MC Cast Nylon Gear bushing

What are nylon gears? Nylon gear is the application of nylon as the material of the gear, the application of the gear meshing process in the middle of the formation of self-lubricating system, making nylon gear application life significantly improved, so its internal lubricant contained in the lubricant will not be lost, absorbing approval depletion, and do not need to grow again, so what are the characteristics of nylon gear?Nylon gear has good comprehensive functions, including machine functions, heat resistance, wear resistance, chemical resistance and self-lubrication, low debate coefficient, with flame retardant, easy processing, suitable for glass fiber reinforced and other packaging, progress in function and expansion of its application range, followed by the results of overload protection, when the torque is too large, the gear itself is damaged, power transmission assembly suffix, lower protection or human life safety, reduce loss , so what is the scope of application of nylon gears?Because nylon gears non-toxic, light weight, high machine strength, good wear resistance, good corrosion resistance, so in the machine, chemical and other industries, bearings, gears, pump blades and other parts of the production of widely used to replace copper and other metals and other industries

Advantages of nylon gears

Nylon gears have good overall performance, mechanical properties, heat resistance, wear resistance, self-lubrication and chemical resistance, low coefficient of friction and easy processing, which can improve performance and expand the scope of application. As nylon has non-toxic, light weight, excellent mechanical strength, wear resistance and good corrosion resistance, so it is widely used in place of copper and other metals in machinery, chemical industry, instrumentation, automotive and other industries to manufacture bearings, gears and other parts.

Comparison between nylon gears and metal gears

1. Energy saving and consumption reduction:

Nylon speed control gear component as long as the steel gear about one-seventh, the rotation inertia is small, reducing mechanical energy consumption. In addition, it is also beneficial to complete the light weight of machinery.

2. Wear resistance, wear reduction, impact resistance, self-lubrication:

Nylon alloy wear resistance than copper, steel and other materials 4-8 times higher, and can be extremely effective maintenance of the wear parts, useful to extend the service life of the associated six matching gears.

3. Oil resistance and anti-corrosion:

Nylon alloy can be in a variety of mechanical oil for decades without metamorphosis, and can be in a weak acid, weak alkali, salt and other corrosive media can effectively overcome the shortcomings of metal materials are more prone to corrosion.

4. High mechanical strength:

Nylon alloy tensile strength is usually not less than 112Mpa, tightening strength is usually greater than 126Mpa, so it can meet the strength needs of speed control gear.

5. Sound absorption and noise reduction:

Nylon gears on the vibration attenuation effect is relatively large, after the corresponding test than steel gears to uniformly reduce noise 6 decibels, thus providing a more novel method for reducing diesel engine noise pollution, is currently relatively more ideal environmentally friendly goods

What is the best nylon material for the production of nylon gears?

The production of gear nylon will usually use MC nylon (casting) or PA nylon (injection molding), the most commonly used is POM, can be carbon fiber reinforced, the size is more stable. Of course, you can also use high-end engineering plastics, such as: PEEK, SP-1, PTFE , Rullon LR and so on. For different occasions to choose to use different characteristics of nylon, nylon engineering plastics scientific name polyamide.

MC nylon, oil-containing nylon, it has the advantages of high mechanical strength, superior wear resistance, corrosion resistance, anti-aging, self-lubricating, light weight, sound absorption and shock absorption, non-toxic, etc.. Comprehensive mechanical properties are far better than the general engineering plastics, is the ideal material to replace copper, stainless steel and other non-ferrous metals. In the production to ensure the use of the product nature, service life, good machinability, so that it is easy to process molding.
1. Nylon 6 good elasticity, high impact strength, greater water absorption .
2. Nylon 66 performance is better than nylon 6, high strength, good wear resistance.
3. Nylon 610 is similar to nylon 66, but with small water absorption and low stiffness
4. Nylon 1010 is semi-transparent, with small water absorption and good cold resistance. Suitable for making general mechanical parts, wear-resistant parts, transmission parts and chemical, electrical, instrumentation and other parts MC nylon gear.

Second, the physical properties of PA nylon: tough, wear-resistant, oil-resistant, water-resistant, mold-resistant, but more water-absorbent. Performance characteristics: tensile strength, hardness, abrasion resistance, self-lubricating properties, etc. is very good. Modification can make certain properties more outstanding, such as the commonly used plus glass fiber can make it more wear-resistant, high hardness, high temperature resistance, commonly used to replace the rigid iron copper or steel outside the nylon to reduce noise, reduce weight, etc.

Functions and structural characteristics of nylon gears

Nylon gear transmission in contemporary machines and instruments is extremely widely used, its function is to transfer action and power according to the specified speed ratio.

Nylon gear manufacturers gear structure due to the application requirements of different and have a variety of different shapes, but from the process point of view can be seen as a gear by the tooth ring and the wheel body of two pieces of composition. According to the distribution form of gear teeth on the ring, can be divided into straight teeth, oblique teeth, herringbone teeth, etc.; according to the structural characteristics of the wheel body, gears are roughly divided into disk gears, sleeve gears, shaft gears, sector gears and rack and so on.

Among the above-mentioned gears, disc gears are widely used. The bore of disk gear is mostly cylindrical hole and spline hole with high precision. Its rim has one or several tooth rings. The structure of single-ring gears is well crafted and can accept any kind of tooth processing techniques to process the gear teeth; duplex or triplex and other multi-ring gears (Figure 9-1b, c). When the axial interval between its rim is small, the choice of small ring tooth shape processing techniques is limited, usually only the use of inserted teeth. Assuming that the small ring accuracy requirements are high, the need for fine rolling or grinding processing, and the axial interval in the decision should not be allowed to increase, this multi-ring gear made of single-ring gear combination structure, in order to improve the processability.