PA (Polyamide),commonly known as Nylon,are elements on the main chain amide group containing duplicate(NHCO) general term for the thermoplastic resin.It is a translucent or white crystalline resin and his molecular weight is generally 1.5-3 million.Nylong has high mechanical strength,high softening point,heat resistance,low coefficient of friction,wear-resisant,self-lubricating,shock-absorbing,oil resistance,weak acid,alkail and general solvents;good electric insulation,self-extinguishing nature,non-toxic,odorless,weather resistance and so on.Nylon and glass fiber affinity is very good,so easy to enhance.However, the dyeing properties of Nylon bad, it is not easy coloring,The absorbent nylon influence dimensional stability and electrical perfermance,fiber-reinforced resin to reduce water absorbtion,so that it can be at high temperature,high humidity to work.For the burning of nylon UL94-V2 class,oxygen index for the 24-28.Decompositioon temperature of the nylon>299°C,at 449°C-499°C spontaneous combustion occurs.The mobility of nylon melt well,so product can be as small as wall thickness 1mm.
Item | Test condition | Test standard | Unit | PA-66 | PA-6 | PA-610 | PA-612 | PA-1010 | PA-11 | PA-12 |
Density | 23°C | ISO1183 | g/cm³ | 1.14 | 1.14 | 1.09 | 1.07 | 1.05 | 1.04 | 1.02 |
Melting point | 23°C | DSC | °C | 260 | 225 | 213 | 210 | 200-210 | 187 | 178 |
Mold shrinkage | ISO294-4 | % | 0.8-1.5 | 0.6-1.6 | 1.2 | 1.1 | 1.0-1.5 | 1.2 | 0.3-1,5 | |
Tensile strength | 23°C | ISO527-1,2 | MPa | 80 | 75 | 60 | 62 | 55 | 55 | 50 |
Tensile modulus | 23°C | ISO-178 | GPA | 2.9 | 2.5 | 2.0 | 2.0 | 1.6 | 1.3 | 1.3 |
Elongation at break | 23°C | ISO527-1,2 | % | 60 | 50 | 200 | 200 | 250 | 300 | 300 |
Flexural modulus | 23°C | ISO-178 | GPa | 3.0 | 2.6 | 2.2 | 2.0 | 1.3 | 1.0 | 1.4 |
Impact strength(notch) | 23°C | ISO-179 | kJ/m2 | 4 | 5.5 | 5.5 | 5.4 | 4.0-5.0 | 4.0 | 5.0 |
Rockwell hardness | 23°C | D785 | 118 | 114 | 116 | 114 | 95 | 108 | 106 |
Features:
1,Suitable for flexible transmission between shafts, allowing large axial, radial displacement and angular displacement
2,Simple structure
3,Convenient maintaince
4,Easy assembly and disassembly
5,Low noise
6,Low transmission efficiency loss
7,Long service life and is popular with users,mainly used for mechanical transmission of forging, construction, mining, plastics, food, engineering, petroleum, chemical, machine tools, ships, leather, textiles, fans, pumps and other industries.
8,Main raw material of NL Gear Coupling nylon inner sleeve are: engineering plastic, reinforced nylon PA66, high strength nylon PA66 plus 30% glass fiber reinforced. Reinforced nylon has good mechanical and electrical properties, be toughened, reinforced, flame retardant, wear-resistant modified, improved heat resistance, etc., and can choose various hardness synthetic rubber grease according to user requirements. Rubber; reinforced cast nylon elastomer and other materials.
9,Other customized design or sku
product picture: