| Size | Outside Diameter | Pitch Diameter (4L/A) | Pitch Diameter (5L/B) | Type | Dimension (F) | Dimension (L) | Dimension (P) | Dimension (C) | Pulley Weight |
|---|---|---|---|---|---|---|---|---|---|
| 2BK25 | 2.50″ | 1.90″ | 2.30″ | 1 | 1-3/4″ | 1-31/32″ | 15/32″ | 1/4″ | 1.3 LBS |
| 2BK27 | 2.70″ | 2.10″ | 2.50″ | 1 | 1-3/4″ | 1-31/32″ | 15/32″ | 1/4″ | 1.6 LBS |
| 2BK28 | 2.95″ | 2.20″ | 2.60″ | 1 | 1-3/4″ | 1-31/32″ | 15/32″ | 1/4″ | 1.9 LBS |
| 2BK30 | 3.15″ | 2.40″ | 2.80″ | 1 | 1-3/4″ | 1-31/32″ | 15/32″ | 1/4″ | 2.3 LBS |
| 2BK32 | 3.35″ | 2.60″ | 3.00″ | 1 | 1-3/4″ | 1-31/32″ | 15/32″ | 1/4″ | 2.6 LBS |
| 2BK34 | 3.55″ | 2.80″ | 3.20″ | 1 | 1-3/4″ | 1-31/32″ | 15/32″ | 1/4″ | 2.8 LBS |
| 2BK36 | 3.75″ | 3.00″ | 3.40″ | 1 | 1-3/4″ | 1-31/32″ | 15/32″ | 1/4″ | 3.3 LBS |
| 2BK40 | 3.95″ | 3.20″ | 3.60″ | 2 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 3.3 LBS |
| 2BK45 | 4.25″ | 3.50″ | 3.90″ | 2 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 3.3 LBS |
| 2BK47 | 4.45″ | 3.70″ | 4.10″ | 2 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 3.7 LBS |
| 2BK50 | 4.75″ | 4.00″ | 4.40″ | 2 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 4.1 LBS |
| 2BK52 | 4.95″ | 4.20″ | 4.60″ | 2 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 4.5 LBS |
| 2BK55 | 5.25″ | 4.50″ | 4.90″ | 2 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 4.5 LBS |
| 2BK57 | 5.45″ | 4.70″ | 5.10″ | 2 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 5.1 LBS |
| 2BK60 | 5.75″ | 5.00″ | 5.40″ | 3 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 4.9 LBS |
| 2BK62 | 5.95″ | 5.20″ | 5.60″ | 3 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 4.8 LBS |
| 2BK65 | 6.25″ | 5.50″ | 5.90″ | 3 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 5.0 LBS |
| 2BK67 | 6.45″ | 5.70″ | 6.10″ | 3 | 1-3/4″ | 1-15/32″ | 15/32″ | 3/4″ | 5.0 LBS |
| 2BK70 | 6.75″ | 6.00″ | 6.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 6.6 LBS |
| 2BK80 | 7.75″ | 7.00″ | 7.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 7.2 LBS |
| 2BK90 | 8.75″ | 8.00″ | 8.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 8.4 LBS |
| 2BK100 | 9.75″ | 9.00″ | 9.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 9.4 LBS |
| 2BK110 | 10.75″ | 10.00″ | 10.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 10.4 LBS |
| 2BK120 | 11.75″ | 11.00″ | 11.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 11.8 LBS |
| 2BK130 | 12.75″ | 12.00″ | 12.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 14.9 LBS |
| 2BK140 | 13.75″ | 13.00″ | 13.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 16.3 LBS |
| 2BK160 | 15.75″ | 15.00″ | 15.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 18.0 LBS |
| 2BK190 | 18.75″ | 18.00″ | 18.40″ | 3 | 1-3/4″ | 1-19/32″ | 11/32″ | 1/2″ | 23.3 LBS |
2BK series pulleys can be used with 2-banded A belts, 2-banded B-belts, 2-banded cogged AX belts, 2-banded cogged BX belts, single A, B, 4L, 5L, AX, BX, AA, and BB belts. 2BK series pulleys are commonly known as double groove BK pulleys and range in diameter from 2.50″ to 18.75,” but custom 1s are also available upon request. 2BK series pulleys are typically used in medium to heavy-duty agricultural and industrial applications. Our double v-belt pulleys are manufactured using state-of-the-art techniques combined with premium high-performance and high-strength features like using grade 35 cast iron instead of grade 25.
