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China Standard High-Stability Smooth Mute Waterproof Nylon/POM Balls Bearing Pulley 12*28*8mm idler pulley

Product Description

 

Detailed Photos

 

 

Product Description

 

Item No. Plastic POM Ball Bearing
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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Contact Angle: Injection Molding
Aligning: Non-Aligning Bearing
Separated: Unseparated
Samples:
US$ 0.08/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

pulley

How does the diameter of a pulley affect its mechanical advantage?

The diameter of a pulley plays a significant role in determining its mechanical advantage. Mechanical advantage refers to the ratio of the output force or load to the input force or effort applied to the pulley system. Here's how the diameter of a pulley affects its mechanical advantage:

1. Larger Diameter: When the diameter of a pulley increases, the mechanical advantage also increases. A larger diameter means that the circumference of the pulley is greater, allowing a longer length of rope or belt to be wrapped around it. As a result, a larger pulley requires less effort force to lift a given load. This is because the load is distributed over a greater length of rope or belt, reducing the force required to overcome the load.

2. Smaller Diameter: Conversely, when the diameter of a pulley decreases, the mechanical advantage decreases. A smaller diameter means that the circumference of the pulley is reduced, resulting in a shorter length of rope or belt wrapped around it. As a result, a smaller pulley requires more effort force to lift a given load. This is because the load is concentrated over a shorter length of rope or belt, requiring a greater force to overcome the load.

It's important to note that while a larger diameter pulley offers a greater mechanical advantage in terms of reducing the effort force required, it also results in a slower speed of the load being lifted. This is because the longer length of rope or belt requires more input distance to achieve a given output distance. On the other hand, a smaller diameter pulley offers a lower mechanical advantage but allows for a faster speed of the load being lifted.

The mechanical advantage of a pulley system can be calculated using the formula:

Mechanical Advantage = Load / Effort

Where "Load" refers to the weight or force being lifted and "Effort" refers to the force applied to the pulley system. By adjusting the diameter of the pulley, the mechanical advantage can be optimized to suit the specific requirements of the application, balancing the effort force and speed of the load being lifted.

pulley

How are pulleys used in manufacturing processes and assembly lines?

Pulleys play a crucial role in manufacturing processes and assembly lines, facilitating the movement of materials, components, and products. They are utilized in various ways to enhance efficiency, increase productivity, and streamline production. Here's how pulleys are commonly used in manufacturing processes and assembly lines:

1. Conveyor Systems:

Pulleys are extensively employed in conveyor systems, which are integral to manufacturing and assembly lines. Conveyor belts or chains run over pulleys at different points along the line, transporting materials or products from one workstation to another. The pulleys help guide and support the conveyor belts or chains, ensuring smooth and controlled movement. By utilizing pulleys of different sizes or configurations, conveyor systems can be designed to accommodate various layouts, inclines, or speed requirements.

2. Material Handling:

Pulleys are used to facilitate the lifting, lowering, and movement of materials in manufacturing processes. Cranes, hoists, and lifting equipment often incorporate pulley systems to provide mechanical advantage and precise control over heavy loads. The pulleys, along with ropes, cables, or chains, allow operators to lift and position materials with minimal effort and improved safety.

3. Assembly Line Automation:

In automated manufacturing and assembly lines, pulleys are utilized in robotic systems to control the movement of robotic arms. The pulleys are incorporated into the mechanism that guides the cables or belts connected to the robotic arms. By adjusting the position and tension of the pulleys, precise and coordinated movements can be achieved, enabling efficient assembly processes.

4. Tensioning and Alignment:

Pulleys are crucial for maintaining proper tension and alignment in manufacturing processes. Tensioning pulleys are used to apply the appropriate tension to belts or chains, ensuring optimal power transmission and preventing slack or slipping. Alignment pulleys are employed to align belts or chains, minimizing wear, reducing vibrations, and prolonging the life of the components.

5. Power Transmission:

Pulleys are central to power transmission in manufacturing processes and assembly lines. They are used in conjunction with belts, chains, or gears to transfer rotational motion and power from one component to another. By selecting pulleys of different sizes or ratios, the speed and torque can be adjusted to suit specific production requirements.

6. Tool and Machine Positioning:

In manufacturing processes, pulleys are often integrated into tool positioning systems or adjustable machine setups. By using pulleys and cables, tools or machine components can be easily repositioned, allowing for quick changeovers or adjustments to accommodate different workpieces or production tasks.

Overall, pulleys are indispensable in manufacturing processes and assembly lines, enabling efficient material handling, precise movement control, proper tensioning and alignment, power transmission, and flexible tool positioning. Their use contributes to increased productivity, improved workflow, and enhanced automation in the manufacturing industry.

pulley

Can you explain the basic principles of pulley mechanics?

Pulley mechanics are based on a few fundamental principles that govern the operation of pulley systems. Here's an explanation of the basic principles:

1. Mechanical Advantage: The primary principle of pulley mechanics is mechanical advantage. A pulley system allows for the multiplication of force applied to the rope or belt. By distributing the force over multiple segments of the rope or belt, the load becomes easier to lift or move. The mechanical advantage gained depends on the number of pulleys used in the system. The more pulleys in the system, the greater the mechanical advantage.

2. Force Transmission: When a force is applied to one end of the rope or belt, it creates tension that causes the pulley to rotate. As the pulley turns, the force is transmitted to the load attached to the other end of the rope or belt. This force transmission allows for the movement and manipulation of objects in pulley systems.

3. Directional Change: One of the key principles of pulley mechanics is directional change. A pulley system enables the operator to change the direction of the applied force. By redirecting the force along a different path, a pulley system allows for force to be exerted from a more convenient or advantageous position. This directional change is particularly useful in situations where the force needs to be applied vertically, horizontally, or at an angle.

4. Conservation of Energy: Pulley mechanics also adhere to the principle of conservation of energy. The work done on the load by the applied force is equal to the work done against the load's weight. Through the pulley system, the input force is transformed into an output force that moves or lifts the load. The energy input and output remain the same, but the pulley system allows for the distribution and transformation of forces to achieve the desired mechanical advantage.

5. Speed and Torque Conversion: Pulleys can also be used to convert speed and torque in mechanical systems. By varying the size of the pulleys or using pulleys of different diameters, the rotational speed and torque can be adjusted according to the requirements of the system. This speed and torque conversion allows for the optimization of power transmission and the matching of different rotational speeds between input and output components.

6. Multiple Pulley Systems: Pulleys can be combined in systems to achieve increased mechanical advantage or to create complex motion patterns. In systems with multiple pulleys, such as block and tackle arrangements, the load is distributed over several segments of rope or belt, further reducing the effort required to lift heavy objects. These systems are often used in cranes, elevators, and other applications where heavy lifting is necessary.

These basic principles of pulley mechanics form the foundation for the understanding and application of pulleys in mechanical systems. By harnessing mechanical advantage, force transmission, directional change, conservation of energy, and speed/torque conversion, pulley systems provide a versatile means of lifting, moving, and manipulating loads in various applications.

China Standard High-Stability Smooth Mute Waterproof Nylon/POM Balls Bearing Pulley 12*28*8mm   idler pulley	China Standard High-Stability Smooth Mute Waterproof Nylon/POM Balls Bearing Pulley 12*28*8mm   idler pulley
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