What should be paid attention to in the daily maintenance of PU Synchronous Belt?

1. Correct installation and tension management
Ensure that the PU Synchronous Belt is aligned with the axis of the pulley to avoid unilateral wear caused by deflection. Do not forcefully twist or bend the belt body during installation to prevent the internal tensile layer (such as wire rope, aramid fiber) from breaking. Before use, check whether there are cracks, scratches or delamination on the surface of the belt body, and replace it immediately if abnormalities are found.
Tensioning that is too loose will cause tooth skipping or slipping, while tensioning that is too tight will accelerate wear and increase bearing load. It is recommended to refer to the "finger pressure method" test: apply 2kg pressure in the middle of the belt, and the sinking amount is preferably 10-20mm. After tensioning, it needs to run for 20-30 hours for rechecking, because the tension may drop slightly after the pulley runs in.

2. Cleaning and inspection
Use a soft cloth or brush to remove dust and oil stains on the PU Synchronous Belt and the pulley to avoid impurities aggravating wear. Acidic/alkaline detergents are prohibited, and neutral detergents (such as soapy water) are recommended for wiping.
Focus on checking whether there are foreign objects (such as metal chips and fibers) attached to the tooth roots and belt backs to prevent poor meshing.
Tooth surface inspection: Observe whether there are cracks on the tooth roots and whether the tooth tops are ground flat. If the tooth height decreases by more than 10% or the belt body cracks horizontally, it needs to be replaced immediately.
Belt back inspection: Turn over the synchronous belt to check whether the cloth sleeve is worn to expose the core wire, or whether the belt back has cracks.
Anti-tensile layer detection: If the belt body has local tensile deformation or delamination, it means that the anti-tensile layer is damaged and needs to be stopped.

3. Environment and usage specifications
The operating temperature of PU Synchronous Belt should be controlled between -30℃ and +80℃, and the short-term high temperature should not exceed 110℃. Avoid contact with strong acids, strong alkalis and organic solvents (such as gasoline and acetone), otherwise it will accelerate the hydrolysis or swelling of the material.
Oil stains will cause polyurethane to soften and need to be cleaned in time. A humid environment may cause corrosion to the core wire. It is recommended to add a protective cover or use a waterproof coating model.