China manufacturer High Quality Upper Gate Pulley for Door Sliding with Hot selling

Product Description

Single Bearing Trapezoid Gate Wheel

Double Bearing Gate Wheel

Laminated Gate Wheel

Hang Gate Wheel

Triangle Gate Wheels/ Rotation Gate Wheels/ Hanging Wheels/ White Zinc Gate Wheels/ Doule Wheels Double Bearing Gate Wheel

      We have already had nealy a decade producting and exporting experience. Since 2014, we have sold our products to dozens of countries all around the world. And we have established a deep cooperative relationship with many customers. 
      We make our products with heart, strive to bring the best quality for customers. So we got a lot of customer approval. After that, we will also strictly control, down-to-earth, and forge ahead.

        1.ZheJiang Joinwin Hardware and Tools Co., Ltd. we have 10 years manufacturing and exporting experience which ranks among the best in China. Mainly sales pliers, spanners, scissors, saws, screwdrivers, wheels, sillicone sealant, tapline and other hand tools. 
        2.Located in HangZhou where is just 180km far from HangZhou Port and many raw material factories around, greatly reduces transportation and procurement costs.
        3.We have professional sales and engineers to provide satisfied service to clients. Our company covers an area of 1000 square meters, has the most advanced production equipment and technology.      
        4.Customer first, team work, embrace change, sincere are our company culture.      
        5.We aim to provide clients more safety and convenient life.

              Pliers                 Adjustable Wrench  Combination Spanners         Hammers               Pruner Scissors        Aviation Tin Snips
      Screwdrivers                    Padlocks                   Hand Saws                       Axe                 Silicone Sealant 
Q1: Can I get a sample?
A1: Yes, the samples are usually free for customers.

Q2: Can you provide OEM service?
A2: Yes, we can produce the goods according to clients’ demands.

Q3: How can you guarantee the quality?
A3: We have advanced equipment and professional engineer and quality inspector to ensure the quality of the goods. And we will send extra goods for insurance. Besides, we have satisfied after-service.

Q4: What is the MOQ?
A4: 500 PCS.

Q5: How long you will finish my order?
A5: Totally in 30 days. (The specific situation depends on the production schedule of the production department.)

Model	A	B	C	D	E	Weight (Y) Units:g	Weight (U) Units:g	Weight (V) Units:g
30×11	35	11	30	45	17	*	*	63
40×14	45	14	38	75	25	192	185	194
50×15	55	15	48	75	25	253	244	263
50×15	60	15	48	85	30	303	292	302
60×17	65	20	58	85	30	400	395	410
70×20	80	20	68	100	35	640	640	665
80×20	85	20	48	100	35	805	785	825
90×20	100	20	88	133	35	1130	1121	1145
100×20	105	20	98	133	35	1350	1338	1363
The data is measured by hand, maybe there are some errors, just for reference.

###

Model	A	B	C	D	E	Weight(Y)	Weight(U)
50MM	55	26	48	85	30	324	320
60MM	65	30	58	85	30	617	580
70MM	80	32	68	100	35	977	954
80MM	85	32	48	100	35	1260	1223
90MM	100	32	88	133	35	1788	1760
100MM	105	32	98	133	35	2100	2078
The data is measured by hand, maybe there are some errors, just for reference.

###

Model	A	B	C	D	Weight(Y/V)	Weight(U)
50mm	48	15	100	26	260	250
60mm	58	17	100	26	390	360
70mm	68	20	136	33	590	570
80mm	78	20	136	33	750	725
90mm	88	20	152	33	1060	1030
100mm	98	20	152	33	1265	1225
The data is measured by hand, maybe there are some errors, just for reference.

###

Model	A	B	C	D	E	F	G	H	I
H25	51	25	M9*50	9	95	79	25	6	27
H38	86	38	M12*70	11	120	118	38	10	32
H55	115	55	M20*85	14	140	159	44	10	15
The data is measured by hand, maybe there are some errors, just for reference.

