Product Description
Manufacture ODM & OEM nylon pa66 pulley elevator sheave for stained color
Mc nylon means monomer casting nylon, is a kind of engineering plastics used in comprehensive industries, has been applied almost every industrial field.
The caprolactam monomer is first melted, and added catalyst, then poured it inside moulds at atmosphere pressure so as to shape in different castings, such as: Rod, plate, tube. The molecule weight of mc nylon can reach 70, 000-100, 000/mol, 3 times than pa6/pa66. Its mechanical properties are much higher than other nylon materials, such as: Pa6/pa66. Mc nylon plays a more and more important role in the material list recommended by our country.
Oil nylon (green)
Oil nylon(green)is the new engineering plastics that developed by HangZhou engineering plastics industireis company in the later 1980’s by importing the advanced technology from nylacast co., ltd, uk, was the first authentic lubricating nylon that builds the liquid lubricant system during the processing stage, which makes its coefficient of friction is 50% lower than the general pa6 or pa66, the wear-resistance is 10 times than the general ones. Oil nylon is specially developed for the parts of non-self-lubrication, heavy-loading and low-speed-running, which obviously resulted in a substantial increase in bearing life- 5 times that of general pa6 and 25 times that of phosphor bronze! The lubricant contained within the material will not drain, adsorb or dry out and never needs replenishment. The uniform distribution of the lubricant throughout the product guarantees the constant performance of the parts over the whole service life and improvements in rate of wear, sliding frictional properties, abrasion resistance and stick slip performance, which are just a few of the benefits offered by this material. Oil nylon has been successful in considerable enlarging the application of nylon in many industries and specifically for some un-lubricated running parts.
Other casting nylon:
Oil nylon + carbon (black)
Oil nylon added carbon, has the very compact and crystal structure, which is better than the general casting nylon in the performance of high mechanical strength, wear-resistance, anti-aging, uv resistance and so on. It is suitable for making the bearing and other wear mechanical parts.
Oil mc901(blue)
This improved mc nylon, has striking blue color, which is better than general pa6/pa66 in the performance of toughness, flexibility, fatigue-resistance and so on. It is the perfect material of gear, gear bar, transmission gear and so on.
Mc nylon + mso2(light black)
Mc nylon added mso2 can remain the impact-resistance and fatigue-resistance of casting nylon, as well as it can improve the loading capacity and wear-resistance. It has a wide application in making gear, bearing, planet gear, seal circle and so on.
Propertites for your reference:
| Property | Item No. | Unit | MC Nylon (Natural) | Oil Nylon+Carbon (Black) | Oil Nylon (Green) | MC90 (Blue) | MCNylon+MSO2(Light Black) | |
| Mechanical Properties | 1 | Density | g/cm3 | 1.15 | 1.15 | 1.135 | 1.15 | 1.16 |
| 2 | Water absorption (23ºCin air) | % | 1.8-2.0 | 1.8-2.0 | 2 | 2.3 | 2.4 | |
| 3 | Tensile strength | MPa | 89 | 75.3 | 70 | 81 | 78 | |
| 4 | Tensile strain at break | % | 29 | 22.7 | 25 | 35 | 25 | |
| 5 | Compressive stress (at 2%nominal strain) | MPa | 51 | 51 | 43 | 47 | 49 | |
| 6 | Charpy impact strength (unnotched) | KJ/m 2 | No brak | No break | ≥50 | No BK | No break | |
| 7 | Charpy impact strength (notched) | KJ/m 2 | ≥5.7 | ≥6.4 | 4 | 3.5 | 3.5 | |
| 8 | Tensile modulus of elasticity | MPa | 3190 | 3130 | 3000 | 3200 | 3300 | |
| 9 | Ball indentation hardness | N/mm 2 | 164 | 150 | 145 | 160 | 160 | |
| 10 | Rockwell hardness | – | M88 | M87 | M82 | M85 | M84 | |
elevator sheave
Factory
Since the end of 1980’s, HangZhou engineering plastics industireis company has devoting herself on developing the technology of mc nylon modification, greatly extended the applications in different industries. Basing on the mc nylon, reinforced with variety of additives during the reaction, such as lubricant, molybdenum disulfide, graphite glass fiber, carbon fiber etc, to improve the properties, higher performance of wear-resistance, corrosion-resistance, self-lubrication, vibration-absorption, noise-absorption. At the same time, as the technics and structure of the moulds is quite simple, so that it can be manufactured in lower cost, becomes the ideal substitutes of bronze, stainless steel, babbitt alloy, ptfe and so on.
