Technical Data Reducers Miter and Bevel Gear Boxes Technical Data
1. Efficiency
Miter Gear Boxes and ARA Gear Boxes use precision spiral bevel gears for high efficiency.
(1) ED2 ~ ED12:98% (2) ED16 ~ ED25:95% (3) ARA3 ~ ARA6:98%
The above may change depending on rotation speed, ambient temperature, and/or load rate.
2. Backlash
The backlash is the total mechanical clearance that can be calculated in the rotating direction of the cross shaft when the lateral shaft is fixed.
2-1. Miter Gear Box
ED | Reduction Ratio | ||||
---|---|---|---|---|---|
1:1 | 1.5:1 | 2:1 | 2.5:1 | 3:1 | |
2 | 0.20 ~ 1.51 | - | - | - | - |
4 | 0.15 ~ 1.16 | - | 0.12 ~ 0.65 | - | - |
6 | 0.19 ~ 1.00 | 0.17 ~ 0.85 | 0.17 ~ 0.59 | 0.09 ~ 0.51 | 0.09 ~ 0.51 |
7 | 0.24 ~ 0.94 | 0.17 ~ 0.79 | 0.15 ~ 0.50 | 0.17 ~ 0.53 | 0.08 ~ 0.45 |
8 | 0.19 ~ 0.82 | 0.14 ~ 0.70 | 0.12 ~ 0.45 | 0.14 ~ 0.47 | 0.07 ~ 0.40 |
10 | 0.18 ~ 0.75 | 0.16 ~ 0.65 | 0.11~ 0.58 | 0.12 ~ 0.42 | 0.12 ~ 0.42 |
12 | 0.16 ~ 0.65 | 0.13 ~ 0.57 | 0.12 ~ 0.53 | 0.13 ~ 0.40 | 0.10 ~ 0.37 |
16 | 0.16 ~ 0.66 | - | 0.12 ~ 0.51 | - | - |
20 | 0.16 ~ 0.60 | - | 0.09 ~ 0.43 | - | - |
25 | 0.15 ~ 0.53 | - | 0.09 ~ 0.38 | - | - |
Note) Low-backlash models are available for applications that require positioning accuracy. (See catalog )
2-2. ARA Gear Box
ARA | Reduction Ratio | |
---|---|---|
10 (1:1) | 20 (2:1) | |
3 | 0.31 ~ 1.97 | 0.31 ~ 1.75 |
5 | 0.24 ~ 1.42 | 0.19 ~ 1.15 |
6 | 0.18 ~ 1.16 | 0.16 ~ 0.94 |