Product Description
Detailed Photos
Product Description
| Item No. | Door and Window Plastic Bearing Pulley |
| Dimensions | OEM ODM |
| Material | Bearing -Chrome steel, carbon steel, stainless steel Plastic part- POM/ Nylon6 /Nylon66 +GF/PU/Rubber 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 | 1000 pcs |
| Lead Time | According to the order q’ty |
| OEM& ODM | Technical drawing or sample is needed |
Company Profile
ABOUT US
CHINAMFG was set up in 1996 and located at HangZhou, a beautiful city in China. Our company is bearing manufacturer&bearing distributor. Since it was first established, CHINAMFG was dedicated in research, development and manufacture of bearings. Now, CHINAMFG has become main and 1 of the first grade suppliers of all kinds of bearings. We could develop the products constructed from different materials, structures, shapes, colors etc.
WELCOME TO THE CLUB!
1. Our rollers are in stable quality with smooth rotation, long life operation, small movement, advanced injection technology engineering etc.
2. The Adjustable Rollers with smooth and long lasting operation, higher performing features like wider adjustment ranges, long rolling life performance, easy installment. It’s available in multiple housing choices with any wheels to fit different aluminnum. Our roller ensure alignment across the full adjustment ranges within built-in retention system.
3. The customized hardware, like plastic parts, stamping patrs, cold forging steel patrs are widely applied in the window and doors, furniture, householders, transmission system, industrial drive system etc.
We are constantly improving and striving for excellent service. We hold a very high regard for our customers, the quality of our products, and our level of customer service.
FAQ
1. who are we?
We are based in ZheJiang , China, start from 2017,sell to North America(1.00%),Africa(1.00%),Western Europe(1.00%),Southern Europe(1.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Bearing cage,Bearing pulley,Plastic products,Miniature bearing,Needle roller bearing
4. why should you buy from us not from other suppliers?
Hardware pulley source factory,20 years professional bearing pulley experience
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,EUR,JPY,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese,Spanish,Japanese,F
Our Advantages
Sliding glass doors are becoming more and more popular, because of the view and natural lighting that they provide. But there can be some difficulty when it comes to maintaine them, such as the rollers have worn out. The key part is knowing which roller matches the original. Many people believe that alternatives can be found by identifying the door manufacturer individually. Actually, Most rollers are generic and used by various door manufacturers.
As the professional manufacturer of sliding rollers, we use various identifying characteristics to determine the best replacement option for your door. In addition to the number of wheels your roller uses to support the door, the presence of dimples, bumps, cut-outs and flared edges on the rollers housing will narrow down replacement options substantially. The way that the assembly installs in the door frame is also vital. The key dimensions to confirm a replacement include the width and height of the roller’s outer housing, as well as the diameter of the wheel. In addition to the diameter of the wheels, the material that they’re made of, steel or nylon, is also a factor. Long-term, metal wheels are known to hold up better but they can also cause the track to wear out faster, especially on heavy doors. Nylon wheels tend to be kinder to the track but may not last as long as their steel counterparts.
Purchase Notice
1.Pls send us an inquiry or leave us a message, there will be a dedicated staff to serve you within 1 hours.
2.You can ask us to take actual photos of the products for you, and free samples would be provided.
3. Welcome to visit our factory to negotiate orders, we will do our best to protect the safety of your business journey.
4. Packaging can be customized according to customer requirements
Finally, Please be sure to click “Contact supplier” to contact us, or “Call us” with any questions that you may have.
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| Certification: | ISO |
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| Manufacturing Process: | Casting |
| Material: | Stainless Steel |
| Samples: |
US$ 0.5/Piece
1 Piece(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How do pulleys function in various types of vehicles and machinery?
Pulleys play crucial roles in numerous types of vehicles and machinery, enabling the transmission of power, control of mechanical systems, and efficient operation. Here’s how pulleys function in various applications:
1. Automotive Engines: In vehicles, pulleys are commonly used in the engine’s accessory drive system. The crankshaft pulley, also known as the harmonic balancer, is connected to the engine’s crankshaft and drives various accessories such as the alternator, power steering pump, and air conditioning compressor. The pulleys enable the transfer of rotational power from the engine to these accessories, allowing them to perform their respective functions.
2. Belt-Driven Systems: Pulleys are extensively used in belt-driven systems across various machinery and equipment. These systems utilize belts, such as V-belts or timing belts, which wrap around pulleys to transfer power. Examples include conveyor systems, industrial machinery, agricultural equipment, and HVAC systems. The pulleys provide the necessary grip and tension to ensure efficient power transmission and drive system operation.
3. Cranes and Hoists: Pulleys are integral components of cranes and hoists, enabling the lifting and movement of heavy loads. Multiple pulleys, often arranged in a block and tackle configuration, are used to create mechanical advantage, reducing the effort required to lift the load. By distributing the load’s weight over multiple strands of rope or cable, pulleys allow for controlled lifting and precise positioning of objects.
4. Construction Equipment: Pulleys are found in various types of construction machinery. For example, in excavators and cranes, pulleys are used in the wire rope systems for lifting and lowering the boom, bucket, or other attachments. Pulleys help in managing the forces involved in these operations, providing smooth and controlled movement.
5. Elevators: Pulleys are essential components in elevator systems. Elevator cars are suspended by steel cables that run over pulleys. These pulleys are connected to an electric motor through a system of gears and sheaves. As the motor rotates the pulleys, the elevator car moves up or down. Pulleys in elevator systems help in efficiently transferring power and maintaining the stability and safety of vertical transportation.
