AT20 Timing Belt

The tooth profile of AT20 timing belt  is large and the tooth surface is much wider than that of T20. Therefore, the area of the contact surface between the teeth of AT20 timing belt and both sides of the tooth is more than that of T20: the included angle of T20 is 40 °, and the included angle of AT20 is 50 °. Under the condition of the same number of teeth, the same modulus, the same width and space constraints, the transmission force of AT20 is greater, and the deformation of the belt teeth is reduced as much as possible, There is a larger regional distribution load.

Therefore, T20 model is rarely used in general mechanical design, and AT20 timing belt is directly used. 

Tensile layer (steel wire rope or fiber rope) tensile layer is the tensile element of synchronous belt, which is used to transmit power and ensure that the distance of synchronous belt remains unchanged during operation. It adopts multi strand steel wire rope (or fiber rope) to spiral around the cloth along the belt width, and its position is determined as the pitch line of the synchronous belt. The tensile layer must have high tensile strength and bending fatigue strength, so that the belt has good dimensional stability, small production tolerance, and can ensure the precision of thickness and length.

At20 polyurethane timing belt has the following properties:

Mechanical properties: stable size, low pretension, low noise, high wear resistance, no maintenance, good elasticity, linear speed up to 80 meters / second.

Chemical properties: anti-aging, anti hydrolysis, UV UVA, ozone, high oil resistance, oil ester resistance, resistance to most acid and alkali corrosion.

Working temperature: -30 ℃～ +80 ℃, maximum +110 ℃ in a short time.

AT20 polyurethane ring power belt is produced through a special molding process. High quality polyurethane material makes the belt wear-resistant and tear resistant. The steel wire core increases the strength and tensile resistance of the belt, so that the belt has good dimensional stability.

AT20 Timing Belts are used in all areas, from micro drives, high-precision positioning and sorting mechanisms, small handheld machines to high-performance drives for construction and woodworking machinery.
Belt Characteristics
High transmission power and long life
Resistant to oil, fuel, benzol, UV radiation and ozone
Wear-resistant
Temperature range, depending on application, from −30 °C to +80 °C
Maintenance-free

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