Product Description
Linear Lifting Manual Mechanical Lifter Gearbox Reducer Electric Motor Worm Gear Price China Manufacturer Wholesale Lift Screw Jack
Product Description
1. Suitable for heavy load, low speed, and low frequency;
2. Main components: precision trapezoid screw pair and high precision worm gear pair;
3. Compact design, small volume, lightweight, wide drive sources, low noise, easy operation, convenient maintenance
Detailed Photos
Product Parameters
| Type | Model | Screw thread size | Max lifting strength kN |
Max pull force kN |
Weight without stroke kg |
Screw weight per 100mm |
| SWL Screw jack |
SWL2.5 | Tr30*6 | 25 | 25 | 7.3 | 0.45 |
| SWL5 | Tr40*7 | 50 | 50 | 16.2 | 0.82 | |
| SWL10/15 | Tr58*12 | 100/150 | 99 | 25 | 1.67 | |
| SWL20 | Tr65*12 | 200 | 166 | 36 | 2.15 | |
| SWL25 | Tr90*16 | 250 | 250 | 70.5 | 4.15 | |
| SWL35 | Tr100*18 | 350 | 350 | 87 | 5.20 | |
| SWL50 | Tr120*20 | 500 | 500 | 420 | 7.45 | |
| SWL100 | Tr160*23 | 1000 | 1000 | 1571 | 13.6 | |
| SWL120 | Tr180*25 | 1200 | 1200 | 1350 | 17.3 |
Product structure
Typical models
Typical applications
Certifications
FAQ
Q: Can you make the screw jack gearbox reducer with customization?
A: Yes, we can customize per your request, like flange, shaft, configuration, material, etc.
Q: Do you provide samples?
A: Yes. A sample is available for testing.
Q: What is your MOQ?
A: It is 10pcs for the beginning of our business.
Q: What’s your lead time?
A: Standard products need 5-30days, a bit longer for customized products.
Q: Do you provide technical support?
A: Yes. Our company have design and development team, we can provide technical support if you
need.
Q: How to ship to us?
A: It is available by air, or by sea, or by train.
Q: How to pay the money?
A: T/T and L/C are preferred, with a different currency, including USD, EUR, RMB, etc.
Q: How can I know the product is suitable for me?
A: >1ST confirm drawing and specification >2nd test sample >3rd start mass production.
Q: Can I come to your company to visit?
A: Yes, you are welcome to visit us at any time.
Q: How shall we contact you?
A: You can send an inquiry directly, and we will respond within 24 hours.
| After-sales Service: | Available |
|---|---|
| Warranty: | 12 Months |
| Type: | Mechanical Jack |
| Samples: |
US$ 100/Piece
1 Piece(Min.Order) | Order Sample Blue or Grey
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What Are Screw Shaft Threads?
A screw shaft is a threaded part used to fasten other components. The threads on a screw shaft are often described by their Coefficient of Friction, which describes how much friction is present between the mating surfaces. This article discusses these characteristics as well as the Material and Helix angle. You’ll have a better understanding of your screw shaft’s threads after reading this article. Here are some examples. Once you understand these details, you’ll be able to select the best screw nut for your needs.
Coefficient of friction between the mating surfaces of a nut and a screw shaft
There are two types of friction coefficients. Dynamic friction and static friction. The latter refers to the amount of friction a nut has to resist an opposing motion. In addition to the material strength, a higher coefficient of friction can cause stick-slip. This can lead to intermittent running behavior and loud squeaking. Stick-slip may lead to a malfunctioning plain bearing. Rough shafts can be used to improve this condition.
The two types of friction coefficients are related to the applied force. When applying force, the applied force must equal the nut’s pitch diameter. When the screw shaft is tightened, the force may be removed. In the case of a loosening clamp, the applied force is smaller than the bolt’s pitch diameter. Therefore, the higher the property class of the bolt, the lower the coefficient of friction.
