also more efficient than single-threaded gears. And a worm gear with a high ratio will allow the motor to be used in a variety of applications.
The lubrication of a worm gear is particularly challenging, due to its friction and high sliding contact force. Fortunately, there are several options for lubricants, such as compounded oils. Compounded oils are mineral-based lubricants formulated with 10 percent or more fatty acid, rust and oxidation inhibitors, and other additives. This combination results in improved lubricity, reduced friction, and lower sliding wear.
When choosing a lubricant for a worm shaft, make sure the product’s viscosity is right for the type of gearing used. A low viscosity will make the gearbox difficult to actuate and rotate. Worm gears also undergo a greater sliding motion than rolling motion, so grease must be able to migrate evenly throughout the gearbox. Repeated sliding motions will push the grease away from the contact zone.
Another consideration is the backlash of the gears. Worm gears have high gear ratios, sometimes 300:1. This is important for power applications, but is at the same time inefficient. Worm gears can generate heat during the sliding motion, so a high-quality lubricant is essential. This type of lubricant will reduce heat and ensure optimal performance. The following tips will help you choose the right lubricant for your worm gear.
In low-speed applications, a grease lubricant may be sufficient. In higher-speed applications, it’s best to apply a synthetic lubricant to prevent premature failure and tooth wear. In both cases, lubricant choice depends on the tangential and rotational speed. It is important to follow manufacturer’s guidelines regarding the choice of lubricant. But remember that lubricant choice is not an easy task.