ZSY160 Three-Stage Gear Reducer: Complete Technical Parameters
H1: ZSY160 reducer - technical parameters and selection information
Technical parameters of ZSY160 three-stage hard tooth cylindrical gear reducer: ratio, torque
capacity, speed limit, size, and rated power listed in physical data
H2: Rated power of ZSY160 reducer gearbox (based on transmission ratio and input speed)
The nominal input power (P₁) varies substantially with ratio and input speed. At the lowest ratio (22.4) and 1500 r/min, ZSY160 is rated at 67 kW; as the ratio increases toward 100, the permissible input power falls because the required output torque rises at lower speeds.
| ominal Ratio (i) | Input Speed (r/min) | Nominal Input Power P₁ (kW) |
|---|---|---|
| 22.4 | 1500 / 1000 / 750 | 67 / 44 / 33 |
| 25 | 1500 / 1000 / 750 | 60 / 40 / 30 |
| 28 | 1500 / 1000 / 750 | 54 / 36 / 27 |
| 31.5 | 1500 / 1000 / 750 | 48 / 32 / 24 |
| 35.5 | 1500 / 1000 / 750 | 42 / 28 / 21 |
| 40 | 1500 / 1000 / 750 | 38 / 25 / 19 |
| 45 | 1500 / 1000 / 750 | 33 / 22 / 17 |
H2: ZSY160 gearbox speed ratio range
The ZSY160 hard tooth reducer covers 14 transmission ratios of ZSY standard: 22.4, 25, 28, 31.5, 35.5, 40, 45, 50, 56, 63, 71, 80, 90, and 100.
| Parameter | ZSY160 Limit |
|---|---|
| Stages | 3 |
| Max input speed (n₁) | ≤ 1500 r/min |
| Max gear peripheral velocity | ≤ 20 m/s |
| Ambient temperature | −40 °C to 45 °C (preheat oil below 0 °C) |
| Rotation | Bidirectional |
| Gear hardness | HRC 54–62 (carburized and ground) |
| Three-stage efficiency | approx. 90–94% |
H2: ZSY160 Gear unit dimensional and Physical Data
The table below summarizes representative published dimensions for the ZSY160 frame (dimensions in mm).
| Parameter | Value |
|---|---|
| Center distance (a) | 160 |
| Overall length A | ≈ 600 |
| Overall width B | ≈ 290 |
| Center height H | ≈ 375 |
| Input shaft diameter d₁ | 24 mm (at i = 22.4–71); 19 mm (at i = 80–100) |
| Output shaft diameter d₂ | 75 mm |
| Approx. weight | ≈ 155 kg |
| Oil capacity | ≈ 8.5 L |
Send us your motor power, input speed, required ratio, daily operating hours, and mounting type. We will return a ZSY160 selection with the applied service factors and thermal check—typically within one working day.


