How to regularly check and adjust the gap between screw and support seat

Date: 2025.06.27 Views: 35

Screw support seat is an important support element in mechanical equipment, mainly used to support and fix the screw to ensure its precision and stability. But once the support seat has a gap, the expected performance cannot be achieved. So, how should we check and adjust the gap between the support seat?

First, check the appearance of the support seat for signs of cracks, deformation, or wear.

Also, make sure the dust cover (if any) is intact to prevent dust and debris from entering.

Then check whether the fastening bolts of the support seat are loose. Loose bolts may cause the position of the support seat to be shifted, which in turn affects the clearance; in addition, it is necessary to check the lubrication of the support seat and the associated parts to ensure that there is sufficient lubricant to minimize friction and wear.

Finally, the gap between the support seat and the associated parts needs to be measured with a suitable tool to ensure that the gap is within the manufacturer's recommended range.

Before adjusting the clearance, you need to make sure that the mechanical equipment has been stopped and disconnected from the power supply. At the same time, prepare the required tools and adjusting shims, the following is the method of adjusting the clearance:

1> Adjusting shims: Adjust the clearance of the bearings by increasing or decreasing the shims, so that it meets the design requirements of the equipment. The thickness of the shims should be moderate, too thin or too thick may affect the precision and stability of the support seat.

2>Preloading force adjustment: For the support seat that needs preloading, the prescribed preloading force can be realized by adjusting the thickness of shims or using preloading nut.

3>Reassembly: After the adjustment is completed, reinstall the backing caps or other fixtures of the support bearings and make sure they are tight.

After the adjustment is completed, it is also necessary to test the operation, start the machinery and equipment for low-speed running test, check the operation of the support seat and related components to ensure that there is no abnormal noise and vibration. The gap of the screw support seat will directly affect the precision of the equipment, through the appearance inspection, bolt fastening, lubrication confirmation and accurate measurement, combined with gasket adjustment and preload optimization methods, can effectively ensure its stable operation.

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