China Standard China Great Price Deep Groove Ball Bearing 6200 6201 Caster Metal Pulley Wheel with Bearing pulley bearing

Product Description

We offer a wide variety of precision machining capabilities including high quality precision machined parts,
Mechanical assemblies,and cutom fabrication for automobile,textile machinery,construction machinery etc.
Our manufacturing and process capabilities are ISO9000 Certified.

Heavy duty needle roller bearing is composed of 1 or 2 rings and needle roller group with cage. According to different applications, it can be divided into bearings with or without inner rings. Therefore, the CHINAMFG ring needle roller bearing can meet the requirements of light weight, small space occupation and high power transmission. The CHINAMFG ring needle roller bearing has smaller volume and higher bearing capacity. Structure type outer ring double rib (or double lock ring) with cage needle roller bearing Na, NAV, NKI type can be respectively installed with inner ring and outer ring (with lock ring, full set of needle roller and cage), with high authorized speed, which can be divided into single row and double row. If the shaft cannot be used as a raceway, i.e. if it is not possible or economical to grind the shaft for hardening, this type of needle roller bearing with inner ring can be used


Characteristic of heavy duty needle roller bearing





Basic Load Ratings






















NK 5/10TN










NK 6/10TN










NK 6/12TN










NK 7/10TN










NK 8/12TN










NK 9/12TN










Custom size requirement are also available



Our advantage:
1.The original 100% factory, more than 10 years’ production experience
2.Produce and process products according to your drawings and requirement.
3.All kinds of surface treatment available,such as anodizing,power coating,painting,polishing and etc.
4.Our professional R&D and QC team can strictily control the product quality to meet your requirement.
5.Our products are of high quality at cheap price,and delivered on time.

Manufacturing strength & Vehicle processing line

1.Professional operators

2.Adopting advanced CNC machine tools in Japan

3.Totally enclosed production workshop

4.Experienced managers

5.Digital control production line

6.Advanced level of technology



Production Detection

1.Complete testing facilities

2.Perfect measurement methods

3.Perfect production detection methods

4.Strong QC team,conduct comprehensive quality control

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Customized: Customized
Certification: Ts16949
Standard Parts: Customized
Universal: Customized
Type: Customized
Material: Customized
US$ 0/Piece
1 Piece(Min.Order)

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wheel pulley

What is the role of wheel pulleys in HVAC systems and air conditioning units?

Wheel pulleys serve important functions in HVAC systems and air conditioning units, contributing to their overall operation and efficiency. Here’s a detailed explanation:

1. Blower Motor Operation:

In HVAC systems and air conditioning units, wheel pulleys are utilized to drive the blower motor. The blower motor is responsible for circulating air through the system, facilitating the movement of conditioned air into the desired space. The wheel pulley, often connected to the motor shaft, transfers rotational motion from the motor to the blower wheel. This enables the blower wheel to spin and generate the necessary airflow for proper ventilation and temperature control.

2. Fan Speed Control:

Wheel pulleys play a role in controlling the speed of fans or blowers in HVAC systems. By employing pulleys of different sizes, the rotational speed of the blower wheel can be adjusted. A larger pulley size results in slower fan speed, while a smaller pulley size increases the speed. This allows for precise control of airflow and enables the HVAC system to adapt to varying cooling or heating requirements in different scenarios.

3. Belt-Driven Systems:

HVAC systems often utilize belt-driven mechanisms, where wheel pulleys are an integral component. A belt connects the motor’s pulley to the pulley on the blower wheel, allowing power transmission between the two components. Wheel pulleys ensure proper engagement with the belt, maintaining an effective grip and minimizing slippage. This reliable power transmission is crucial for the consistent operation of the blower motor and the smooth functioning of the HVAC system.

4. Tension and Alignment:

Wheel pulleys in HVAC systems help maintain proper tension and alignment of belts. Tensioning mechanisms, such as adjustable pulley positions or tensioners, are employed to ensure optimal tension in the belts. Proper tension prevents belt slippage and ensures that the belts remain tightly engaged with the wheel pulleys. Additionally, wheel pulleys may incorporate features like crowned surfaces or tracking guides to aid in belt alignment, reducing the risk of misalignment and optimizing the system’s performance.

5. Reduced Vibration and Noise:

Wheel pulleys contribute to the smooth and quiet operation of HVAC systems. They are often equipped with bearings or bushings that reduce friction and minimize vibrations. The smooth rotation of wheel pulleys reduces noise levels, ensuring a more comfortable and peaceful environment in buildings where the HVAC system is installed.

6. Maintenance and Replacement:

Proper maintenance and timely replacement of wheel pulleys are important in HVAC systems and air conditioning units. Regular inspection helps identify any wear, misalignment, or damage to the pulleys or belts, ensuring optimal performance and preventing potential failures. When necessary, damaged or worn wheel pulleys should be replaced to maintain the reliability and functionality of the HVAC system.

Overall, wheel pulleys play a significant role in HVAC systems and air conditioning units by facilitating blower motor operation, controlling fan speed, enabling belt-driven systems, maintaining tension and alignment, and contributing to a smooth and quiet operation. Their proper functioning and maintenance are essential for efficient air circulation and temperature control in various residential, commercial, and industrial settings.

wheel pulley

How does the design of a wheel pulley affect its performance?

The design of a wheel pulley plays a crucial role in determining its performance characteristics. Here’s a detailed explanation of how the design of a wheel pulley affects its performance:

1. Groove Profile:

The groove profile of the wheel pulley is designed to match the shape and dimensions of the belt, rope, or cable used in the power transmission system. An appropriate groove profile ensures proper belt tracking, maximum contact area, and effective power transmission. The design of the groove can also minimize slippage and maximize grip, enhancing the overall performance of the pulley.

