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China best Customized Heavy Duty Pulley Plastic Nylon POM and Galvanized Steel Sliding Door and Window Wheel Rollers Pulley with U Groove supplier

Product Description

Item No. Door and Window Replacement Rollers
Dimensions OEM
Material Bearing -Chrome steel, carbon steel, stainless steel
Plastic part- POM/ Nylon6 /Nylon66 +GF
Housing part – Plastic(Nylon)/ Steel/ Zinc alloy die casting / Aluminium profile/ alu. Alloy die casting
Color Original/black/white/Red/ Green/ Orange, or per customers’ requirement
Surface Treatment Zinc plated/Nickle Plated/Black treatment/ Painting/Electrophoretic treatment
Features heavy-duty,adjustable,low noise,easy installation,sliding smoothly,long life,standard,customized,etc.
Application Sliding window and door, Sliding accessories, furniture accessories etc.
Packaing Foil bag+Neutral Carton+Pallet, or per customers’ requirement
MOQ 5000 pcs
Lead Time According to the order q’ty
OEM& ODM Technical drawing or sample is needed

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Q&A

Q1: Are you the manufacturer?
Yes. We are the manufacturer professional in the special bearings, sliding door and window rollers, motorized curtain accessories, plastic parts, stamping parts etc. per customers’ drawings & samples & designs.

Q2: Can you supply the samples? What’s the lead time of   the samples? And how about the samples costs?
Yes, we can offer you the samples. If it’s new project development, it takes around 35 days. Otherwise, it takes around 3-5 days. The samples we offer for free, but you need to charge the freight costs(if there’s new moulds investment, you have to pay for it)

Q3: Can you make the molds as our demands?
Absolutely YES, we could design and make the molds/toolings per your drawings or samples in around 30 days.

Q4:What’s the MOQ?
It depends on your product demands, Contact us to get more info.

Q5:Can you start the small order for our first cooperation?
That’s Ok. After contract confirmation, we could start with an trial order for your quality checking, it’s a way for both sides knowing each other well.

Q6:What kind of service you can offer?
OEM: We supply the products based on your drawings or samples.
ODM: We supply the drawings or 3D samples. Quality inspection report, this will be offered before shipment for your checking. Documents will come together with the goods.

Q7:What’s your package?
We have our standard Neutral cartons for exporting. We can pack with your own design cartons too.

Q8: What’s your mass production delivery date?  
Generally, it takes around 20-30 days after receiving the deposit.

Q9: How do you control your quality in stable production under our requirement?
The confirmation stage: we need to double checking the drawings/samples/designs before production, we will discuss with you to confirm every detail. The samples stage: when we are designing the molds, we will print 3D samples firstly to ensure the products are in the right track. During making the new molds, we use the H13 steel, with heat treatment under EDM/CNC process. Then we will try the new molds in several times to compare the samples in the best situation. Finally offer the samples. The production stage: after samples production, we have the Process Techonology Table for each project, this guarantees our production items are consistent with the samples & drawings. At the same time, We have the QCs to inspect the onsite componenets& assembly parts to pre-handle the quality. Before shipment, we have workers to check the apperance and rotations again, QC will make the inspection report, QA will final authorize the release. All rejected products will be reworked or destroyed.

Q10: What are your terms of payment?
Normally, T/T 30% as deposit after contract confirmation, the balance shall be paid before shipping. LC, Paypal, Western Union is also acceptable.

Q11: What are your common terms of trade?
We accept EXW/FOB/ CFR/ CIF/CIP/CPT/DAP/ DDU/DDP

Q12: What’s your nearst shipping port?
HangZhou/ ZheJiang , China

Q13: Can I mix different items in 1 carton?
Better not, if you want , we could do that per your request, also with special marking to separate them.

Q14: Can you send me the container with different types?
Yes, we can mix the different products in 1 catiner with marking labels for you to find it out easily.

 

Warranty: 5years
Certification: TUV, CE, ISO
Splittable: Splittable
Surface Treatment: Zinc Plated
Material: Nylon
Transport Package: Industrial Package
Samples:
US$ 1/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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pulley

The benefits of using pulleys

A pulley is a mechanical device that converts force into rotation. There are many advantages to using pulleys. Let’s take a look at a few of them. This article will describe the advantages, types, applications, and power sources of pulleys. You can then choose the pulley that best suits your specific needs. If you’re looking for a new tool to help you with a certain task, this article is for you.

Mechanical advantage

The mechanical advantage of a pulley can be defined as the ratio of applied force to the applied force. The mechanical advantage of a pulley can be calculated by considering several factors, including weight and friction. It can be calculated by the force applied per unit length of rope and the number of pulleys used. In a single-circuit system, the force required to lift a heavy object is equal to the user’s body weight.
The mechanical advantage of a pulley can be realized by comparing it to a seesaw. Both uses of rope are suitable for lifting objects. A rope four times heavier than a kilo is four times as effective. Because the forces on both sides of the pulley are equal, a small force is enough to move a large weight a short distance. The same force can be applied to a large mass to lift it several meters.
After introducing the concept of mechanical advantage, learners will practice using the pulley system. In addition to testing the pulley system, they should also calculate its mechanical advantage. Using either the instructor-provided handout or the learner’s workbook, students will determine how easily the pulley system functions. Once they have completed the test, they can discuss their results and how the system can be improved. These courses are best completed as part of a mini-unit or as a standalone main course.
The mechanical advantage of the pulley system is proportional to the number of rope loops. This circuit requires the same force as the dual circuit to lift heavy objects. A single lap requires only a third of the force to lift a double lap, while three laps require almost half the energy required for a single lap. The mechanical advantage of the pulley system becomes constant as the number of cycles increases.
The 3:1 Mechanical Advantage system feels like lifting a 300-pound load with three feet of rope. The three-foot-long rope moves the load one foot high. Understanding the mechanical advantages of pulleys is critical for rescuers when trying to create the perfect pulley system. Ideally, the pulley system will be anchored to a nearby rock, tree, pole or person – if the weight is not too heavy.
pulley

