- 26 -
6-11. Inspection of the gears
When checking the reduction gear, please check the lubrication by oil or grease, teeth contact, meshing state etc.
visually in addition to measuring the wear amount of both the gears. Please refer to 'Table 1' and 'Table 2' for the
wear limit.
Table 1: Gear wear criteria
Wear limit
Gear
1st stage pinion,
1st stage gear
5% or less of the full thickness tooth thickness on the pitch circle
Others
Not more than 10% of the original tooth thickness on the pitch circle
Coupling part (shaft, hole)
Table 2: Wear limit of gear (over pin (ball) method)
Category Part Name: Rated load (kg)
Original dimension (mm)
Pin diameter (mm) Wear limit (mm)
Gear
1st pinion
150 35.00 2 34.74
250 25.51 2 25.26
500 22.47 2 22.22
1st gear
150 58.40 2 58.13
250 67.75 2 67.48
500 70.83 2 70.60
2nd pinion Shared 21.53 3 20.91
2nd gear Shared 87.90 3 87.36
3rd pinion
150, 500 30.80 5 30.02
250 32.89 4 32.30
3rd gear
150, 500 83.60 5 82.64
250 79.26 4 78.42
Spline
1st pinion
(Both ends)
Shared 20.86 3 20.36
Motor pinion Shared 21.27 3 20.62
Category Part Name: Rated load (kg)
Original dimensions (mm)
Number of teeth Wear limit (mm)
Gear
1st pinion
150 10.723 4 10.655
250 7.691 3 7.620
500 7.686 3 7.613
1st gear
150 19.949 7 19.881
250 22.982 8 22.917
500 25.947 9 25.884
2nd pinion Shared 7.028 2 6.793
2nd gear Shared 25.048 6 24.876
3rd pinion
150, 500 11.841 2 11.428
250 9.540 2 9.274
3rd gear
150, 500 26.959 4 26.583
250 21.091 4 20.825
Spline
1st pinion
(Both ends)
Shared 10.723 7 10.518
Motor pinion Shared 6.6897 2 6.676
Table 3: Wear limit of gear (method for measuring tooth thickness)
To Next Page
Loading...
Need help?
General