Model	A	B	C	D	E	Weight (Y) Units:g	Weight (U) Units:g	Weight (V) Units:g
30×11	35	11	30	45	17	*	*	63
40×14	45	14	38	75	25	192	185	194
50×15	55	15	48	75	25	253	244	263
50×15	60	15	48	85	30	303	292	302
60×17	65	20	58	85	30	400	395	410
70×20	80	20	68	100	35	640	640	665
80×20	85	20	48	100	35	805	785	825
90×20	100	20	88	133	35	1130	1121	1145
100×20	105	20	98	133	35	1350	1338	1363
The data is measured by hand, maybe there are some errors, just for reference.

###

Model	A	B	C	D	E	Weight(Y)	Weight(U)
50MM	55	26	48	85	30	324	320
60MM	65	30	58	85	30	617	580
70MM	80	32	68	100	35	977	954
80MM	85	32	48	100	35	1260	1223
90MM	100	32	88	133	35	1788	1760
100MM	105	32	98	133	35	2100	2078
The data is measured by hand, maybe there are some errors, just for reference.

###

Model	A	B	C	D	Weight(Y/V)	Weight(U)
50mm	48	15	100	26	260	250
60mm	58	17	100	26	390	360
70mm	68	20	136	33	590	570
80mm	78	20	136	33	750	725
90mm	88	20	152	33	1060	1030
100mm	98	20	152	33	1265	1225
The data is measured by hand, maybe there are some errors, just for reference.

###

Model	A	B	C	D	E	F	G	H	I
H25	51	25	M9*50	9	95	79	25	6	27
H38	86	38	M12*70	11	120	118	38	10	32
H55	115	55	M20*85	14	140	159	44	10	15
The data is measured by hand, maybe there are some errors, just for reference.

The importance of pulleys

A pulley is a wheel that rides on an axle or axle. The purpose of the pulley is to change the direction of the tensioning cable. The cable then transfers the power from the shaft to the pulley. This article explains the importance of pulleys and demonstrates several different uses for this machine. Also, see the Mechanical Advantages section below for the different types. let’s start.

simple machine

A simple pulley machine is a device used to transfer energy. It consists of a wheel with flexible material on the rim and a rope or chain tied to the other end. Then lift the load using the force applied to the other end. The mechanical advantage of this system is one, as the force applied to the load is the same as the force on the pulley shaft.
A simple pulley machine has many benefits, from the ability to build pyramids to building modern buildings with it. Pulleys are also popular with children because they can perform simple tasks such as lifting toys onto a slide, sliding them off the slide, and lifting them up again. These activities, called “transportation” by child development theorists, allow them to learn about the physics of simple machines in the process.
The mechanism works by using cables to transmit force. The cable is attached to one side of the pulley and the other side is pulled by the user. Lift the load by pulling on one end and the other end of the rope. Simple pulley machines have many commercial and everyday applications, including helping move large objects. They can be fixed or movable, and can be a combination of both. The present invention is a great tool for any beginner or engineer.

axis

The axle wheel is the basic mechanical part that amplifies the force. It may have originally appeared as a tool to lift buckets or heavy objects from a well. Its operation is demonstrated by large and small gears attached to the same shaft. When applied to an object, the force on the large gear F overcomes the force W on the pinion R. The ratio of these two forces is called the mechanical advantage.
The ideal mechanical advantage of shaft pulleys is their radius ratio. A large radius will result in a higher mechanical advantage than a small radius. A pulley is a wheel through which a rope or belt runs. Often the wheels are interconnected with cables or belts for added mechanical advantage. The number of support ropes depends on the desired mechanical advantage of the pulley.
In the design of the axle wheel, the axle is the fulcrum and the outer edge is the handle. In simple terms, wheels and axle pulleys are improved versions of levers. The axle pulley moves the load farther than the lever and connects to the load at the center of the axle. Shaft pulleys are versatile and widely used in construction.