Types of pulleys

There are several types of pulleys. V-belt pulleys are the type commonly used in vehicles and electric motors. “V” pulleys require a “V” belt, and some even have multiple V grooves. “V” pulleys are often used in heavy duty applications for power transmission because they reduce the risk of power slippage.
Composite pulleys combine the properties of fixed and movable pulleys. Compound pulleys are able to change the direction of force while requiring relatively low force to move even the heaviest loads. Mechanical advantage is a measure of the effectiveness of a machine or equipment. It can be divided into three categories: force, distance and mechanics. Once you understand how each type works, you can design complex machines.
Fixed pulleys: These pulleys are the most basic type of pulleys. They use ropes and slotted wheels to move with the lifted object. Because they are so simple to set up, lifting heavy objects is a breeze. Although the moving object feels light, it is actually heavier than it actually is. These pulleys are used in construction cranes, utility elevators and many different industries.
Compound Pulley System: A pulley pulley is a combination of two fixed pulleys and one movable pulley. Compound pulley systems are effective for moving heavy objects because they have the largest force multipliers and are flexible enough to change the direction of the force as needed. Composite pulley systems are commonly used in rock climbing, theater curtains and sailing. If you’re looking for a pulley system, you can start by evaluating the types of pulleys and their uses.
Construction Pulleys: These are the most basic types of pulleys and have wheel rails. These pulleys can be lifted to great heights and attached to chains or ropes. They allow workers to access equipment or materials from greater heights. They are usually mounted on wheels with axles and secured with ropes. They are essential tools for construction workers. There are many different types of pulleys out there.

energy source

Belts and pulleys are mechanical devices used to transmit energy and rotational motion. The belt is connected to the rotating part of the energy source, and the pulley is mounted on the other. One pulley transmits power to the other, while the other changes the direction of the force. Many devices use this combination, including automobiles, stationary generators, and winches. It is used in many home applications, from conveyors to treadmills. Pulleys are also used for curtains in theater halls.
Pulley systems are an essential part of modern industry and everyday life. Pulleys are used in elevators, construction sites and fitness equipment. They are also used in belt-driven generators as backup power. Despite their simple and seemingly humble beginnings, they have become a versatile tool. From lifting heavy objects to guiding wind turbines, pulley systems are widely used in our daily lives.
The main reason why pulleys are so popular is the mechanical advantage they offer. They can lift a lot of weight by applying very little force over longer distances. For example, a small motor can pull 10 meters of cable, while a large motor can pull 1 meter. Also, the work done is equal to the force times the distance traveled, so the energy delivered to the large motor is the same.
The power source for the pulley system can be cables, belts or ropes. The drive element in a pulley system is usually a rope or cable. A belt is a loop of flexible material that transmits motion from one pulley to another. The belt is attached to the shaft and a groove is cut in the pulley. The belt then transfers energy from one pulley to the other through the system.
pulley

application

A pulley is a mechanical device used to lift heavy objects. They reduce the amount of work required to lift heavy objects and are an excellent choice for many applications. There are several different applications for pulleys, including elevators, grinders, planters, ladder extensions, and mountaineering or rock climbing. Let’s take a look at some of the most popular uses for pulleys in modern society. These include:-
A pulley is a mechanical device that changes force. To use, you wrap the rope around it and pull down to lift the object. While this device is very useful, a major limitation of using pulleys is that you still have to apply the same force to lift the object as you would without the pulleys. This is why people use pulleys to move large objects like furniture and cars.
In addition to lifting heavy objects, pulleys are used in elevators, flagpoles and wells. These systems allow people to move heavy objects without straining their backs. Many other examples of pulleys in the home include garage doors, flagpoles, and elevators. They also help raise and lower flagpoles, which can reach several stories high.
There are two basic types of pulleys: movable and fixed. Fixed pulleys are attached to a ceiling or other object using two ropes. Modern elevators and construction cranes use movable pulleys, as do some weight machines in gyms. Composite pulleys combine movable and fixed pulleys to minimize the force required to move heavy objects.
Another type of fixed pulley is the flagpole. A flagpole can support a country, organization, or anything else that needs to be lifted. A taller flagpole creates a prouder moment for those who support it. The operation of the rope and pulley mechanism is very simple. The user simply attaches the flag to the rope, pulls the pulley, and he or she can watch the flag rise and unfold.

China best Customized Heavy Duty Pulley Plastic Nylon POM and Galvanized Steel Sliding Door and Window Wheel Rollers Pulley with U Groove   supplier China best Customized Heavy Duty Pulley Plastic Nylon POM and Galvanized Steel Sliding Door and Window Wheel Rollers Pulley with U Groove   supplier
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