Size Bushing Type Type Pitch Diameter Outside Diameter (E) (F) (L) (M) Sheave Weight (LBS)
5C60SF SF A 6.0″ 6.40″ 1-1/32″ 5-1/4″ 2-1/16″ 2-5/32″ 21
5C70SF SF A 7.0″ 7.40″ 1-1/32″ 5-1/4″ 2-1/16″ 2-5/32″ 26
5C75SF SF A 7.5″ 7.90″ 1-1/32″ 5-1/4″ 2-1/16″ 2-5/32″ 28
5C80E E A 8.0″ 8.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32.” 33
5C85E E A 8.5″ 8.90″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32.” 37
5C90E E A 9.0″ 9.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32.” 40
5C95E E A 9.5″ 9.90″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32.” 42
5C100E E A 10.0″ 10.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32.” 45
5C105E E A 10.5″ 10.90″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32.” 47
5C110E E A 11.0″ 11.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32″ 50
5C120E E A 12.0″ 12.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32″ 53
5C130E E A 13.0″ 13.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32″ 58
5C140E E A 14.0″ 14.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32″ 64
5C160E E A 16.0″ 16.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32″ 73
5C180E E A 18.0″ 18.40″ 1-5/32″ 5-1/4″ 2-3/4″ 1-11/32″ 85
5C200F F D 20.0″ 20.40″ 3/32″ 5-1/4″ 3-3/4″ 1-19/32″ 98
5C240F F D 24.0″ 24.40″ 3/32″ 5-1/4″ 3-3/4″ 1-19/32″ 119
5C270F F D 27.0″ 27.40″ 3/32″ 5-1/4″ 3-3/4″ 1-19/32″ 153
5C300F F D 30.0″ 30.40″ 3/32″ 5-1/4″ 3-3/4″ 1-19/32″ 174
5C360J J A 36.0″ 36.40″ 1/16″ 5-1/4″ 4-5/8″ 9/16″ 206
5C440J J A 44.0″ 44.40″ 1/16″ 5-1/4″ 4-5/8″ 9/16″ 254
5C500J J A 50.0″ 50.40″ 1/16″ 5-1/4″ 4-5/8″ 9/16″ 274

5C series 5-groove QD bushed sheaves are manufactured for C, CX, banded belts, and CC v-belts; they range from 6.40″ to 50.40″ in diameter. Depending on the sheave size, they are made to use SF, E, F, or J QD (quick detachable) bushings, which we also stock. Most of our 5C QD sheaves are manufactured from a high-strength grade 35 cast iron, are phosphate-coated, and are painted for anti-corrosion. All of them are balanced at the factory for smooth machinery operation.

5C QD Sheave Size Chart

V-belt Pulley American Stanard — C Series

The American standard pulley is manufactured according to the American ANSI standard. Its primary material is gray iron, which is suitable for 2L, 3L, 4L, 5L, A, B, C, D, 3V, 5V, 8V belts, J, L, and M multi-ribbed belts. American standard pulley product types: AK, BK, TA, TB, TC, B, C, D, 3V, 5V, 8V, J, L, M, VP, VL, VM. Taper bushing pulleys are used with STB, QD, or TB taper bushings.

How to Choose the Right V-Belt Pulleys?

One of the ever-growing and most widely used product types in the power transmission and automotive industries is the V-belt pulley, also known as the “sheave.” A V-belt pulley is an attachment that transfers energy between axles with the help of a V-belt. However, to keep this vital pair of devices functioning correctly, 1 must secure the appropriate V-belt pulley replacement when an older 1 gets worn down.

Learning to measure a V-belt pulley’s size and calculate its dimensions are simple tasks; however, correctly identifying a V-belt pulley type can be complex. To do this, you need to know the size, measurements, and type of your V-belt pulley so that the replacement will operate adequately. V-belt pulleys come in various styles and options, including A-section, B-section, C-section, D-section, 3V-section, 5V-section, 8V-section, variable pitch, double groove, and metric pulleys. We stock over 8,000 different V-belt pulleys alone.

