Tag Archives: double pulley

China Best Sales Fixed Nylon Roller Pulley with Double Roller for Door and Window (ML-DD015) idler pulley

Product Description

HangZhou CHINAMFG PULLEY MANUFACTURE CO., LTD. has been specialized in manufacturing Plastic Pulley/Rollers, Die-punching Pulley/Bearing, and Non-standard Bearings for about 25 years. It is located in HangZhou city of ZHangZhoug Province, which has convenient transportation benefited from Nignbo Seaport, HangZhou International Airport and the highway networks. Our company covers an area of 7000 m², with building area of 10500 m². Relying on advanced processing equipments and technology, and strict inspection system, our company is able to provide good-quality and competitive products, and has gained a good reputation among customers.
We are committed  to developing  and designing  different  kinds of non-standard pulley  bearings, with an annual production  capacity  of 120 million sets. We export to more than 70 countries  and areas, like USA, Canada, Spain, Germany, France and Italy, etc.
Our company maintains our quality system to ISO 9001:2000, and has been audited by SGS for our production operations. We will continuously seek to provide our customers with good-quality products, excellent service and most competitive price. We look CHINAMFG to building long-term business relationship with you and achieving our mutual benefits.

About us

 

name Fixed Nylon Roller Pulley with Double Roller for Door and Window (ML-DD015)
Brand  name According to customers’ requirements
Size 153*11*22.5
(As per the customer’s technic drawing or samples)
material pom,pa6,pa66,nylon,pvc,abs…wheels,Aluminium,Zinc,Stainless steel frame
Technical process bearing production assembling,zinc plating,injection,turning
Color orange,white,black,yellow
Types customized
MOQ 3000 pcs
Lead time Deponds on quantity
Payment terms A:100% TT
B: 30% T/T in advance .70% against copy of  B/L
Application caster wheel , small pulley , window , sliding door ,door closet wardrobe system…
Product Description 1.Item No.: as shown in the picture.
2.Material: steel/zinc/aluminum/plastic bracket + ball bearing / needle bearing wheel
3.For some models, the height of the roller is adjustable.
4.Color of the wheel: red, green, white, orange, etc.
5.Application: sliding door and window, binds, rolling shutters, furniture, conveyor belt, etc.
6.Normal packing: poly bag + outer carton

 

Product Description

1.Item No.: as shown in the picture.
2.Material: steel/zinc/aluminum/plastic bracket + ball bearing / needle bearing wheel
3.For some models, the height of the roller is adjustable.
4.Color of the wheel: red, green, white, orange, etc.
5.Application: sliding door and window, binds, rolling shutters, furniture, conveyor belt, etc.
6.Normal packing: poly bag + outer carton

Contact Us

HangZhou CHINAMFG Pulley Manufacture Co., Ltd.

WEB: http://nbminli /  
ADDRESS: No.9 CHINAMFG Road, CHINAMFG Industrial Zone, Xihu (West Lake) Dis. District, HangZhou, China

Comparable products

 

FAQ

Q: How to get a quotation and start business relationship with your company?
 A: Please send us email and our sales representive will contact you as soon as we receive your email.
Q: How to receive a quotaion in the shortest time?
 A: When you send us an enquiry, please try to provide more details, such as product size, photo or drawing, order quantity, etc. 
Q: How to start an OEM project with your company?
 A: Please send us your designed drawings or original samples so that we can offer a quotation first. If all details are confirmed, we will arrange sample production once received your deposit .
Q: What’s your MOQ?
A: The MOQ depends on the design and production processes of the products. Nomally our company MOQ is 10000pc , but it can be much more or less depending on different product types. Therefore, we recommend you to tell us your required quantity first.
Q:How long can I receive an order?
A: That depends on the specific items and your order quantity. The lead time varies from 30 to 90 days.

Why choose us

1.Professional experience: almost 20 years’ expenience in non-standard bearings, rollers, pulleys, and other plastic accessories for door and window.
2.Popular over the world: over 20 market countries.
3.Advantage: good quality with competitive price.
4.OEM offered: technical drawings, samples or photos are needed.

For more information, please visit http://nbminli /  

 

Shipping Cost:

Estimated freight per unit.