2BK Series Pulley Size Chart
Our V-belt Pulley includes:
· Light Duty Bored To Size Pulleys(AK,BK,2AK,2BK,3BK series)
· Light Duty Taper Bore Pulleys(AK-H, BK-H,2AK-H,2BK-H series)
· Split taper bushed Pulleys(1TB,2TB,3TB series)
· Heavy Duty Q.D. Pulleys(1B,2B,3B series)
· Light Duty Variable Speed Pulleys(1VP,2VP,1VL,1VM series)
· Single Groove Pulleys(OK, O.L., AL series)
· Made To Order Designs
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 US 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.
Additional information
What Is a Pulley?
The pulley is a wheel mounted on a shaft or axle. Its purpose is to support the movement of a cable that is taut. This cable transfers power to a shaft. However, there are certain safety precautions that you should follow when using a pulley. Read on to learn more! Listed below are common uses and their main parts. Listed below are some of the benefits of using a pulley.
Common uses of a pulley
A pulley is a common mechanical device used to increase the force needed to lift a heavy object. Most commonly, these devices are used in construction equipment. These machines use high-10sion ropes to transfer heavy objects from 1 floor to another. Other common uses of a pulley include buckets and flagpoles. These devices are extremely useful in a wide range of applications. To learn more about the common uses of pulleys, keep reading.
A pulley is a wheel with grooves for holding rope. Its purpose is to change the direction and point at which a pulling force acts. It is usually used in sets to reduce the amount of force needed to lift a load, but the work involved is similar. Pulleys are also used in rock climbing devices. For many applications, a pulley is a vital part of construction.
The most common use of a pulley involves hoisting and lowering a flag. Other examples include clotheslines, bird feeders, and escalators. Pulleys are also commonly used on oil derricks. Many other common applications include hoisting and lowering garage doors. Pulley systems are also used in engines and cranes. For more information, check out our interactive pulley diagram!
Pulleys can also be used to lower total work required for a task. In many cases, a pulley will consist of 2 parts: the pulley hub and the shaft pulley. The hub clamps the shaft pulley, while the pulley itself is connected to the motor or other device. If you’re looking for a pulley, it’s important to learn how it works.
The most common uses for a pulley involve lifting heavy objects, and the mechanism used to lift them is known as a pulley. A pulley is an industrial device that uses 2 wheels to reduce the force needed to lift a weight. The pulley reduces this force by half by allowing the user to pull on the rope 4 times as far. The pulley also allows for a smaller lifting distance.
Main parts of a pulley
A pulley consists of the main element of a system. This is typically a cable, rope, belt, or chain. There are 2 basic types of pulleys – a Driver Pulley and a Follower Pulley. Pulleys are available in small and large sizes. The periphery part of the pulley is called the Face, and the protruding middle part is called the Crown. A pulley’s face can be round, rectangular, or even “V” shaped.
The first pulley was created by the Greek mathematician Archimedes in the third century BCE. These simple machines are made of a rope, an axle, and a wheel. The pulley’s end is attached to a person, object, or motor. These machines can be used in various tasks to lift heavy objects. The pulley is a great mechanical advantage for any lifter.
The ideal mechanical advantage of a pulley is defined by the number of rope segments that pull an object. The higher the number of loops on the rope, the higher the mechanical advantage. The greater the mechanical advantage, the less force is required to move the object. Likewise, the greater the distance the rope traverses, the higher the mechanical advantage of a pulley. There are several different types of pulley, depending on their combination of rope, wheel, and rope.
