What are the main factors affecting the durability of rubber driving belts

The durability of a rubber drive belt refers to its ability to maintain structural integrity and performance under long-term, high-load, high-speed operating conditions. This characteristic is directly related to the reliability and durability of the mechanical system.

Design and material selection of fiber reinforced layers

The role of fiber reinforcement layer

Rubber drive belts typically contain fiber reinforcements such as polyester, nylon, or fiberglass. These fiber reinforcements give the belt excellent tensile strength, improving its tensile properties and ensuring it is less susceptible to breakage under high tension and load conditions.

Fiber type and layout

Different types of fibers have different properties such as strength, durability and elastic modulus. Manufacturers select the appropriate fiber type and layout to meet the requirements of a specific application. The rationally designed fiber layer can effectively disperse the force and improve the overall strength and durability of the transmission belt.

Rubber material quality and formulation

Addition of anti-aging agents

The rubber material of rubber transmission belts usually contains anti-aging agents to slow down the aging process of the rubber. These anti-aging agents can slow down the breakage and deterioration of rubber molecular chains, maintain the elasticity and strength of the transmission belt, and increase its service life.

Rubber hardness and elasticity

Proper hardness and elasticity are critical to the durability of rubber drive belts. Too high or too low hardness may cause excessive deformation or cracking of the transmission belt under high load, affecting its service life. Manufacturers need to strike a balance between hardness and elasticity to ensure that the drive belt can work stably under different conditions.

Manufacturing process optimization

Homogeneous rubber mix

Ensuring that the rubber is evenly mixed during the manufacturing process is one of the keys. Uniform mixing ensures even distribution of various additives, fillers and fibers in the rubber, preventing local performance differences and improving overall durability.

Proper vulcanization process

Vulcanization is one of the key steps in rubber drive belt manufacturing. Proper vulcanization process can ensure the cross-linked structure of rubber and improve its wear resistance, durability and elasticity. The time, temperature and pressure control during the process all need to be strictly controlled.

Environmental adaptability and chemical stability

Environmental aging resistance

Rubber drive belts need to work in a variety of environmental conditions, including UV light, oxygen and humidity. The environmental aging resistance of rubber materials affects their durability outdoors or in harsh conditions. Proper anti-aging formulas and coating designs can help protect against the effects of the external environment.

Chemical resistance

In some applications, rubber drive belts may be exposed to chemicals such as oils, solvents, etc. Rubber materials need to have certain chemical resistance to prevent the expansion, softening or hardening of the rubber to maintain the performance of the drive belt.