Tag Archives: door pulley

China Best Sales Manufacturer′ S Direct Selling U-Groove Bearing Pulley U0627-9 PA Rubber Coated Bearing Door and Window Movable Pulley pulley block

Product Description


Product Description

Product Name: Sliding Roller HN-U0627-9
Dimensions: ID=6mm;  OD=27mm;  Height=9mm
Outside Material: Polyformaldehyde (POM), Polyamide(PA6, PA66, Nylon), Polypropylene(PP),  Polycarbonate(PC), Polyurethane(PU)
Insert Material: Carbon Steel, Chrome Steel, Stainless Steel
Color: All colors available

Profile Type:U Groove
Surface Treatment: Lathing 
Structure: HN-625ZZ(ID=6mm, OD=27mm, Width=9mm)bearing injected with POM
Service: OEM&ODM 
Experience: With 15 years manufacturing history 

1) Built-in precise micro bearing;
2) Low noise, elegant performance and rolling smoothly;
3) Superior in quality and moderate in price;
4) We can supply both standard products and customized items according to the customers’ special requirements.
5) We can provide free samples for your reference.

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


Payment & Packaging &Delivery:

Payment Terms:    

1) 100% T/T
2) 30%   T/T in advance, 70% against copy of BL
3) Paypal
Packaging Details: Standard export packing (Plastic bag, cartons and pallets or wooden case); 
                   As customers’ requirement
Delivery Port: HangZhou / ZheJiang
Delivery Time: Normally ready goods and stock within 30 days or as the customer’s request

PS:  1) material and color can according to customers’ requirement.
        2) we can make different size as per customers’ requirement.

Company Profile




Q: Are you the manufacturer?

A: Yes, we are a professional manufacturer focused on door and window roller pulleys for over 15 years.

Q: Do you offer free samples?
A: Yes, we are very glad to offer free samples for you to check the quality.

Q: Can we make our own color box?
A: Yes, if the order quantity reaches 1000 sets, we can make a customized color box for you.

Q: Can we print our logo on the products?
A: Yes, we can print your logo on the products according to your design.

Q: How does your factory do regarding quality control?
A: 80% of the staff has 10 years experience, a mature skilled technical team, and a complete quality management system to ensure high quality.

Q: What is the after-sale service for the sliding rollers?
A: We have online technical support. If it is a quality problem, we will replace the broken ones with new ones.

Q: How long is the production time?
A: For samples in stock, shipped in 2 days. if not in stock, the lead time is in 7 days. For mass production, the lead time is around 15 days after receiving the deposit payment.

Q: How about the shipment?
A: For small orders, we can ship them by DHL, FedEx, UPS, TNT, etc. For mass production orders, we can ship them by sea or by air. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle: /
Aligning: Bearing
Separated: Unseparated
US$ 0/Piece
1 Piece(Min.Order)


Order Sample



Customized Request

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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

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

bearing pulley

Can bearing pulleys be customized or adapted for specific industrial needs?

Yes, bearing pulleys can be customized or adapted to meet specific industrial needs. Manufacturers often offer customization options to tailor bearing pulleys for different applications. Here are some ways in which bearing pulleys can be customized or adapted:

1. Bearing Selection:

Depending on the specific industrial needs, different types of bearings can be selected for bearing pulleys. Manufacturers can offer a range of bearing options, including deep groove ball bearings, angular contact bearings, cylindrical roller bearings, or tapered roller bearings. The selection of the bearing type and size is based on factors such as load requirements, rotational speed, and environmental conditions.

2. Material Selection:

The choice of materials for bearing pulleys can be customized to suit specific industrial needs. Different materials, such as steel, stainless steel, or thermoplastics, can be used based on factors like corrosion resistance, temperature resistance, weight reduction, or specific industry requirements (e.g., food-grade materials for the food industry).

3. Coatings and Surface Treatments:

Bearing pulleys can be customized with various coatings or surface treatments to enhance their performance or protect them from specific environmental conditions. For example, pulleys can be coated with corrosion-resistant materials, such as zinc or nickel plating, or undergo surface treatments like black oxide treatment for improved wear resistance.

4. Sealing Options:

Manufacturers can provide different sealing options for bearing pulleys to prevent the ingress of contaminants or to ensure compatibility with specific operating environments. Sealing options may include shields, seals, or labyrinth seals, which can be selected based on the desired level of protection against dust, moisture, or other contaminants.

5. Size and Configuration:

Bearing pulleys can be customized in terms of size, configuration, and geometry to fit specific installation requirements. Different diameters, widths, or groove profiles can be chosen to accommodate the belt size, tension requirements, or space limitations of the application.

6. Integration with Accessories:

Depending on the industrial needs, bearing pulleys can be customized to integrate with various accessories or components. This may include adding flanges, keyways, set screws, or specific mounting arrangements to facilitate easy installation, alignment, or connection with other equipment in the system.

Overall, bearing pulleys can be customized or adapted in terms of bearing selection, material choice, coatings, sealing options, size, configuration, and integration with accessories. Working closely with manufacturers or bearing experts can help identify the most suitable customization options to meet specific industrial needs and optimize the performance and reliability of the bearing pulley system.

bearing pulley

How do bearing pulleys contribute to the smooth movement of conveyor systems?

