Light and ultralight heavy-load radial-bearing radial-play measuring device

Abstract

The light or even lighter heavy load annular bearing radial end play measurement device comprises the core shaft sleeve, press cover, inspection lever, press wheel and bracket, with the press wheel between the bracket and the bearing to be inspected, the axial gap 0.20-0.25 mm of it with the bracket, slot width on the press wheel 3mm+-0.01mm. It is reasonable in design, simple in structure, easy in operation. It can get rid of the locating block through elevating the press wheel and the bracket manufacturing precision, reducing the slot width of the press wheel, which meets the inspection bar width 3+-0.01mm, allowing the gap between the press wheel and the bracket 0.20-0.25mm, realizing bearing axial symmetrical center and loading center automatically in the center. It applies to the light heavy load annular bearing axial end play measurement with width over 6mm.

Description

technical field [0001] The invention belongs to the technical field of bearing detection, and mainly relates to a measuring device for the radial clearance of a light / ultra-light series heavy-duty centripetal bearing. Background technique [0002] Radial clearance is one of the important testing items of finished bearings, which directly affects the running performance of bearings, such as noise, vibration, life, etc. The load generally recognized by the bearing industry is 5 ~ 15kg. The measuring range of the radial clearance tester for heavy hammer radial bearings is: outer diameter 32mm ~ 150mm, width > 10mm. [0003] The traditional measuring device for measuring the radial clearance of radial bearings (shown in Figure 1), before the measurement, will select the appropriate mandrel sleeve 1, gland 2 and measuring instrument according to the size of the bearing and install them on the instrument. Fix the inner ring of the bearing 3 to be tested on the spindle sleeve, ...

AI Technical Summary

Problems solved by technology

Limited by the size of the centering block device 6 and the measuring rod 4, the width of the groove of the pressure roller 5 must reach 5.5mm, so it can only measure bearings with a width of more than 10mm. For light / extra light series (with a width of less than 10mm) The radial clearance of heavy-duty bearings cannot be measured

For bearings below 10mm, pneumatic measuring instruments are currently used to measure radial clearance in the industry, but the accuracy of the measured value is affected by the stability of the air source, and it is not suitable for mass production measurement

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