Mc Nylon belt pulley bearing

Engineering plastic traditional nylon wheel refers to the industrial plastic used as industrial parts or shell material, which is San Yi comp... It is a plastic with excellent impact resistance, heat resistance, hardness and anti-aging properties. The Japanese industry defines it as "a high-performance plastic that can be used for construction and mechanical parts, with a heat resistance of 100.C or more, mainly used in industry", and its properties include.

1. Thermal properties: high glass transfer temperature (Tg) and melting point (Tm); high heat deflection temperature (HDT); high long-term use temperature (UL-746B); large use temperature range; small coefficient of thermal expansion.

2. Mechanical properties: high strength, high mechanical modulus, low latent strength, wear resistance and fatigue resistance.

3. Other: chemical resistance, electrical resistance, flame resistance, weather resistance, good dimensional stability.

The general engineering plastics include Polycarbonate (PC), Polyamide (Polya, nide, PA), Polyacetal (Polyoxy Methylene, POM), Poly Phenylene Oxide (PPE), Polyester (PETP, PBTP), Polyester (PPE), Polyethylene Oxide (PPE), Polypropylene Oxide (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE), Polyester (PPE). PETP, PBTP), Polyphenylene Sulfide (PPS), polyaryl esters, and thermosetting plastics such as unsaturated polyesters, phenolic plastics, epoxy plastics. Their basic characteristics are tensile strength of more than 50Mpa, tensile strength also in 500kg/cm, more than 50J/m, impact resistance, bending elasticity in 24000kg/cm, load deflection temperature of more than 1 Pi including the more special strength of weak, heat-resistant chemical resistance of fluorine plastics, heat-resistant silicone soluble compounds, as well as poly OO C, hardness, excellent aging / Polypropylene can also be included in the scope of engineering plastics if its hardness and cold resistance are improved.

Elevator nylon wheels also include fluorocarbon plastics which are weaker in strength and better in heat and chemical resistance, silicon-soluble compounds which are better in heat resistance, and polyimide, polyimide, Polybismaleimide, Polysufone (PSF), PES, acrylic plastic, modified amine plastic bucket, BT Resin, PEEK, PEI, liquid crystal plastic, etc.

The chemical structure of engineering plastics is different, so their chemical resistance, friction characteristics, motor characteristics, etc. are different. Since the molding properties of each engineering plastic are different, some are suitable for any molding method, while others can only be processed by a certain molding method, which results in limitations in application. The impact resistance of thermosetting engineering plastics is poor, so glass fibers are often added.

In addition to the impact resistance of polycarbonate and other engineering plastics, nylon wheels are usually hard, brittle, and have low elongation, but if 20-30% glass fiber is added, its impact resistance will be improved.