To be negotiated
After-sales Service: Online Technical Support
Warranty: 2 Year
Certification: ISO, RoHS
Samples:
US$ 1/Piece
1 Piece(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

fixed pulley

What are some real-world examples of fixed pulley applications in various industries?

Fixed pulleys find a wide range of applications in various industries. Here are some real-world examples of how fixed pulleys are used in different industries:

  • Construction Industry: Fixed pulleys are commonly used in the construction industry for lifting and moving heavy materials and equipment. They are employed in cranes, hoists, and lifting systems to raise construction materials to different heights, facilitating tasks such as erecting steel beams, pouring concrete, or installing large building components.
  • Shipping and Maritime Industry: The shipping and maritime industry extensively utilizes fixed pulleys in various applications. They are used in dockside cranes, shipboard cranes, and derricks for loading and unloading cargo containers, heavy machinery, and other goods onto or off of ships. Fixed pulleys are also employed in ship rigging systems for raising and lowering sails and maneuvering the ship’s masts and booms.
  • Theater and Entertainment Industry: In the theater and entertainment industry, fixed pulleys are utilized in stage rigging systems. They are employed to raise and lower scenery, backdrops, lighting fixtures, and other equipment during performances. Fixed pulleys allow for smooth and controlled movement of objects, contributing to the overall visual and technical aspects of stage productions.
  • Automotive Industry: Fixed pulleys are used in automotive manufacturing and repair processes. They are employed in engine hoists and lifts to raise and lower heavy engines during installation or removal. Fixed pulleys are also used in vehicle recovery systems, such as winches, for pulling stuck or disabled vehicles out of challenging terrain.
  • Agriculture and Farming: In the agriculture and farming sector, fixed pulleys are utilized in various applications. They are used in barns and agricultural buildings for lifting and moving hay bales, feed bags, and other heavy items. Fixed pulleys are also employed in farm equipment, such as conveyor systems, grain elevators, and irrigation systems, to assist in the transportation and distribution of crops and agricultural products.
  • Mining and Extraction: Fixed pulleys play a crucial role in the mining and extraction industry. They are used in conveyor systems to transport mined materials from the extraction site to processing areas or storage facilities. Fixed pulleys are also employed in hoisting systems for lifting mining equipment, ore, and other heavy loads to the surface.
  • Warehouse and Logistics: In warehouse and logistics operations, fixed pulleys are utilized to facilitate the movement and storage of goods. They are employed in conveyor systems for efficient material handling, enabling the automated transport of packages, boxes, and pallets. Fixed pulleys are also used in vertical lift modules (VLMs) and automated storage and retrieval systems (AS/RS) to retrieve and store items at different levels.

These are just a few examples of how fixed pulleys are applied in various industries. The versatility and mechanical advantages provided by fixed pulley systems make them valuable tools for lifting, moving, and controlling heavy loads, enhancing efficiency, and improving safety in a wide range of industrial applications.

fixed pulley

How does the configuration of sheaves on a fixed pulley affect its performance?

The configuration of sheaves on a fixed pulley plays a crucial role in determining its performance and functionality. Here’s a detailed explanation of how the configuration of sheaves affects the performance of a fixed pulley:

The term “sheave” refers to the grooved wheel or pulley that is a key component of a fixed pulley. The configuration of sheaves refers to the arrangement and number of sheaves used in a fixed pulley system. The following factors are influenced by the configuration of sheaves:

  • Mechanical Advantage: The configuration of sheaves directly affects the mechanical advantage provided by the fixed pulley system. Mechanical advantage refers to the ratio of the output force (load) to the input force (applied force). By increasing the number of sheaves in the system, the mechanical advantage can be enhanced. For example, a compound pulley system with multiple sheaves can significantly reduce the amount of force required to lift a heavy load.
  • Efficiency: The configuration of sheaves can impact the efficiency of a fixed pulley system. Efficiency refers to the ratio of output work to input work. In general, the more sheaves in the system, the greater the frictional losses and the lower the overall efficiency of the system. However, using high-quality bearings and proper lubrication can help minimize friction and improve efficiency.
  • Load Capacity: The configuration of sheaves also affects the load capacity of a fixed pulley system. By distributing the load across multiple sheaves, the system can handle heavier loads without compromising safety or performance. The load capacity is influenced by factors such as the strength of the sheaves, the material of the sheaves, and the construction of the pulley system.
  • Flexibility and Directional Control: The configuration of sheaves can impact the flexibility and directional control of a fixed pulley system. By arranging the sheaves in different configurations, it is possible to achieve specific movement patterns or change the direction of the applied force. This flexibility and directional control are particularly useful in tasks that require precise positioning or movement of objects.
  • Space and Weight: The configuration of sheaves can also affect the space and weight requirements of a fixed pulley system. Adding more sheaves to the system may increase its size and weight. This factor needs to be considered, especially in applications where space is limited or where portability is important.

