Technical parameters of ZDY250 single-stage gear reducer
ZDY250 parallel axis reducer heavy-duty industrial gearbox detailed parameters:
The ZDY250 is a single-stage, hardened-tooth-surface cylindrical gear reducer under JB/T8853-2001, built for parallel input/output shafts and ratio-driven torque multiplication in a compact footprint. Its nominal center distance is 250 mm, and the design serves input speeds up to 1,500 rpm with gear peripheral velocity capped at 20 m/
| Parameter | ZDY250 Standard Range / Typical Value |
|---|---|
| Center distance | 250 mm |
| Nominal ratio range | 1.25 – 6.3 |
| Rated input power | 22 – 315 kW |
| Permissible output torque | 7,100 – 11,200 N·m |
| Typical unit weight | 650 – 800 kg |
| Center height | 315 mm |
| Output shaft diameter | 110 mm |
| Foot bolt holes | 6 × 28 mm |
A representative configuration—250 kW at 1,485 rpm input and 2.8:1 ratio—delivers approximately 552 rpm output, illustrating how a single ZDY250 stage converts high-speed motor power into usable low-speed torque. The carburized and ground gearing reaches HRC 54–62, supporting steady operation in conveyors, mixers, and general industrial drives.
Selection takeaway: choose ZDY250 when a parallel-shaft, single-stage reduction between roughly 1.25:1 and 6.3:1 is required and the driven load falls within the 7.1–11.2 kN·m torque band—beyond that, step up to the ZDY280 or move to a two-stage ZLY frame.
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