Technological Processing

Company Profile

HZPT is a professional manufacturer of mechanical parts. Our main products are belt pulleys, sprockets, taper sleeves, coupling, and other transmission parts. Its products are mainly exported to Germany, Britain, France, and other European countries, with an annual export value of 18 million U.S. dollars, accounting for more than 65% of the total output. The annual output value reached 200 million yuan.

Our products all adopt international, European, and American advanced industrial standards, use precise and good processing equipment, develop reasonable production technology, apply efficient and flexible management systems, and improve the quality management system to ensure that the product quality is good and the price is affordable.

Our factory adheres to the enterprise concept of “quality: the basis of enterprise survival, integrity: the basis of enterprise development, service: the source of enterprise development, low price: the instrument of enterprise development.” We are always looking forward to the presence of customers at home and abroad, seeking CZPT benefits and joint cause development.

Warehouse Stock

The warehouse covers an area of 5000 square meters and can provide all kinds of standard models A/B/C/Z, with complete quantity and large quantity in stock. Meanwhile, it accepts all sorts of non-standard customization for drawing production. The daily production capacity is 10 tons, and the delivery time is short.

Packaging & Shipping

Experienced Workers Packing Pulleys Carefully, safe wooden cases keep parts from being injured or damaged during sea or air shipment.


Q1. Are you a manufacturer or a trading company?

A: We are a manufacturer and trading company.

Q2. What is your sample policy?

A: We can supply the sample if we have finished parts in stock, but customers need to pay for the sample cost and shipping fee.

Q3. Can you produce according to the samples?

A: We can produce power transmission parts according to your samples or technical drawings. We can build the molds and fixtures.

Q4. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.

Q5. Can you customize pulleys?

A: Yes, please send us your drawing for an accurate quotation.

Q6. How long is your delivery time and shipment?

A: 1. Sample Lead-times: 10-20 days.

2. Production Lead-times: 30-45 days after the order is confirmed.

Q7. How do you make our business a long-term and good relationship?

A: 1. We keep good quality and competitive price to ensure our customers’ benefits ;

2. We respect every customer as our friend and sincerely do business and make friends with them, no matter where they come from.

Q8: What are your advantages?

1. The most competitive price and good quality.

2. Perfect technical engineers give you the best support.

3. OEM is available.

Additional information

How to use the pulley system

Using a pulley system is a great way to move things around your home, but how do you use a pulley system? Let’s look at the basic equations that describe a pulley system, the types of pulleys, and some safety considerations when using pulleys. Here are some examples. Don’t worry, you’ll find all the information you need in 1 place!

Basic equations of pulley systems

The pulley system consists of pulleys and chords. When the weight of the load is pulled through the rope, it slides through the groove and ends up on the other side. When the weight moves, the applied force must travel nx distance. The distance is in meters. If there are 4 pulleys, the distance the rope will travel will be 2×24. If there are n pulleys, the distance traveled by the weight will be 2n – 1.
The mechanical advantage of the pulley system increases with distance. The greater the distance over which the force is applied, the greater the leverage of the system. For example, if a set of pulleys is used to lift the load, 1 should be attached to the load and the other to the stand. The load itself does not move. Therefore, the distance between the blocks must be shortened, and the length of the line circulating between the pulleys must be shortened.
Another way to think about the acceleration of a pulley system is to think of ropes and ropes as massless and frictionless. Assuming the rope and pulley are massless, they should have the same magnitude and direction of motion. However, in this case the quality of the string is a variable that is not overdone. Therefore, the 10sion vector on the block is labeled with the same variable name as the pulley.
The calculation of the pulley system is relatively simple. Five mechanical advantages of the pulley system can be found. This is because the number of ropes supporting the load is equal to the force exerted on the ropes. When the ropes all move in the same direction, they have 2 mechanical advantages. Alternatively, you can use a combination of movable and fixed pulleys to reduce the force.
When calculating forces in a pulley system, you can use Newton’s laws of motion. Newton’s second law deals with acceleration and force. The 4th law tells us that 10sion and gravity are in equilibrium. This is useful if you need to lift heavy objects. The laws of motion help with calculations and can help you better understand pulley systems.