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| Material: | PA |
|---|---|
| Size: | Customized |
| Color: | Natural, White, Black, Green, Blue, Yellow |
| Density: | 1.2g/Cm2 |
| Feature: | Wear Resistance, Anti-Aging, Lubricant |
| Supply Ability: | 100000 Piece Per Month |
| Customization: |
Available
| Customized Request |
|---|
What impact does sheave design have on cable and rope performance?
The design of sheaves has a significant impact on the performance of cables and ropes. Here’s a detailed explanation of how sheave design influences cable and rope performance:
- Reduced Wear: A well-designed sheave minimizes wear on cables and ropes. The groove depth and shape should be compatible with the cable or rope diameter, preventing excessive friction and abrasion. Smooth and rounded groove profiles are often preferred to reduce stress concentrations and extend the lifespan of the cable or rope.
- Proper Alignment: Sheave design ensures proper alignment of cables and ropes. The groove width and shape should match the cable or rope diameter to maintain consistent contact and prevent slippage. Correct alignment minimizes stress concentrations, reduces wear, and optimizes power transmission efficiency.
- Reduced Bending Stress: Sheave diameter influences the bending radius of the cable or rope as it wraps around the sheave. A larger sheave diameter results in a larger bending radius, reducing the bending stress on the cable or rope. By selecting an appropriate sheave diameter, the risk of premature fatigue or failure due to excessive bending can be minimized.
- Optimized Load Distribution: The groove depth and profile affect how the load is distributed across the cable or rope. A well-designed sheave ensures even load distribution, reducing the risk of localized stress concentrations that can lead to premature failure. Proper load distribution helps maximize the strength and durability of the cable or rope.
- Enhanced Grip and Traction: The groove depth and shape of the sheave play a role in providing grip and traction for the cable or rope. A deeper groove with an appropriate profile enhances the engagement between the sheave and the cable or rope, reducing the likelihood of slippage, especially under heavy loads or during sudden movements.
- Efficient Power Transmission: Sheave design impacts the efficiency of power transmission through the cable or rope. By selecting the appropriate sheave diameter and groove characteristics, the frictional losses can be minimized, resulting in more efficient transfer of force or motion.
Overall, sheave design has a direct influence on cable and rope performance. A well-designed sheave reduces wear, ensures proper alignment, minimizes bending stress, optimizes load distribution, enhances grip and traction, and promotes efficient power transmission. It is crucial to consider these factors when selecting or designing sheaves to maximize the performance and lifespan of cables and ropes in various applications.
How do sheaves contribute to the smooth operation of cable and rope systems?
Sheaves play a crucial role in ensuring the smooth operation of cable and rope systems. They are designed to guide and redirect the cables or ropes, allowing for efficient power transmission and controlled movement. Here are the ways in which sheaves contribute to the smooth operation of cable and rope systems:
- Alignment and tracking: Sheaves are carefully designed with grooved surfaces that align and track the cables or ropes. This ensures that the cables or ropes are maintained in the desired position, minimizing the risk of slippage, tangling, or interference with other system components. Proper alignment and tracking contribute to smooth and consistent operation.
- Reduced friction: Sheaves are engineered to reduce friction between the cables or ropes and the sheave surfaces. This is typically achieved through the use of materials with low friction coefficients and the application of lubricants. By minimizing friction, sheaves help to reduce energy losses, wear, and heat generation, resulting in smoother and more efficient operation.
- Load distribution: Sheaves distribute the load evenly across the cables or ropes. As the cables or ropes pass over the sheave, the load is spread out, preventing localized stress concentrations. This even load distribution helps to maintain the integrity of the cables or ropes, promoting smooth operation and extending their service life.
