


JA87 Front Differential
JA87 is a front differential solution for off-road vehicle platforms that need reliable power distribution, practical installation and support for demanding terrain. It can be evaluated for ATV, UTV, SSV and other specialty vehicle programs. During integration, engineers should confirm the required ratio, input rotation, torque capacity, differential or locking strategy, mounting geometry and side-shaft interfaces. Vehicle weight, tire diameter, gradeability targets and shock-load conditions should also be considered. Zhejiang Jessica Transmission supports OEM customers with technical discussion, drawing review, prototype samples, verification coordination and production supply planning. For accurate selection, provide the target vehicle layout and performance requirements to our engineering sales team.
Key Parameters
- Ratio: 33 : 9
- Drive gear rotation: clockwise (from vehicle rear side)
- Input static torque capacity: 1300N·m
- Noise level: ≤78dB(A)
- Function highlights: Relay control E-motor 2/4WD and Differential lock, 4 planet gears
- Input Interface: External Splines
Input and Output Parameters
| Input | Output | ||
|---|---|---|---|
| External splines | Side shafts(Int Splines) | ||
| Module | 1.25 | Module | 1.0 |
| Tooth No. | 18 | Tooth No. | 21 |
| Pressure angle | 30° | Pressure angle | 45° |
| Major diameter | Ø24.75 | Major diameter | Ø22.4 |
| Minor diameter | Ø22.125 | Minor diameter | Ø20.4 |
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Global Contact
China Headquarters
South Xiangmei Road
Mexico Facility
Calle Calidad #201, Vynmsa Apodaca Industrial Park, Apodaca, Nuevo León, México C.P. 66628
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