1. Shaft Head Welding:
The welding heat causes the seals to melt together, obstructing the normal rotation of the rollers and leading to the wear-through of the roller skin.
2.Material spillage:
The scattering of materials causes sharp objects to get stuck between the support frame and the rollers, leading to friction during the rotation of the rollers, which can cause the roller bearing seat to wear out or the rollers to stop rotating, resulting in wear on the roller surface.
3.Idler roller submerged in water:
The idler rollers were submerged in water during operation or were washed by a high-pressure water pump, causing damage to the bearings.
4.Standard idlers are used in the material drop section:
Using ordinary rollers to replace cushion rollers results in the roller surface deforming and becoming concave due to the strong impact of the material.
5.Improper storage:
①The conveyor rollers were stored outdoors for a long time, with one side immersed in a pile of sand and gravel, causing the gravel to penetrate the sealing parts and rendering them unusable. ②The idler roller fell from a height and the shaft end hit the ground, causing damage to the idler roller.
6.Incorrect selection:
To reduce procurement costs, a non-standard model with a shorter roller sleeve length and a longer shaft was chosen to replace the longer-grade idler rollers.
7.Incorrect installation
The idler rollers are not installed properly, and the roller surface directly contacts the middle support of the bracket.