It’s important to note that the configuration of sheaves is not limited to a single type or arrangement. Different pulley systems can have varying numbers and arrangements of sheaves, depending on the specific task requirements and desired outcomes. Manufacturers often provide guidelines and recommendations for the optimal configuration of sheaves based on the intended use of the fixed pulley system.

In summary, the configuration of sheaves on a fixed pulley significantly affects its performance. It determines the mechanical advantage, efficiency, load capacity, flexibility, directional control, space requirements, and weight of the pulley system. By carefully considering the configuration of sheaves, users can tailor the system to meet their specific needs and achieve optimal performance in various applications.

fixed pulley

What is a fixed pulley, and how is it used in mechanical systems?

A fixed pulley is a type of pulley that is stationary and does not move. It consists of a grooved wheel mounted on a fixed axle or support. Here’s a detailed explanation of what a fixed pulley is and how it is used in mechanical systems:

A fixed pulley is the simplest form of pulley and is often used in mechanical systems for various purposes. Here are the key characteristics and uses of fixed pulleys:

  • Structure: A fixed pulley consists of a wheel with a grooved rim and a central axle or support. The wheel is designed to rotate freely around the axle or support. The groove in the rim accommodates a rope, cable, or belt, allowing it to move along the circumference of the wheel.
  • Function: The primary function of a fixed pulley is to change the direction of a force applied to the rope or cable. When a force is applied downward on one side of the rope, the fixed pulley redirects the force upward on the other side. It does not provide any mechanical advantage or change the magnitude of the force.
  • Usage: Fixed pulleys are commonly used in mechanical systems for various purposes, including:
    • Lifting and lowering loads: Fixed pulleys are often used in lifting systems to change the direction of the force applied to the load. For example, in a block and tackle arrangement, multiple fixed pulleys can be combined with movable pulleys to create a mechanical advantage and facilitate the lifting of heavy loads.
    • Tensioning and guiding: Fixed pulleys are used to maintain tension in belts or ropes and guide them along a desired path. They help prevent slack or excessive movement in the system and ensure smooth operation.
    • Transferring power: Fixed pulleys are used in power transmission systems, such as in engines or machinery. They guide and redirect belts or ropes to transfer rotational motion or power from one component to another.
    • Creating force multipliers: While a single fixed pulley does not provide a mechanical advantage, it can be combined with other pulleys, such as movable pulleys or compound pulley systems, to create force multipliers and increase the mechanical advantage in lifting or pulling applications.
  • Advantages: Fixed pulleys offer several advantages in mechanical systems, including their simplicity, ease of installation, and low maintenance requirements. They are often cost-effective solutions for changing the direction of forces or guiding ropes or belts in various applications.
  • Limitations: Fixed pulleys have limitations in terms of not providing any mechanical advantage to the force applied. They do not reduce the effort required to lift or move a load. To achieve a mechanical advantage, fixed pulleys need to be combined with other pulleys in a system.

In summary, a fixed pulley is a stationary pulley that changes the direction of a force applied to a rope or cable. It is used in mechanical systems for lifting, tensioning, power transmission, and force multiplication purposes. Fixed pulleys offer simplicity, easy installation, and low maintenance, but they do not provide a mechanical advantage on their own. To achieve a mechanical advantage, fixed pulleys can be combined with other pulleys in various configurations.

China Best Sales Fixed Nylon Roller Pulley with Double Roller for Door and Window (ML-DD015)   idler pulley	China Best Sales Fixed Nylon Roller Pulley with Double Roller for Door and Window (ML-DD015)   idler pulley
editor by CX