Belt drives (for all types of fan)
Variously known as belt or rope drives, these are most commonly of vee section. For further information refer to Chapter 11.
Standard arrangements Nos. 1 23691011 12131418 and 19 are all applicable to belt drive of flat, classical or wedge form. It should be noted that the fan bearing nearest the pulleys and belts will be subject to a unidirectional radial load. This may limit the power which can be transmitted unless recourse is made to layshafts or pulleys between the bearings.
Posted in Fans Ventilation A Practical Guide