Compact reducer for A0 and A class electric vehicles, built around a lightweight parallel axis design with a high torsion to mass ratio.
A platform based design that trades size and weight for torque capacity, without giving up NVH performance.
ET250 pairs a compact parallel axis gear set with a lightweight housing, sized for A0 and A class vehicles where packaging space is limited. A shared design approach across the reducer range limits the number of newly developed components, supporting faster validation and higher product maturity.
Gearing uses a fine, tall tooth profile with a high contact ratio, refined through modification and NVH simulation, giving the unit strong noise and vibration performance for its size class. The housing carries IP67 protection and a rust prevention rating of no red rust after 480 hours of salt spray exposure. The assembly is validated to withstand 2000 impact cycles at 2.5 times maximum output torque, equivalent to 2500 N.m, supporting durability under repeated high load events.
Target Applications
ET250 is suited to A0 class and A class electric vehicles, as well as compact electric vehicles where packaging space is limited.
Configurations
11.714
Optional gear ratio, matched to motor output for compact vehicle segments.
221N.m
Maximum torque rating, suited to A0 and A class vehicle platforms.
20.3kg
Lightweight housing, without oil, keeping the full unit compact.
2600N.m
Output torque at the wheel end, above this threshold.
Technical Specifications
| Parameter | Value |
| Solution | Parallel axis |
| Dimensions | 213 x 445 x 26 mm |
| Center distance | 150mm |
| Weight (without oil) | 20.3kg |
| Ratio (optional) | 11.714 |
| Max speed | 14500rpm |
| Max torque | 221N.m |
| Efficiency (CLTC) | 96.53% |
| Efficiency (Max) | 98.4% |
| Protection level | IP67 |
| Rust prevention property | No red rust for 480 hours |
| Output torque | >2600N.m |
| Output speed | >1230rpm |
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What makes our ET250 different
Shared Design Approach
Fewer newly developed components across the reducer range, improving product maturity and shortening validation time.
Refined NVH Gearing
Fine, tall tooth profile with a high contact ratio, tuned through modification and simulation for quiet, low vibration operation.
Compact and Lightweight
High torsion to mass ratio in a compact structure, suited to Class A and lower vehicle models.
We can help you define the most suited solution for your application from our wide range of modular and scalable solutions