Does rapid secondary wear happen when only the support shaft is replaced without changing the bushing?

1.Replacing only the support shaft while keeping the original bushing will inevitably cause rapid secondary wear.

2.Under prolonged operation and heavy impact loads, the bushing’s inner bore enlarges and loses its roundness. A brand-new standard shaft installed inside the worn old bushing cannot rotate concentrically during movement.

3.The hardened inner surface of the bushing wears out, leaving softened, irregular material. Excessive clearance squeezes out lubricant, causing insufficient oil film on friction surfaces and a sharp temperature increase.

4.Shaft wobble leads to uneven concentrated stress, which quickly abrades the surface of the new support shaft.

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