Oil and chemical resistance
In general, the presence of oil or chemicals in contact with any belt drive system can materially affect the life span and operational characteristics of the system.
Two effects may be noted when belts are exposed to oil and/or chemicals. The most obvious is swelling, which causes the increase of belt dimension and consequently problems with fitting the belt into pulleys. Less apparent is deterioration of original belt properties caused by poor adhesion between belt components.
No one synthetic rubber is resistant to variety of chemicals, notably oils, acids and solvents. Some compounds may be excellent for one chemicals, but poor for another and only adequate for still another.
Because of this, all stock belts manufactured by ProTorque are constructed to be reasonably oil and chemical resistant. The nature of the compounds and/or belt construction may minimize swelling and deterioration. Occasional splattering by oils and greases does not usually adversely affect standard belts. As can be seen from the above, there are many variables. However, the following general guidelines might be of use in selecting a belt drive system subjected to a chemical environment.
- Prevent the accumulation of contaminants.
- If the belts are to be subjected to only an occasional contamination contact, a standard construction V- or synchronous belt can be used.
- Belts are expected to give long, trouble-free operation on an industrial drive and they are in contact with oil or exposed to an atmosphere laden with chemicals or solvents, consult a manufacturer for recommendations.