In most cases, the screwface coefficient of friction is lower than the nut face. This is because of zinc plating on the joint surface. Moreover, power screws are commonly used in the aerospace industry. Whether or not they are power screws, they are typically made of carbon steel, alloy steel, or stainless steel. They are often used in conjunction with bronze or plastic nuts, which are preferred in higher-duty applications. These screws often require no holding brakes and are extremely easy to use in many applications.
The coefficient of friction between the mating surfaces of t-screws is highly dependent on the material of the screw and the nut. For example, screws with internal lubricated plastic nuts use bearing-grade bronze nuts. These nuts are usually used on carbon steel screws, but can be used with stainless steel screws. In addition to this, they are easy to clean.
Helix angle
In most applications, the helix angle of a screw shaft is an important factor for torque calculation. There are two types of helix angle: right and left hand. The right hand screw is usually smaller than the left hand one. The left hand screw is larger than the right hand screw. However, there are some exceptions to the rule. A left hand screw may have a greater helix angle than a right hand screw.
A screw’s helix angle is the angle formed by the helix and the axial line. Although the helix angle is not usually changed, it can have a significant effect on the processing of the screw and the amount of material conveyed. These changes are more common in two stage and special mixing screws, and metering screws. These measurements are crucial for determining the helix angle. In most cases, the lead angle is the correct angle when the screw shaft has the right helix angle.
High helix screws have large leads, sometimes up to six times the screw diameter. These screws reduce the screw diameter, mass, and inertia, allowing for higher speed and precision. High helix screws are also low-rotation, so they minimize vibrations and audible noises. But the right helix angle is important in any application. You must carefully choose the right type of screw for the job at hand.
If you choose a screw gear that has a helix angle other than parallel, you should select a thrust bearing with a correspondingly large center distance. In the case of a screw gear, a 45-degree helix angle is most common. A helix angle greater than zero degrees is also acceptable. Mixing up helix angles is beneficial because it allows for a variety of center distances and unique applications.
Thread angle
The thread angle of a screw shaft is measured from the base of the head of the screw to the top of the screw’s thread. In America, the standard screw thread angle is 60 degrees. The standard thread angle was not widely adopted until the early twentieth century. A committee was established by the Franklin Institute in 1864 to study screw threads. The committee recommended the Sellers thread, which was modified into the United States Standard Thread. The standardized thread was adopted by the United States Navy in 1868 and was recommended for construction by the Master Car Builders’ Association in 1871.
Generally speaking, the major diameter of a screw’s threads is the outside diameter. The major diameter of a nut is not directly measured, but can be determined with go/no-go gauges. It is necessary to understand the major and minor diameters in relation to each other in order to determine a screw’s thread angle. Once this is known, the next step is to determine how much of a pitch is necessary to ensure a screw’s proper function.
Helix angle and thread angle are two different types of angles that affect screw efficiency. For a lead screw, the helix angle is the angle between the helix of the thread and the line perpendicular to the axis of rotation. A lead screw has a greater helix angle than a helical one, but has higher frictional losses. A high-quality lead screw requires a higher torque to rotate. Thread angle and lead angle are complementary angles, but each screw has its own specific advantages.
Screw pitch and TPI have little to do with tolerances, craftsmanship, quality, or cost, but rather the size of a screw’s thread relative to its diameter. Compared to a standard screw, the fine and coarse threads are easier to tighten. The coarser thread is deeper, which results in lower torques. If a screw fails because of torsional shear, it is likely to be a result of a small minor diameter.
Material
Screws have a variety of different sizes, shapes, and materials. They are typically machined on CNC machines and lathes. Each type is used for different purposes. The size and material of a screw shaft are influenced by how it will be used. The following sections give an overview of the main types of screw shafts. Each one is designed to perform a specific function. If you have questions about a specific type, contact your local machine shop.
Lead screws are cheaper than ball screws and are used in light-duty, intermittent applications. Lead screws, however, have poor efficiency and are not recommended for continuous power transmission. But, they are effective in vertical applications and are more compact. Lead screws are typically used as a kinematic pair with a ball screw. Some types of lead screws also have self-locking properties. Because they have a low coefficient of friction, they have a compact design and very few parts.
