ARA
ARA series compact spiral bevel gearbox (aluminium housing)
Small right-angle spiral bevel gearboxes with an aluminium-alloy housing. Four sizes (ARA0, ARA1, ARA2, ARA4), ratios 1:1 and 2:1, weight 0.6 to 5.3 kg. Mounting faces on several sides allow installation in any orientation; the unit is factory-lubricated.
- Sizes
- ARA0, ARA1, ARA2, ARA4
- Ratio
- 1:1; 2:1
- Input power
- 0.005–4.94 kW
- Output torque
- 3.45–46.8 N·m
- Input speed
- 50–1450 r/min
- Shaft diameter (h7)
- 10, 15, 20, 24 mm
- Housing material
- aluminium alloy
- Weight
- 0.6–5.3 kg
Features
- Small size and low weight (0.6–5.3 kg)
- Aluminium-alloy housing
- Can be installed in any orientation — mounting faces on several sides
- Corrosion-resistant steel shafts available — specify when ordering
- Lubricant filled at the factory
- Output shaft versions: LR (double-ended), L, R (single-ended)
Designation
ARA 2 - 1:1 - LR
| ARA | ARA series |
|---|---|
| 2 | frame size |
| 1:1 | speed ratio |
| LR | shaft configuration (single-ended shaft — code L or R) |
Versions
| LR | output shaft on both sides |
|---|---|
| L | output shaft on the left only |
| R | output shaft on the right only |
Technical data
Output torque Mn2 (N·m) / input power Pn1 (kW)
| i | n1, r/min | ARA0 | ARA1 | ARA2 | ARA4 |
|---|---|---|---|---|---|
| 1:1 | 1450 | 4.13 / 0.31 | 7.15 / 1.11 | 12.25 / 1.92 | 31.9 / 4.94 |
| 1:1 | 870 | 4.13 / 0.24 | 7.15 / 0.66 | 15.78 / 1.47 | 37.2 / 3.46 |
| 1:1 | 400 | 4.13 / 0.14 | 7.15 / 0.30 | 17.74 / 0.76 | 40.2 / 1.72 |
| 1:1 | 100 | 4.13 / 0.04 | 7.15 / 0.08 | 17.74 / 0.19 | 41.9 / 0.448 |
| 2:1 | 1450 | 3.45 / 0.14 | 6.95 / 0.55 | 11.96 / 0.94 | 42.8 / 3.32 |
| 2:1 | 870 | 3.45 / 0.08 | 6.95 / 0.33 | 11.96 / 0.56 | 43.8 / 2.04 |
| 2:1 | 400 | 3.45 / 0.04 | 6.95 / 0.15 | 11.96 / 0.26 | 45.1 / 0.964 |
| 2:1 | 100 | 3.45 / 0.010 | 6.95 / 0.038 | 11.96 / 0.064 | 46.6 / 0.249 |
Main dimensions and weight
| Size | A1, mm | B, mm | D (H7), mm | Shaft ⌀S h7, mm | Key | Weight, kg |
|---|---|---|---|---|---|---|
| ARA0 | 100 | 94 | 22 | 10 | — | 0.6 |
| ARA1 | 184 | 155.5 | 35 | 15 | 5×5 | 1.5 |
| ARA2 | 252 | 226 | 42 | 20 | 6×6 | 3.2 |
| ARA4 | 280 | 265 | 62 | 24 | 8×7 | 5.3 |
Data from the manufacturer’s catalogue. Full selection tables and dimension drawings are in the PDF catalogue.



