How to choose casters
Mar 25, 2024
HOW TO CHOOSE CASTERS
Using casters can reduce the work force and increase the work efficiency. The right caster should be chosen by the manner of application, condition
and request(for example facility, labor-saving,durability). The factor must be considered as follows:
The load capacity (1) Load: T= (E+Z)/M
T=each caster load
E=the weight of the vehicle
Z=the weight of moving object
M=effcient load casters quantity
(the position and different heavy distribution must be considered)
(2) Efficient load caster quantity as follows：
(3) The casters load at the positon of maximum should be considered when choose load capacity. Concrtete load position and maximum position (P2) as follows:
Agility
(1) The part of turn(frame turn, wheel rolling) should choose the mini.friction material, or the accessories which be made by a special technology, such as pin ball bearing or quenched in order that the casters will be used easy and durable.
(2) The bigger the eccentricity is, the better the agility bocomes.But the load capacity is reduced accordingly.
(3) The bigger the wheel diameter is, the more labor-saving it becomes, and can protect the floor surface perfectly. The bigger wheels run much slowly, not easily getting heated and distorted, and more durable than the small. It is better to choose the bigger diameter wheel when the fitting height is enough.
Moving speed
The request of caster speed : at the normal temperature and on the smooth floor, the speed should be lower than 4km/h of walk and there is static interval during the work time.
Applied environment
The floor material, barrier, leftover and the special environment, such as scrap iron, high or low temperature, great acidity and alkalescence, oil liquor, chemistry solvent and anti-static-electricity, should be considered when choose the caster. Caster used in special environment should be made of special materials.
Fitting notice:
Plate : fitted plate must be level, hard and firm.
Rigid : the direction of two wheels must be accordant and paralle.
Thread : must be fitted with spring shim to prevent from loosening.
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