Screws are made of a variety of metals and alloys. Steel is an economical and durable material, but there are also alloy steel and stainless steel types. Bronze nuts are the most common and are often used in higher-duty applications. Plastic nuts provide low-friction, which helps reduce the drive torques. Stainless steel screws are also used in high-performance applications, and may be made of titanium. The materials used to create screw shafts vary, but they all have their specific functions.
Screws are used in a wide range of applications, from industrial and consumer products to transportation equipment. They are used in many different industries, and the materials they’re made of can determine their life. The life of a screw depends on the load that it bears, the design of its internal structure, lubrication, and machining processes. When choosing screw assemblies, look for a screw made from the highest quality steels possible. Usually, the materials are very clean, so they’re a great choice for a screw. However, the presence of imperfections may cause a normal fatigue failure.
Self-locking features
Screws are known to be self-locking by nature. The mechanism for this feature is based on several factors, such as the pitch angle of the threads, material pairing, lubrication, and heating. This feature is only possible if the shaft is subjected to conditions that are not likely to cause the threads to loosen on their own. The self-locking ability of a screw depends on several factors, including the pitch angle of the thread flank and the coefficient of sliding friction between the two materials.
One of the most common uses of screws is in a screw top container lid, corkscrew, threaded pipe joint, vise, C-clamp, and screw jack. Other applications of screw shafts include transferring power, but these are often intermittent and low-power operations. Screws are also used to move material in Archimedes’ screw, auger earth drill, screw conveyor, and micrometer.
A common self-locking feature for a screw is the presence of a lead screw. A screw with a low PV value is safe to operate, but a screw with high PV will need a lower rotation speed. Another example is a self-locking screw that does not require lubrication. The PV value is also dependent on the material of the screw’s construction, as well as its lubrication conditions. Finally, a screw’s end fixity – the way the screw is supported – affects the performance and efficiency of a screw.
Lead screws are less expensive and easier to manufacture. They are a good choice for light-weight and intermittent applications. These screws also have self-locking capabilities. They can be self-tightened and require less torque for driving than other types. The advantage of lead screws is their small size and minimal number of parts. They are highly efficient in vertical and intermittent applications. They are not as accurate as lead screws and often have backlash, which is caused by insufficient threads.
editor by CX 2023-11-15
China Custom Skid Steer Loader Final Drive Travel Motor Gearbox Reducer For Bobcat near me factory
Problem: New
Applicable Industries: Machinery Mend Outlets, Farms, Development works , Strength & Mining
Showroom Area: None
Movie outgoing-inspection: Not Accessible
Equipment Examination Report: Presented
Advertising Sort: Sizzling Product 2019
Warranty: 1 Year
Structure: MCR05 Motor
Application: Skid Steer Loader
Mounting: Shaft motor
Max. toqque: 3040Nm
Displacement: 750cc/r
Max. electricity: 35Kw
Following Warranty Provider: Movie technological assistance, travel shaft for Chrysler 300 AWD (Front Axles) On-line help, Spare parts
Local Service Location: None
After-sales Services Offered: Movie technical help, Free of charge spare parts
Packaging Details: Carton with pallet
Port: HangZhou
mada
Design Number
MCR05A750A
Displacement
750 cc/r
Rated torque
2980 Nm
Max. speed
290 rpm
Machine manufacturer
Caterpillar, Bobcat, Created In China Manufacturing facility Cost Diameter 26Mm Cleaning Brush Little one Bottle Components Clear Plastic Gearbox Kubota
Software
Skid Steer Loader, Drilling Rig, Mining Equipment, Break Device.
