1, planetary gear motor 24v wholesale bearing axial clearance adjustment

The inner ring of the bearing is positioned by the shaft shoulder, the outer ring is pre-tightened by the bearing gland on both sides, and the axial clearance of the bearing is adjusted by the pre-tightening force of the bearing gland on both sides. Considering that the clearance of the bearing is reduced due to heat, the axial clearance of the bearing should be set aside. For the axial clearance of the bearing, there is no corresponding standard in China.

In actual operation, the axial clearance is less affected by interference assembly, load operation and other factors, so the original clearance of the bearing is usually adjusted as the standard during installation.

With the planetary gear motor 24v wholesale uncapped, install the shaft assembly in place, tighten the gland bolts on both sides of the bearing in place, and apply the necessary axial pressure to one end of the shaft.

The size of the axial force can be referred to the axial force borne by the shaft in operation, and then the feeler ruler is used to measure the gap 1 and gap 2. After the measurement is completed, the sum of the gap 1 and gap 2 is calculated and compared with the original clearance measured by the bearing to ensure that the difference between the two is within ±40μm. If the requirements cannot be met, the gasket can be adjusted according to the increase until the requirements are met.

2, planetary gear motor 24v wholesale bearing radial clearance adjustment

The radial clearance of the bearing plays a very important role in the stable operation of the bearing, and for the radial clearance of the bearing, GB/T4604-2006 has the corresponding standard, so in the specific application, just look up the table to know the upper and lower limits of the radial clearance of the bearing.

The specific adjustment method: In order to facilitate the measurement, the bearing caps on both sides should be removed before adjustment, the bearing is installed on the bearing seat, cover the upper cover, and use a torque wrench to evenly tighten the four tightening bolts on both sides of the bearing. The pre-tightening force of the bolts can be referred to the corresponding provisions of the implementation standard, and after tightening in place, the measured value is compared with the standard value in the table.

To the planetary gear motor 24v wholesale bearing model 23232CC/W33. According to GB/T4604-2006, the maximum radial clearance of the bearing is 110μm and the minimum is 75μm.

Adjust the bearing clearance according to the comparison result. If the adjustment value is less than the minimum value, it indicates that the installation clearance of the bearing is too small, and the clearance should be increased. Copper sheet can be placed in the bolt holes of the upper and lower joint surfaces of the bearing box to adjust. If the adjustment value is greater than the maximum, it indicates that the bearing installation clearance is too large, can be adjusted in the bearing box and bearing outer ring joint surface into the copper sheet, pay attention to the copper sheet do not plug the oil hole of the bearing.

The above method usually requires multiple adjustments to adjust the radial clearance of the bearing to the standard range. After the clearance adjustment meets the standard, reinstall the installation.

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