- Tension control: Sheaves can be used to control and adjust the tension in cable and rope systems. By changing the position of the sheaves, the tension in the cables or ropes can be increased or decreased as needed. Proper tension control is essential for maintaining the desired performance and preventing issues such as slackness or excessive tightness, which can hinder smooth operation.
- Directional changes: Sheaves allow for changes in the direction of cable or rope movement. By redirecting the cables or ropes around the sheave, they can be guided along the desired path or routed around obstacles. This enables smooth and controlled movement in various directions, facilitating the operation of complex cable and rope systems.
- Noise and vibration reduction: Well-designed sheaves with proper materials and construction can help dampen noise and vibrations generated during cable and rope operation. This contributes to a quieter and more comfortable working environment, as well as reduces the potential for vibrations to affect other system components.
Overall, sheaves play a vital role in ensuring the smooth and efficient operation of cable and rope systems. Their ability to align, guide, distribute load, control tension, facilitate directional changes, and reduce friction and vibrations all contribute to the reliable and effective functioning of these systems.
What is a sheave, and how is it used in mechanical systems?
A sheave is a mechanical component used in various mechanical systems for transmitting power and changing the direction or speed of a belt or rope. Here is a detailed explanation of what a sheave is and how it is used:
Definition:
A sheave, also known as a pulley wheel or a belt wheel, is a grooved wheel that is typically mounted on an axle or shaft. It features a groove or grooves along its circumference to guide a belt, rope, or cable. The groove prevents slippage and provides traction for power transmission.
Function:
Sheaves serve several important functions in mechanical systems:
1. Power Transmission:
Sheaves are primarily used to transmit power from one rotating component to another. When a belt or rope is looped around a sheave, the rotation of the sheave causes the belt or rope to move, transferring power from the input side to the output side.
2. Speed and Directional Changes:
By using different-sized sheaves in combination with belts or ropes of varying lengths, mechanical systems can achieve speed and directional changes. Larger sheaves connected to smaller sheaves will result in speed reduction, while smaller sheaves connected to larger sheaves will increase speed. Changing the arrangement of sheaves can also alter the direction of motion.
3. Tensioning and Belt Tracking:
Sheaves play a role in tensioning belts or ropes within a system. Proper tension is crucial for efficient power transmission and preventing belt slippage. Tensioning mechanisms, such as adjustable sheave positions or spring-loaded idler pulleys, are used to maintain the desired tension. Sheaves can also assist in tracking the belt or rope along the correct path within the system.
4. Load Distribution:
In systems with multiple sheaves, load distribution is an important consideration. By distributing the load across multiple sheaves, the system can handle higher loads while reducing the strain on individual components.
Types of Sheaves:
Sheaves come in various types depending on the application:
a. Flat Belt Sheaves: Designed for flat belts, these sheaves have a flat groove along their circumference.
b. V-Belt Sheaves: These sheaves are designed to accommodate V-belts, which have a trapezoidal cross-section. The groove in V-belt sheaves matches the shape of the V-belt, providing a secure fit.
c. Timing Belt Sheaves: Used in systems that require precise synchronization, timing belt sheaves have teeth that mesh with the teeth on the timing belt, ensuring accurate timing and positional control.
d. Wire Rope Sheaves: Wire rope sheaves are specifically designed for use with wire ropes or cables and feature a groove that prevents the wire rope from slipping.
Applications:
Sheaves are employed in a wide range of mechanical systems, including:
– Conveyor systems
– Elevators and lifts
– Cranes and hoists
– Agricultural machinery
– Industrial machinery
– HVAC systems
– Power transmission systems
Summary:
In summary, a sheave is a grooved wheel used in mechanical systems for power transmission, speed and directional changes, tensioning, load distribution, and belt tracking. They come in various types, such as flat belt sheaves, V-belt sheaves, timing belt sheaves, and wire rope sheaves, and find applications in a wide range of industries and machinery.
editor by CX
2024-05-07