Location of Origin
ZheJiang , Price tag lower polished shaft rolling ring driving GP3-20C traverse device China
Model Name
Weitai
Guarantee
1 12 months
MCR05A Radial piston motor for frame built-in push.Hydraulic Wheel Motor, Shaft Travel, Wheel Travel, Ultimate Drive.Displacement from 380cc/r to 820cc/r.Single velocity and double velocity accessible.With Brake and with no brake choices.High top quality OEM Wheel Motor with 1 total year warranty.Rapid delivery inside 5 days right after acquiring payment.Flawlessly replacement for CZPT MCR05 series Hydraulic Motors.
Weitai MCR series Last Drive is a higher torque Hydraulic Travel Motor Assy for Wheel Generate. It is broadly utilised as touring gadget of Wheel Travel Machines. Most of our Last Generate assembly is a Freewheel Travel Motor.
MCR Wheel Motor is with the comparable proportions with most of the popular brands in market these kinds of as CZPT Wheel Motor and CZPT Hydraulic Motor.
We are specialist in Excavator Last Generate and Excavator Swing Motor. We represented the higher standard of China Hydraulic Motor. When you are looking for an Excavator Final Travel Motor, 0B5398048C 0B5398048D Repair kit for 0B5 DL501 mechatronics For Audi VW 7 Speed DSG Automatic Gearbox Wirng Harness Fix CZPT Vacation Motor will be your appropriate choice.
dianjiguangl
far more
one
How to explain to if your driveshaft needs changing
What is the cause of the unbalanced push shaft? Unstable U-joint? Your vehicle may make clicking noises whilst driving. If you can listen to it from the two sides, it may be time to hand it more than to the mechanic. If you happen to be not positive, study on to understand more. Thankfully, there are numerous approaches to tell if your driveshaft wants changing.
unbalanced
An unbalanced driveshaft can be the resource of strange noises and vibrations in your motor vehicle. To repair this dilemma, you must make contact with a expert. You can try a quantity of issues to fix it, like welding and altering the weight. The adhering to are the most widespread methods. In addition to the techniques over, you can use standardized weights to balance the driveshaft. These standardized weights are connected to the shaft by welders.
An unbalanced generate shaft usually creates lateral vibrations for every revolution. This variety of vibration is usually triggered by a destroyed shaft, missing counterweights, or a international object stuck on the travel shaft. On the other hand, torsional vibrations arise twice for every revolution, and they are brought on by shaft stage shifts. Finally, crucial speed vibration occurs when the RPM of the generate shaft exceeds its rated potential. If you suspect a driveshaft dilemma, examine the adhering to:
Manually adjusting the imbalance of a drive shaft is not the easiest task. To steer clear of the difficulty of handbook balancing, you can decide on to use standardized weights. These weights are fastened on the outer circumference of the travel shaft. The operator can manually placement the fat on the shaft with specific tools, or use a robot. However, handbook balancers have a lot of down sides.
unstable
When the angular velocity of the output shaft is not consistent, it is unstable. The angular velocity of the output shaft is .004 at ph = 29.5 and 1.9 at t = 1.9. The angular velocity of the intermediate shaft is not a dilemma. But when it’s unstable, the torque utilized to it is also considerably for the machine. It may possibly be a excellent concept to check the rigidity on the shaft.
An unstable generate shaft can trigger a whole lot of noise and mechanical vibration. It can guide to untimely shaft fatigue failure. CZPT research the impact of shaft vibration on the rotor bearing program. They investigated the effect of flex coupling misalignment on the vibration of the rotor bearing program. They assume that the vibrational response has two elements: x and y. Even so, this strategy has minimal software in a lot of conditions.
Experimental results show that the presence of cracks in the output shaft may possibly mask the unbalanced excitation attributes. For example, the existence of superharmonic peaks on the spectrum is characteristic of cracks. The existence of cracks in the output shaft masks unbalanced excitation attributes that cannot be detected in the transient reaction of the enter shaft. Figure 8 demonstrates that the frequency of the rotor boosts at critical pace and decreases as the shaft passes the natural frequency.