The basic components of a pulley are the face and hub, and the rope is threaded into the center of the pulley. The pulley is usually made of a rope and can be used to lift heavy weights. It can also be used to apply great force in any direction. Step pulleys have multiple faces, which are fixed in sequence. They can also increase the speed of the driven pulley.
A pulley is a simple machine consisting of a wheel, rope, or chain. These parts are crucial for making moving and lifting easier. Because they change the direction and magnitude of force, they can be a useful tool. Some pulleys even change direction. You can learn more about the pulley by downloading this resource today. The resources are designed to support the new 9-1 GCSEs in Design & Technology and Engineering.
Mechanical advantage
Pulleys have been used to move heavy objects for centuries. When 2 rope sections are used, the weight of a 100kg mass can be moved with only 500 newtons of force. Adding an extra pulley increases the mechanical advantage. If the pulley has 2 wheels, the distance between the rope sections and the wheel grooves is only half the distance, but the mechanical advantage still applies. Adding another pulley increases the mechanical advantage, but can be risky.
Mechanical advantage is the ratio of force used versus force applied. The calculations are made under the assumption that the ropes and weights do not elongate or lose energy due to friction. If the weights are very light, the mechanical advantage is greater than that in the real world. To calculate the mechanical advantage, the weight of the load to be lifted must be the same as the weight of the person using the pulley.
A single moveable pulley has a mechanical advantage of 2. The weight passes around the pulley, and 1 end of the rope is attached to a fixed point. The pulling force is then applied to the other end of the rope. The distance the weight travels doubles, or halved, depending on the direction of the pulley. Adding a second pulley reduces the distance and the effort required to lift it.
There are several ways to calculate the mechanical advantage of a pulley system. Some methods are specific to certain types of systems, while others work for all systems. The T-Method is a good choice in many applications, as it calculates the units of 10sion for each rope segment. Once you have determined the input force, you need to determine the maximum force that will be applied to each component. A compound pulley, for example, will require 4 units of 10sion for each rope segment.
In simple terms, the effort is the amount of force needed to lift the load. This force is measured in newtons (N). A mechanical advantage is often presented without units. If the student does not have this unit, you may need to convert the units to newtons, since 1 kilogram is equal to 10 newtons. If you can’t figure out the units of effort, you can use the KWL chart provided by the teacher.
Safety precautions
There are a few safety precautions you should take when using a pulley. First, always check the SWL (safe working load) before attaching anything to the pulley. This indicates the maximum weight and angle the pulley can safely handle. Second, make sure that your work area is free from people and debris. Third, wear a hard hat to protect your head from blows and falling objects.
Another important consideration is anchoring. Although the pulley reduces the weight of an object, it is not enough to eliminate the weight. This is especially true if you are hoisting a heavy object, such as a motorcycle or lawnmower. It is important to ensure that the anchoring point can support the entire weight of the load. It is also important to follow proper anchoring procedures when using a pulley to lift a motorcycle or lawnmower.
In addition to the safety latch, you should use a tag line to control the suspended load. Remember that a chain pulley block is necessary for vertical lifting. You should also wear personal protective equipment (PPE) while using a pulley to avoid injuries. If your workplace does not have an PPE policy, you should consider implementing a similar policy. These safety guidelines are a good start.
If you are using a pulley to lift heavy objects, make sure to wear gloves. Those who are not familiar with rope-pulling will have an easier time demonstrating how it works. If you are using a rope-pulley system in a classroom, be sure to follow lab safety guidelines. Wear cloth gloves, clear the area, and do not jerk the rope. In addition, never allow yourself to be pulled into the rope by an unfamiliar person.
Another important safety precaution when using a pulley is to ensure that the anchor point for your system is adequate to support the weight of the object being lifted. Check with the manufacturer of the pulley to find out what its weight limit is, as some types of pulleys are designed to lift much heavier weights than others. It is important to follow all manufacturer’s instructions when using a pulley.
