Rubber casters or polyurethane casters, which has a higher load-carrying capacity?

LPHY is a professional casters manufacturer in China

Everyone is familiar with rubber casters and polyurethane casters. The application of casters is very popular. Rubber casters and polyurethane casters are relatively common casters. So how can you distinguish between the two casters? Let's take a look with me.

1. Rolling resistance distinction

The chemical composition of the material of polyurethane casters determines that it has lower rolling resistance than rubber, so the rolling assist of polyurethane casters is higher than that of rubber casters.​​

2. Buffer capacity distinction

The buffer capacity of the caster is directly related to the hardness of the caster.

The higher the hardness, the harder the caster, the worse the impact absorption ability and the worse the cushioning ability. The rubber hardness is usually 65-75 degrees Shore A, and the polyurethane hardness is 83-95 degrees. Because the hardness of the polyurethane caster is higher, so the polyurethane caster The buffer capacity is poor.

3. Carrying capacity distinction

The load-bearing capacity of polyurethane casters is about twice that of rubber casters. Polyurethane casters have superior resistance to crack growth, tear resistance, and anti-chipping performance. Rubber wheels often suffer from such problems and early damage.

4. Wear resistance distinction

Rubber casters are soft and comfortable, but not as wear-resistant as polyurethane casters. Generally, polyurethane casters have four times the wear resistance of rubber casters.