2. Diameter and Size:

The diameter and size of the wheel pulley impact its mechanical advantage and speed ratio in the power transmission system. By adjusting the pulley’s diameter or size, the speed and torque can be modified to meet the requirements of the application. A larger pulley diameter can provide higher belt or rope speeds, while a smaller pulley diameter can increase torque output.

3. Material Selection:

The choice of material for the wheel pulley affects its durability, strength, and resistance to wear and corrosion. Common materials used for wheel pulleys include metals such as steel, aluminum, or cast iron, as well as high-strength plastics. The material selection is based on factors such as load capacity, operating conditions, and environmental considerations. The right material choice ensures optimal performance and longevity of the pulley.

4. Construction and Reinforcement:

The construction and reinforcement of the wheel pulley are important for its ability to withstand the anticipated loads and stresses. The pulley may have additional features such as flanges, spokes, or ribs to increase structural integrity and distribute the load evenly. Reinforcement techniques such as ribbing, webbing, or strengthening inserts can enhance the pulley’s performance under heavy loads or high-speed applications.

5. Balance and Alignment:

The balance and alignment of the wheel pulley are critical for smooth operation and to minimize vibrations. Imbalances or misalignments can lead to excessive wear, noise, and reduced efficiency. Proper manufacturing techniques and precision machining ensure that the pulley is well-balanced and aligned, resulting in improved performance and longevity.

6. Bearing and Shaft Design:

The bearing and shaft design of the wheel pulley are essential for its rotational stability and smooth operation. High-quality bearings, selected based on load capacity and speed requirements, ensure low friction and reliable performance. The shaft design, including length, diameter, and keyway specifications, is tailored to handle the anticipated loads and provide secure power transmission.

7. Surface Coatings and Treatments:

In certain applications, wheel pulleys may undergo surface coatings or treatments to enhance their performance. Coatings such as corrosion-resistant finishes or low-friction coatings can reduce wear and extend the pulley’s lifespan. Surface treatments can also improve grip and reduce slippage, leading to better power transmission efficiency.

By considering factors such as groove profile, diameter and size, material selection, construction and reinforcement, balance and alignment, bearing and shaft design, and surface coatings or treatments, the design of a wheel pulley can significantly impact its performance. A well-designed pulley ensures optimal power transmission, efficiency, durability, and reliability in various applications.

wheel pulley

Can you explain the typical applications of wheel pulleys in machinery?

Wheel pulleys have a wide range of applications in machinery across various industries. They play a vital role in power transmission and motion control. Here’s a detailed explanation of the typical applications of wheel pulleys in machinery:

1. Conveyor Systems:

Wheel pulleys are extensively used in conveyor systems, which are commonly found in manufacturing plants, warehouses, and distribution centers. They serve as the driving or driven pulleys that move the conveyor belts, enabling the transportation of materials or products from one location to another.

2. Automotive Systems:

In automotive systems, wheel pulleys are employed in various applications. They are used in engine systems to drive accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. Wheel pulleys are also utilized in the timing belt or chain system to synchronize the rotation of the engine’s camshafts and crankshaft.

3. Lifting Equipment:

Wheel pulleys are commonly found in lifting equipment, such as cranes, hoists, and elevators. They are used to transmit power and motion to lift heavy loads vertically or horizontally. Wheel pulleys enable the mechanical advantage required to lift and move substantial weights with reduced effort.

4. Manufacturing Machinery:

In manufacturing machinery, wheel pulleys are employed in various processes. They can be found in machines used for cutting, drilling, milling, grinding, and shaping, among others. Wheel pulleys facilitate the transmission of rotational motion and power, enabling the operation of these machines.

5. Power Tools:

Many power tools, such as drills, saws, and sanders, utilize wheel pulleys. These pulleys are used to transfer power from the motor to the cutting or sanding blades, enabling the tools to perform their intended functions effectively.

6. Printing and Packaging Machinery:

Wheel pulleys are essential components in printing and packaging machinery. They are utilized in systems that involve paper feeding, web tension control, and roll-to-roll movement. Wheel pulleys ensure precise and reliable power transmission, contributing to the smooth operation of these machines.

7. Agricultural Machinery:

In agricultural machinery, wheel pulleys find applications in various equipment such as tractors, combines, and harvesters. They are used to drive components like the conveyor systems, cutting blades, threshing mechanisms, and grain handling equipment, enabling efficient farming and harvesting processes.

8. Material Handling Equipment:

Material handling equipment, including forklifts, pallet jacks, and automated guided vehicles (AGVs), rely on wheel pulleys for their operation. Wheel pulleys facilitate the movement of these machines, allowing for the transportation and positioning of materials and goods within warehouses, distribution centers, and other industrial environments.

9. Exercise Equipment:

Wheel pulleys are commonly found in exercise equipment, such as treadmills, stationary bikes, and rowing machines. They are used to transmit power from the motor to the various components of the equipment, enabling the user to engage in physical activity.

10. HVAC Systems:

In heating, ventilation, and air conditioning (HVAC) systems, wheel pulleys are utilized to drive fans and blowers. They enable the circulation of air and contribute to the cooling, heating, and ventilation of buildings and enclosed spaces.

These are just a few examples of the typical applications of wheel pulleys in machinery. Wheel pulleys are versatile components that find use in a wide range of mechanical systems, contributing to efficient power transmission, motion control, and the operation of various types of machinery in different industries.

China Standard China Great Price Deep Groove Ball Bearing 6200 6201 Caster Metal Pulley Wheel with Bearing   pulley bearing	China Standard China Great Price Deep Groove Ball Bearing 6200 6201 Caster Metal Pulley Wheel with Bearing   pulley bearing
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