Bearing pulleys play a crucial role in ensuring the smooth movement of conveyor systems. They provide support, guidance, and efficient power transmission for the conveyor belts. Here’s how bearing pulleys contribute to the smooth operation of conveyor systems:

1. Support and Load Distribution:

Bearing pulleys are designed to support the weight of the conveyor belt and the conveyed materials. They are typically mounted on shafts and positioned at strategic locations along the conveyor system. The pulleys distribute the load evenly across the belt, preventing sagging or excessive tension that could cause disruptions in the movement of the belt.

2. Belt Alignment and Tracking:

Bearing pulleys help maintain proper alignment and tracking of the conveyor belt. The pulleys are usually equipped with self-aligning bearings that allow them to adjust and align with the belt’s direction. This ensures that the belt remains centered on the pulleys, reducing friction and minimizing the risk of belt misalignment or slippage.

3. Power Transmission:

Bearing pulleys transmit rotational power from the drive system to the conveyor belt. They are connected to motor-driven shafts or other power sources and provide the necessary torque to move the belt. The smooth rotation of the pulleys, facilitated by high-quality bearings, enables efficient power transfer and ensures consistent belt speed and movement.

4. Reduced Friction and Wear:

The use of bearings in pulleys reduces friction between the pulley and the belt, as well as between the pulley and the supporting structure. This minimizes energy losses and wear on the components, extending the lifespan of the conveyor system. Low-friction bearings also contribute to smoother operation and reduce the need for frequent maintenance and replacement.

5. Noise and Vibration Reduction:

Bearing pulleys help dampen noise and vibrations generated during the operation of conveyor systems. The smooth rotation and proper alignment of the pulleys, combined with the use of vibration-resistant bearings, contribute to a quieter and more stable conveyor system.

By providing support, guidance, efficient power transmission, and minimizing friction and wear, bearing pulleys contribute significantly to the smooth movement of conveyor systems. These components ensure reliable and uninterrupted material handling, enhancing the overall productivity and efficiency of industrial operations.

bearing pulley

Can you explain the role of bearings in pulleys and their significance?

Bearings play a crucial role in pulleys by reducing friction and facilitating smooth rotation. Their significance lies in ensuring efficient power transmission, minimizing wear and tear, and improving the overall performance of pulley systems. Let’s delve into the details of the role of bearings in pulleys:

1. Friction Reduction:

Bearings are designed to reduce friction between moving parts. In the context of pulleys, bearings are incorporated into the pulley’s hub to support the rotational motion. By providing a low-friction interface, bearings enable the pulley wheel to rotate smoothly with minimal resistance. This friction reduction is essential for optimizing power transfer and reducing energy losses within the system.

2. Smooth Operation:

The presence of bearings ensures smooth operation of pulley systems. Without bearings, the contact between the pulley wheel and the axle or shaft would result in increased friction, leading to jerky or inefficient motion. Bearings facilitate the rotation of the pulley wheel with reduced friction, resulting in smoother and more reliable operation.

3. Load Support:

Bearings in pulleys provide crucial support for the loads applied to the system. Pulleys are often subjected to significant forces and loads, such as the tension in a conveyor belt or the weight being lifted in a pulley-based lifting system. Bearings distribute these loads evenly, preventing excessive stress on specific points and ensuring the load is spread across a larger surface area. This load support helps prevent premature wear, deformation, or failure of the pulley system.

4. Longevity and Reliability:

The presence of bearings significantly enhances the longevity and reliability of pulleys. By reducing friction and evenly distributing loads, bearings minimize wear and tear on the pulley components. This leads to increased durability and extends the operational lifespan of the pulley system. Bearings also help to minimize the risk of component failure, providing a more reliable and dependable mechanical system.

5. Energy Efficiency:

Bearings contribute to the energy efficiency of pulley systems. The reduced friction achieved by bearings translates to lower energy losses during power transmission. By minimizing frictional resistance, the system requires less force or energy input to achieve the desired output. This improved energy efficiency can have economic and environmental benefits, particularly in large-scale industrial applications where pulley systems are extensively used.

6. Versatility and Application:

Bearings in pulleys enable their application in a wide range of industries and systems. From conveyor belts and lifting mechanisms to automotive engines and gym equipment, pulley systems with bearings are utilized in various sectors. The versatility of bearings allows them to accommodate different loads, speeds, and operating conditions, making them suitable for diverse applications.

In summary, bearings play a vital role in pulleys by reducing friction, facilitating smooth rotation, supporting loads, and improving overall performance. Their significance lies in ensuring efficient power transmission, enhancing longevity and reliability, promoting energy efficiency, and enabling the versatility of pulley systems in numerous applications.

China Best Sales Manufacturer′ S Direct Selling U-Groove Bearing Pulley U0627-9 PA Rubber Coated Bearing Door and Window Movable Pulley   pulley block	China Best Sales Manufacturer′ S Direct Selling U-Groove Bearing Pulley U0627-9 PA Rubber Coated Bearing Door and Window Movable Pulley   pulley block
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