rope or belt

Ropes or pulleys are mechanical devices used to move large masses. The rope supports a large mass and can be moved easily by applying a force equal to one quarter of the mass to the loose end. Quad pulleys have four wheels and provide the mechanical advantage of four wheels. It is often used in factories and workshops. It is also a popular choice in the construction industry. If you are installing a pulley in your vehicle, be sure to follow these simple installation instructions.
First, you need to understand the basics of how a rope or pulley works. The machine consists of one or more wheels that rotate on an axle. The rope or belt is wrapped around the pulley and the force exerted on the rope is spread around the pulley. It then transfers the force from one end of the rope to the other. The pulley system also helps reduce the force required to lift objects.
Another common rope or pulley is the differential pulley. This is similar to a rope pulley, but consists of two pulleys of different radii. The tension in the two halves of the rope supports half the load that the live pulley should carry. These two different types of pulleys are often used together in composite pulley systems.

Mechanical advantage

The mechanical advantage is the ratio of the force used to move the load through the pulley system to the force applied. It has been used to measure the effectiveness of pulley systems, but it also requires assumptions about applied forces and weights. In a simple 1:1 pulley system, the weight lifting the weight is the same as the weight of the person pulling the weight. Adding mechanical advantage can help make up for the lack of manpower.
This advantage stems from the mechanical properties of simple machines. It requires less force and takes up less space and time to accomplish the same task. The same effect can also be achieved by applying less force at a distance. Furthermore, this effect is called the output force ratio. The basic working principle of a pulley system is a rope with a fixed point at one end. The movable pulley can be moved with very little force to achieve the desired effect.
The load can be moved through the vertical entry using a simple pulley system. It can use a simple “pulley block” system with a 2:1 “ladder frame” or a 4:1 with dual pulleys. This can be combined with another simple pulley system to create a compound pulley system. In this case, a simple pulley system is pulling another pulley, giving it a 9:1 mechanical advantage.

Commonly used

You’ve probably seen pulley systems in your kitchen or laundry room. You probably already use it to hang clothes on an adjustable clothesline. You may have seen motor pulleys in the kitchens of commercial buildings. You might even have seen one on a crane. These machines use a pulley system to help them lift heavy loads. The same goes for theaters. Some pulleys are attached to the sides of the stage, enabling the operator to move up and down the stage.
Pulley systems have many uses in the oil and petroleum industry. For example, in the oil and gas industry, pulley systems are used to lay cables. They are arranged in a pulley structure to provide mechanical energy. When the rope is running, two pulleys are hung on the derrick to facilitate smooth running. In these applications, pulleys are very effective in lifting heavy objects.
A pulley is a simple mechanical device that converts mechanical energy into motion. Unlike chains, pulleys are designed to transfer power from one location to another. The force required to lift an object with a pulley is the same as that required by hand. It takes the same amount of force to lift a bucket of water, but it’s more comfortable to pull sideways. A bucket of water weighs the same as when lifted vertically, so it’s easy to see how this mechanism can be useful.

Safety Notice

When using pulleys, you should take several safety precautions to keep your employees and other workers on the job site safe. In addition to wearing a hard hat, you should also wear gloves to protect your hands. Using pulleys can lead to a variety of injuries, so it’s important to keep these precautions in mind before using pulleys. Here are some of the most common:
Pulleys are an important piece of equipment to have on hand when lifting heavy objects. Pulleys not only reduce the force required to lift an object, but also the direction of the force. This is especially important if you are lifting heavy objects, such as a lawn mower or motorcycle. Before starting, it is important to make sure that the anchoring system can support the full weight of the object you are lifting.
When using a pulley system, make sure the anchor points are adequate to support the load. Check with the pulley manufacturer to determine the weight it can safely lift. If the load is too large, composite pulleys can be used instead. For vertical lifts, you should use a sprocket set and wear personal protective equipment. Safety precautions when using pulleys are critical to worker health and safety.