What is the function of bearing seat adjusting gasket?

The governor has the fault to be unable to guarantee the engine under different load steady idle speed and limit the high speed;Engine instability, load increase or decrease, the speed will change dramatically.This is the need to adjust the bearing gasket.

Bearing preloaded during the installation process to control the amount of main is angular contact ball bearing, eccentric bearing, tapered roller bearings, taper Kong Shuang row cylindrical roller and so on, after the several kinds of bearing installation phase, is to accurately adjust clearance, namely prestressing quantity control (load), especially for the machine tool spindle, etc have strict request for rotating accuracy, noise, temperature rise of shaft system, not only in the installation for the first time quantity (load) to control the preload adjustment clearance, but also need to adjust in use.

(1) measure the starting friction torque of eccentric bearings, measure the relationship between the starting friction torque of bearings and axial load in advance, and adjust the preload by controlling the starting friction torque, which is often used for the axial preload of tapered roller bearings installed in pairs

(2) measure the axial displacement of the bearing, and measure the relationship between the axial load and the axial displacement of the eccentric bearing for the tapered hole bearing in advance, so as to control the axial displacement to adjust the preload

(3) measure the deformation amount of the preloaded spring, and measure the relationship between the load of the spring and the deformation in advance, so as to control the deformation amount to adjust the preloaded of the fixed pressure

(4) measure the tightening torque of the nut. When pretightening the bearing with the nut, adjust the preload by controlling the tightening torque of the nut

(5) use the bearing end cover and pad, tighten one end of the bearing, the other end of the bearing is not put into the gasket first, tighten the screw, when you feel that the shaft can not freely rotate, indicating that there is no clearance in the shaft system, with a thickness gauge equal to the gap between the end cover and the bearing seat, add this value to the required clearance value is the bearing seat to adjust the gasket thickness

(6) using interval sets, in the inner ring spacer length can be supported by the bearing outer ring spacer length and calculate the size, also can be measured to determine the eccentric bearing pre-tightening load test is more difficult, a few with a special instrument to detect, the majority of the shaft with a dial gauge test axial and radial displacement of the starting friction torque to test or measurement, using special instruments and some structure of pre-tightening load testing and adjustment, realize the pre-tightening load can be controlled.

Zhuolida has modern plant and precise bearing seat adjustment gasket production and testing equipment.The key equipment includes: import etching production line, constant temperature and humidity dust-free operation room, exposure machine, developing machine, secondary element measuring instrument, automatic decoating production line, etc.All motor adjustment pieces have passed the factory production inspection, quality testing, outbound verification, layer upon layer check, the quality is trustworthy!