Polyurethane Wheel Casters

The hardness of Polyurethane Wheel Casters affects the elasticity of the pu wheels
We all know that the load-bearing capacity of Polyurethane Wheel Casters is limited. In the process of customizing polyurethane coated wheels, we will understand the customer's requirements for wheel load-bearing, speed, etc., and based on the actual situation. Polyurethane has a high hardness, better wear resistance, and poorer rebound effect. If the hardness is lower than the actual use, it may cause polyurethane slippage and deformation of the encapsulation wheel in a stagnant state. We solve the deformation problem by changing the hardness of the encapsulation wheel.
The workshop environment affects the deformation of Polyurethane Wheel Casters
We all know the principle of thermal expansion and contraction. After leaving the factory, the environment decreases and the Shore hardness increases. The high temperature in the workshop is also a cause of deformation.
Of course, from the perspective of polyurethane tire manufacturers, the reasons for warping and deformation of cast polyurethane products are related to short cooling and shaping time, high mold temperature, unevenness, and asymmetric flow channel system. When there are problems with the mold, it is also possible to cause deformation of the rubber wheel, such as: the thickness difference in the same plastic part is too large; Having excessive sharp angles; The buffer zone is too short, causing a significant difference in thickness during turns. We should pay attention to this in the early stages.

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