6. Exercise Equipment: Pulleys are widely used in exercise machines and gym equipment to provide resistance and enable adjustable resistance levels. By incorporating pulley systems with different configurations and cable arrangements, exercise equipment can offer a variety of exercises targeting specific muscle groups.
7. Marine Applications: Pulleys are utilized in various marine applications, such as sailboats and winches. Pulleys help in controlling the movement and tension of ropes and cables, enabling sail adjustments, mast raising and lowering, and other rigging operations.
8. Garage Doors: Pulleys are employed in garage door mechanisms to facilitate the smooth opening and closing of the doors. They are used in conjunction with cables or belts, allowing for the transfer of force from the door opener to the door itself.
These examples demonstrate the versatility and importance of pulleys in a wide range of vehicles and machinery. By utilizing pulleys, these systems can achieve efficient power transmission, mechanical advantage, controlled movement, and improved functionality.
Can pulleys be part of renewable energy systems like wind turbines?
Yes, pulleys can indeed be part of renewable energy systems like wind turbines. While wind turbines primarily rely on the force of the wind to generate electricity, pulleys are used in various components to facilitate the efficient conversion of wind energy into electrical power. Here’s how pulleys can be incorporated into wind turbines:
1. Rotor and Blade Pitch Control:
Pulleys are utilized in the rotor and blade pitch control mechanism of wind turbines. The rotor consists of multiple blades that capture the wind’s energy and convert it into rotational motion. To optimize the turbine’s performance, the pitch angle of the blades needs to be adjusted based on wind conditions. Pulleys and cables are employed to control the pitch angle, allowing the blades to be positioned at the optimal angle to maximize power output. The pulley system enables precise and synchronized blade adjustment, ensuring efficient wind capture.
2. Generator System:
In wind turbines, pulleys are also utilized in the generator system. The rotational motion of the turbine’s rotor is transferred to the generator through a series of mechanical components, including pulleys and belts or gears. The pulleys help to increase or decrease the rotational speed and torque as needed to match the generator’s requirements. This mechanical advantage provided by the pulleys ensures that the generator operates at its optimal speed, enhancing the efficiency of electricity generation.
3. Lifting and Maintenance Systems:
Pulleys are often incorporated into the lifting and maintenance systems of wind turbines. Wind turbine components, such as the nacelle (housing the generator and other equipment) and the rotor blades, are large and heavy, requiring periodic inspection, repair, and replacement. Pulley systems are employed to lift and lower these components during maintenance activities. The pulleys, along with cables and hoists, allow for controlled and safe handling of the heavy parts, enabling efficient maintenance and minimizing downtime.
4. Access Systems:
In larger wind turbines, pulleys are utilized in access systems that provide safe and efficient access to various parts of the turbine, including the nacelle and the rotor blades. Climbing systems or platforms equipped with pulleys allow technicians to ascend or descend the turbine structure, providing easy access for inspection, maintenance, and repairs. Pulleys facilitate the movement of personnel and equipment, ensuring the safety and efficiency of wind turbine operations.
By incorporating pulleys into these different aspects of wind turbines, renewable energy systems can benefit from increased efficiency, improved maintenance procedures, and enhanced safety measures. Pulleys contribute to the overall performance and reliability of wind turbines, enabling the harnessing of wind energy for clean and sustainable electricity generation.
How does a fixed pulley differ from a movable pulley?
A fixed pulley and a movable pulley are two distinct types of pulleys that differ in their design and functionality. Here’s a detailed explanation of their differences:
1. Design and Attachment: A fixed pulley is attached to a stationary structure, such as a ceiling or wall, using a mounting bracket or other means. It remains fixed in place and does not move during operation. In contrast, a movable pulley is attached to the load being moved and moves along with it. It is typically suspended by a rope or cable and can freely move up and down.
2. Mechanical Advantage: When it comes to mechanical advantage, a fixed pulley does not provide any advantage. It changes the direction of the force applied but does not reduce the effort required to lift the load. On the other hand, a movable pulley provides mechanical advantage by reducing the effort needed to lift the load. It distributes the load between the rope segments attached to the movable pulley and the fixed point, making it easier to lift heavy objects.
3. Force Distribution: In a fixed pulley, the force applied to one end of the rope or belt is redirected to change the direction of the force. The load is lifted by pulling the opposite end of the rope. In this case, the force required to lift the load is equal to the weight of the load itself. In a movable pulley, the load is attached to the movable pulley itself. The force required to lift the load is reduced because the weight of the load is distributed between the rope segments attached to the movable pulley and the fixed point.
4. Directional Change: Both fixed and movable pulleys are capable of changing the direction of the applied force. However, the primary function of a fixed pulley is to change the direction of force, while a movable pulley combines force direction change with mechanical advantage. The movable pulley allows the operator to exert force in a more convenient direction while requiring less effort to lift the load.
5. Applications: Fixed pulleys are commonly used in combination with other pulleys to create more complex systems, such as block and tackle arrangements. They are often used in scenarios where the primary objective is to change the direction of force. Movable pulleys, on the other hand, are frequently used in systems that require mechanical advantage or a reduction in the effort needed to lift heavy objects. They are often found in applications such as lifting systems, cranes, and elevators.
Overall, the key differences between a fixed pulley and a movable pulley lie in their design, mechanical advantage, force distribution, and applications. While a fixed pulley primarily changes the direction of force, a movable pulley combines force direction change with mechanical advantage, making it easier to lift heavy loads.
editor by CX
2024-03-26