Unreliable
If you are obtaining trouble driving your vehicle, odds are you have run into an unreliable driveshaft. This type of drivetrain can trigger the wheels to adhere or not turn at all, and also restrict the total handle of the auto. What ever the purpose, these problems need to be fixed as shortly as possible. Here are some indicators to search for when diagnosing a driveshaft fault. Let’s take a nearer search.
The 1st symptom you may possibly discover is an unreliable drive shaft. You could come to feel vibrations, or listen to noises below the car. Depending on the lead to, it could be a broken joint or a broken shaft. The good news is that driveshaft repairs are typically comparatively economical and consider much less time than a total drivetrain substitute. If you are not confident what to do, CZPT has a guidebook to changing the U-connector.
One of the most common indicators of an unreliable driveshaft is clanging and vibration. These appears can be caused by worn bushings, loose U-joints, or ruined center bearings. This can cause extreme vibration and sounds. You can also really feel these vibrations by way of the steering wheel or the ground. An unreliable driveshaft is a symptom of a greater dilemma.
Unreliable U-joints
A vehicle with an unreliable U-joint on the generate shaft can be harmful. A bad u-joint can avoid the motor vehicle from driving properly and may even cause you difficulties. Unreliable u-joints are low-cost to change and you need to try getting elements from top quality manufacturers. Unreliable U-joints can lead to the auto to vibrate in the chassis or equipment lever. This is a confident sign that your vehicle has been neglected in servicing.
Replacing a U-joint is not a complex job, but it calls for specific equipment and a good deal of elbow grease. If you don’t have the appropriate instruments, or you happen to be unfamiliar with mechanical terminology, it is very best to seek out the support of a mechanic. A skilled mechanic will be ready to properly assess the dilemma and suggest an acceptable solution. But if you do not really feel self-assured adequate, you can change your possess U-connector by pursuing a few easy actions.
To ensure the vehicle’s driveshaft is not broken, verify the U-joint for put on and lubrication. If the U-joint is worn, the steel areas are most likely to rub in opposition to every other, causing dress in. The quicker a dilemma is diagnosed, the more quickly it can be resolved. Also, the lengthier you wait, the a lot more you get rid of on repairs.
damaged generate shaft
The driveshaft is the component of the car that connects the wheels. If the driveshaft is broken, the wheels may possibly cease turning and the motor vehicle may possibly slow down or stop moving fully. It bears the bodyweight of the vehicle itself as effectively as the load on the road. So even a slight bend or break in the generate shaft can have dire implications. Even a piece of free metal can become a deadly missile if dropped from a motor vehicle.
If you listen to a screeching sound or growl from your vehicle when shifting gears, your driveshaft may possibly be broken. When this transpires, damage to the u-joint and excessive slack in the travel shaft can result. These situations can more harm the drivetrain, like the entrance 50 percent. You must substitute the driveshaft as shortly as you observe any indicators. Right after changing the driveshaft, you can start searching for symptoms of use.
A knocking sound is a indication of injury to the push shaft. If you hear this sound while driving, it may be due to worn couplings, ruined propshaft bearings, or broken U-joints. In some instances, the knocking sounds can even be triggered by a destroyed U-joint. When this occurs, you may possibly need to exchange the total driveshaft, requiring a new 1.
Maintenance costs
The cost of repairing a driveshaft varies broadly, depending on the type and lead to of the difficulty. A new driveshaft charges among $300 and $1,300, which includes labor. Restoring a ruined driveshaft can value everywhere from $200 to $three hundred, depending on the time required and the type of areas needed. Signs of a ruined driveshaft incorporate unresponsiveness, vibration, chassis noise and a stationary automobile.
The initial thing to contemplate when estimating the value of fixing a driveshaft is the type of vehicle you have. Some vehicles have far more than one particular, and the areas utilized to make them may possibly not be suitable with other vehicles. Even if the same vehicle has two driveshafts, the destroyed kinds will cost far more. The good news is, numerous auto fix outlets offer you free of charge estimates to repair ruined driveshafts, but be conscious that this sort of perform can be complicated and pricey.