Types of pulleys

Different types of pulleys are commonly used for various purposes, including lifting. Some pulleys are flexible, which means they can move freely around a central axis and can change the direction of force. Some are fixed, such as hinges, and are usually used for heavier loads. Others are movable, such as coiled ropes. Whatever the purpose, pulleys are very useful in raising and lowering objects.
Pulleys are common in many different applications, from elevators and cargo lift systems to lights and curtains. They are also used in sewing machine motors and sliding doors. Garage and patio doors are often equipped with pulleys. Rock climbers use a pulley system to climb rocks safely. These pulley systems have different types of pinions that allow them to balance weight and force direction.
The most common type of pulley is the pulley pulley system. The pulley system utilizes mechanical advantages to lift weight. Archimedes is thought to have discovered the pulley around 250 BC. in ancient Sicily. Mesopotamians also used pulleys, they used ropes to lift water and windmills. Pulley systems can even be found at Stonehenge.
Another type of pulley is called a compound pulley. It consists of a set of parallel pulleys that increase the force required to move large objects. This type is most commonly used in rock climbing and sailing, while composite pulleys can also be found in theater curtains. If you’re wondering the difference between these 2 types of pulleys, here’s a quick overview:

Mechanical Advantages of Pulley Systems

Pulley systems offer significant mechanical advantages. The ability of the system to reduce the effort required to lift weights increases with the number of rope loops. This advantage is proportional to the number of loops in the system. If the rope had only 1 loop, then a single weight would require the same amount of force to pull. But by adding extra cycles, the force required will be reduced.
The pulley system has the advantage of changing the direction of the force. This makes it easier to move heavy objects. They come in both fixed and mobile. Pulleys are used in many engineering applications because they can be combined with other mechanisms. If you want to know what a pulley can do, read on! Here are some examples. Therefore, you will understand how they are used in engineering.
Single-acting pulleys do not change direction, but compound pulleys do. Their mechanical advantage is 6. The compound pulley system consists of a movable pulley and a fixed pulley. The mechanical advantage of the pulley system increases as the number of movable wheels decreases. So if you have 2 wheels, you need twice as much force to lift the same weight because you need a movable pulley.
The mechanical advantage of a pulley system can be maximized by adding more pulleys or rope lengths. For example, if you have a single pulley system, the mechanical advantage is 1 of the smallest. By using 2 or 3 pulleys, up to 5 times the mechanical advantage can be achieved. You can also gain up to 10 times the mechanical advantage by using multiple pulley systems.
The use of a single movable pulley system also adds to the mechanical advantage of the pulley system. In this case, you don’t have to change the direction of the force to lift the weight. In contrast, a movable pulley system requires you to move the rope farther to generate the same force. Using a compound pulley system allows you to lift heavy loads with ease.

Safety Issues When Using Pulley Systems

Pulleys have an incredibly unique structure, consisting of a disc with a groove in the middle and a shaft running through it. A rope or cord is attached to 1 end of a pulley that turns when force is applied. The other end of the rope is attached to the load. This mechanical advantage means that it is much easier to pull an object using the pulley system than to lift the same object by hand.
Although pulley systems are a common part of many manufacturing processes, some employers do not train their workers to use them properly or install protection to prevent injury. It is important to wear proper PPE and follow standard laboratory safety practices during pulley system activities. Make sure any support structures are strong enough to handle the weight and weight of the rope or rope. If you do fall, be sure to contact your employer immediately.

Tension pulley

As one of the tension pulley manufacturers, suppliers, and exporters of mechanical products, We offer cast pulleys and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of tension pulley.

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