The basic parameters and adaptability of the Atlas Copco air compressor model 2903102422 V
Model characteristics: 2903102422 is the specific part number of the original factory V belt, belonging to the standard wedge belt (V belt), with a trapezoidal cross-section, and transmits power through the friction between the two sides and the groove of the pulley.
Specification parameters: Specific dimensions such as length, width, top width, wedge angle, etc. need to refer to the original factory manual (different V belt models correspond to different specifications), usually suitable for the auxiliary transmission system of small and medium-sized air compressors.
Applicable models: Mainly used for some GA series screw air compressors (such as specific power GA models) and related derivative models. Specific confirmation is required based on the model of the air compressor, production batch, and transmission system design.
Function and structural features
Power transmission: Connects the motor pulley with the auxiliary equipment (such as cooling fans, hydraulic pumps) through the pulley, transmitting the motor power to these components to drive their operation (such as fan cooling, oil pump supply).
Structural materials:
The main body is usually made of rubber (neoprene rubber or ethylene propylene diene monomer rubber) wrapped with high-strength fiber cord (such as polyester cord), having both elasticity and tensile strength.
The surface may have anti-slip patterns or fabric layers to enhance the friction with the pulley, reducing slippage.
Working characteristics: Adapts to certain speed variations (usually ≤ 3000 rpm), has heat resistance (adapted to the environmental temperature during equipment operation, generally - 30 to 80℃) and oil resistance (resists a small amount of lubricating oil contamination).
Common problems and replacement timing
Failure manifestations:
Belt wear (surface cracks, rubber aging and hardening, cord exposure).
Slip phenomenon (during operation, there is abnormal noise, overheating, insufficient rotational speed of the auxiliary equipment).
Belt breakage or length elongation (causing transmission failure).
Uneven wear on the sides (due to pulley misalignment or improper tension).
Replacement signal:
When the above failure manifestations occur, it must be replaced immediately to avoid transmission interruption and equipment shutdown.
Regular maintenance (such as after 6000 to 10000 hours of operation) is recommended to check, and if signs of aging are found, replace in advance.
When replacing, it is usually recommended to replace the entire set (if multiple V belts are used for transmission), ensuring uniform force.
Replacement and maintenance precautions
Original factory parts priority: 2903102422 is the original factory-matched model, must use Atlas Copco original V belts to ensure the size, material, and strength match the transmission system, avoiding premature wear or transmission failure due to deviation in part size from the original factory parts.
Installation specifications:
Before replacement, check if the pulley is worn, cracked or misaligned, and repair or replace the pulley if necessary.
When installing, ensure the pulley is aligned (axial deviation ≤ 0.5mm), avoiding excessive wear on the side of the belt.
Adjust the tension as per the regulations (usually press the middle of the belt, the deflection should be 1% to 2% of the span), too tight will aggravate bearing wear, too loose will cause slippage.
