https://www.jonyautoparts.com/wheel-rim/
1) Circumferential wear depth measurement of wheel tread
For the measurement of circumferential wear at 70mm of the tread of the wear-type wheel, push the screw to push the ruler frame to the left of the positioning block in the horizontal direction, and then drive the wheel rim thickness gauge to the root of the guide plate from bottom to top, and then push the ruler frame to the positioning block to the right. stop until. Then place the checker on the check wheel and press the checker against the top of the rim and the inner side of the rim, and then push down the screw to make the tread wear gauge against the tread, and the graduation value can be read out on the vernier 0.1mm tread wear value.
Measurement is around: -3 9mm (absolute measurement at zero position with standard wear curve).
(2) Measurement of wheel tread abrasion and dent depth.
The ruler frame with the tread wear gauge moves left and right on the guide to move to the scratch or dent depth dimension.
If it measures 3.5mm at the scratch or dent and 2mm on the same diameter line without scratch or dent, the depth of the scratch or dent is 1.5mm.
Measuring range: -3-9mm
Graduation value: {{0}}.1mm; 0.5mm (absolutely measured at zero position with standard wear curve)
(3) Measurement of the peeling length of the wheel tread
The stripped length dimension of the wheel tread is measured at the stripped part of the tread with a rim thickness gauge.
Measuring range: 0-75mm Graduation value: 1mm
(4) Rim thickness measurement
After completing the measurement operation of the tread circumference wear, push the screw upwards by 2-3mm (to avoid the influence of the slope of the tread). (If the elasticity of the spring plate is reduced and cannot remain unchanged, the vertical fastener can be tightened) and then move the ruler frame to the left to the rim, and the measured value can be read on the rim thickness vernier.
Measuring range: 12-35mm Graduation value: 0.1mm
(5) Rim thickness measurement
Place the checker on the wheel, close to the top of the rim and the inner side of the rim, read the value from the rim thickness gauge and the inner diameter of the rim, and subtract the wear value of the tread circumference to obtain the rim thickness.
Measuring range: 0-75mm
Graduation value: 1mm
(6) Rim width measurement
Push the ruler frame to the vicinity of 145mm, push the screw down to make the rim thickness gauge go over the curling edge, then move the ruler frame to the left so that the rim thickness probe touches the wheel, and read the measured value from the rim width scale .
Measuring range: 127-145mm
Graduation value: 0.1mm
(7) Measurement of tread rolling width
After completing the above operation, judge whether the curling exceeds the limit from the tread rolling width measurement line.
Measurement: 5mm
(8) Vertical wear measurement of wheel rim
Remove the vertical wear template, install it on the wheel rim thickness gauge, and fix it with fasteners to measure the vertical wear of the wheel rim. When the 15mm and above parts of the measuring ruler are in contact with the wheel rim, the vertical wear of the wheel rim exceeds the limit.
Measuring range: 12-20mm Graduation: 1mm
(9) Measurement of the distance between the tongue of the coupler at the locking position and the inner side of the hook wrist
Use the length of the right-angle side of the checker to be 135mm, and insert it horizontally between the hook tongue and the inner side of the hook wrist, and measure three points on the upper, middle and lower sides. If one of them can be inserted, it is unqualified.
https://www.jonyautoparts.com/wheel-rim/
