Product Description
Welcome to HangZhou XIHU (WEST LAKE) DIS. FLIGHT SEIKO MACHINERY CO.,LTD !
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
|
Designation |
Shaft |
Mass |
Dimensions(mm) |
Basic Load Ratings |
Limiting |
||||
|
P.No. |
Diameter |
|
FW |
D |
C |
r |
Cr |
Cor |
Speed |
|
|
mm |
g |
|
|
|
Min. |
Kn |
Kn |
rpm |
|
NK 5/10TN |
5 |
3.1 |
5 |
10 |
10 |
0.15 |
2.5 |
2 |
37000 |
|
NK 6/10TN |
6 |
4.7 |
6 |
12 |
10 |
0.15 |
2.33 |
2.2 |
33000 |
|
NK 6/12TN |
6 |
5.7 |
6 |
12 |
12 |
0.15 |
3.3 |
3.45 |
33000 |
|
NK 7/10TN |
7 |
6.9 |
7 |
14 |
10 |
0.3 |
3.33 |
3.15 |
31000 |
|
NK 8/12TN |
8 |
8.7 |
8 |
15 |
12 |
0.3 |
4.1 |
4.3 |
29000 |
|
NK 9/12TN |
9 |
10.3 |
9 |
16 |
12 |
0.3 |
4.75 |
5.3 |
28000 |
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 |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
How do wheel pulleys contribute to efficient power transmission?
Wheel pulleys play a crucial role in facilitating efficient power transmission in mechanical systems. Here’s a detailed explanation:
1. Belt Engagement:
Wheel pulleys use belts to transmit power from one component to another. The design of the pulley ensures proper engagement with the belt, creating a positive grip that minimizes slippage. The belt wraps around the pulley’s circumference, maximizing the contact area and enhancing the transfer of rotational motion. This secure and efficient belt engagement allows for the effective transmission of power.
2. Mechanical Advantage:
Wheel pulleys are often used in conjunction with different-sized pulleys to create mechanical advantage. By varying the diameter of the pulleys in a system, the speed and torque can be adjusted to meet specific requirements. For example, a larger pulley driving a smaller pulley results in increased torque at the expense of speed, while a smaller driving pulley with a larger driven pulley increases speed at the expense of torque. This mechanical advantage enables efficient power transmission by matching the system’s power requirements.
3. Reduced Slippage:
Wheel pulleys are designed to minimize belt slippage during power transmission. The pulley’s groove profile and dimensions are carefully engineered to match the belt type and size, ensuring proper alignment and preventing the belt from slipping off the pulley. Additionally, tensioning mechanisms can be incorporated to maintain the optimal tension in the belt, further reducing the risk of slippage. By reducing slippage, wheel pulleys ensure that the transmitted power reaches the intended components efficiently.
4. Smooth Operation:
Wheel pulleys contribute to efficient power transmission by providing smooth operation. They are often equipped with bearings or bushings that reduce friction and enable the pulley to rotate smoothly. This smooth rotation minimizes energy losses due to friction, ensuring that the power is effectively transferred from the driving component to the driven component with minimal wastage.
5. Versatility and Adaptability:
Wheel pulleys offer versatility and adaptability in power transmission systems. They can accommodate various belt types, sizes, and materials, allowing for flexibility in system design and optimization. This versatility enables engineers to select the most appropriate belt and pulley combination for the specific power transmission requirements, maximizing efficiency.
6. Maintenance and Lubrication:
Proper maintenance and lubrication of wheel pulleys contribute to efficient power transmission. Regular inspection and maintenance help identify any issues or wear that may affect the pulley’s performance. Additionally, applying appropriate lubrication to the pulley’s bearings or bushings reduces friction, ensuring smooth operation and efficient power transfer.
Overall, wheel pulleys contribute to efficient power transmission through their effective belt engagement, mechanical advantage, reduced slippage, smooth operation, versatility, and proper maintenance practices. By optimizing these factors, wheel pulleys enable reliable and efficient power transfer in a wide range of mechanical systems and applications.
What safety considerations should be kept in mind when working with wheel pulleys?
Working with wheel pulleys requires adherence to certain safety considerations to ensure the well-being of individuals and the proper functioning of the equipment. Here are important safety considerations to keep in mind:
1. Proper Guarding:
Wheel pulleys should be properly guarded to prevent accidental contact with moving parts. Guards should be installed to cover the pulley and belt or rope to minimize the risk of entanglement or injury. This is especially important in areas where personnel or operators are present.
