Belt conveyors utilize a friction drive and accordingly, when power is applied to the drive system, one run of the belt will experience a higher tension than the other. The amount of slack side tension required to prevent slippage at the drive is a function of several constant factors amongst others is the coefficient of friction between the drive system. Below is the list of standard drive pulley friction factors.
|Friction Factor (Min)||Friction Factor (Max)||Description||Reference|
|0.25||0.25||Rubber surfaced belt driving bare steel pulley||CEMA|
|0.35||0.35||Rubber surfced belt driving rubeer lagged pulley surface||CEMA|
|0.2||0.2||Bare pulley running in water||CMA|
|0.35||0.35||dry lagged pulleys||CMA|
|0.8||0.8||pulleys lagged with ceramics||CMA|
|0.35||0.35||Wet and Dirty Lagged||CEMA|
|0.35||0.35||Bare Pulley||STEVENS ADAMSON|
|0.35||0.35||Dry Lagged||STEVENS ADAMSON|
|0.35||0.35||Wet Lagged||STEVENS ADAMSON|
|0.35||0.35||Wet and Dirty Lagged||STEVENS ADAMSON|
|0.2||0.2||Wet and Dirty Lagged||BRIDGESTONE|
|0.4||0.4||Wet and Dirty Lagged||LINATEX|
|0.4||0.45||Dry Lagged||REMA TIP TOP|
|0.35||0.35||Wet Lagged||REMA TIP TOP|
|0.25||0.3||Wet and Dirty Lagged||REMA TIP TOP|
|0.5||0.5||Dimpled Ceramic or equivalent hard material||CEMA|
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