2. Lockout/Tagout Procedures:
When performing maintenance or repair tasks involving wheel pulleys, lockout/tagout procedures should be followed. This involves isolating the power source, such as shutting off the equipment or disconnecting the power supply, and using lockout/tagout devices to prevent accidental energization. This ensures that the pulley remains stationary and prevents unexpected movement that could cause injury.
3. Personal Protective Equipment (PPE):
Appropriate personal protective equipment should be worn when working with wheel pulleys. This may include safety glasses or goggles to protect the eyes from flying debris, gloves to protect hands during handling or maintenance tasks, and other PPE as necessary based on the specific work environment and hazards present.
4. Regular Maintenance and Inspection:
Regular maintenance and inspection of wheel pulleys are essential for safe operation. Inspect pulleys for signs of wear, damage, or misalignment, and ensure proper lubrication of bearings and other moving parts. Any worn or damaged pulleys should be promptly replaced to prevent failures that could lead to accidents.
5. Proper Training and Supervision:
Individuals working with wheel pulleys should receive proper training on their safe operation, maintenance procedures, and the potential hazards associated with them. Adequate supervision should be provided, especially for individuals who are new to working with wheel pulleys or are performing complex tasks.
6. Load Capacity and Operating Limits:
Ensure that the wheel pulleys are used within their specified load capacity and operating limits. Overloading the pulleys can lead to premature failure, increased wear, and potential accidents. Refer to the manufacturer’s guidelines or technical specifications to determine the appropriate load capacity and operating limits.
7. Clear Work Area:
Keep the work area around wheel pulleys clear of obstructions, debris, or loose objects that could interfere with their operation. This helps prevent accidents, tripping hazards, or damage to the equipment.
8. Risk Assessment:
Conduct a thorough risk assessment to identify potential hazards associated with working with wheel pulleys. Take appropriate measures to mitigate these risks, such as implementing safety procedures, providing adequate training, and using safety devices or engineering controls.
It is important to prioritize safety when working with wheel pulleys. By following proper safety precautions, individuals can minimize the risk of accidents, injuries, and equipment damage, ensuring a safe working environment.
How do wheel pulleys handle variations in load capacity and speed?
Wheel pulleys are designed to handle variations in load capacity and speed in power transmission systems. Here’s a detailed explanation of how they handle these variations:
Load Capacity:
1. Pulley Size and Diameter:
Wheel pulleys can be designed with different sizes and diameters to accommodate varying load capacities. Larger pulleys have a greater contact surface area with the belt or rope, distributing the load over a larger area and reducing the stress on the pulley. This allows for the transmission of higher loads without compromising the integrity of the pulley.
2. Material and Construction:
Wheel pulleys are manufactured using materials that offer high strength and durability. Common materials include metals such as steel or cast iron, as well as high-strength plastics. The construction of the pulleys is designed to withstand the anticipated loads without deformation or failure.
3. Bearing and Shaft Design:
The bearings and shafts supporting the wheel pulleys are chosen and designed to handle the expected loads. They are selected based on load capacity, speed, and the specific requirements of the application. High-quality bearings and robust shafts ensure smooth rotation and reliable performance under varying load conditions.
Speed:
1. Pulley Ratio:
Wheel pulleys operate on the principle of pulley ratio, where the speed of the driven pulley is determined by the ratio of the sizes of the driving and driven pulleys. By adjusting the pulley sizes, the speed of the driven pulley can be modified to meet the desired requirements. This allows for variations in speed without the need for complex transmission mechanisms.
2. Belt or Rope Selection:
The selection of the belt or rope used with the wheel pulleys can also influence the speed capabilities. Different types of belts or ropes have varying speed ratings and can handle different operating speeds. By choosing the appropriate belt or rope material and design, the wheel pulleys can effectively handle variations in speed.
3. Pulley Design:
Wheel pulleys are designed to minimize slippage and ensure efficient power transmission at different speeds. The pulley grooves are shaped and dimensioned to match the profile of the belt or rope, maximizing the contact area and grip. This design feature helps maintain consistent power transmission even at varying speeds.
Overall, wheel pulleys handle variations in load capacity and speed through careful design considerations, such as pulley size and diameter, material selection, bearing and shaft design, pulley ratio, belt or rope selection, and pulley design. By incorporating these factors, wheel pulleys provide reliable and efficient power transmission across a range of load and speed conditions.
editor by CX
2024-05-14
