


Q891Front Differential
The Q891 front differential supports off-road and utility vehicle drivetrain development where traction management, axle packaging and durable torque transfer are key design considerations. It is suitable for OEM assessment in front-axle configurations and can be matched to project-specific input, output and mounting requirements. Selection should account for vehicle mass, wheel and tire dimensions, peak input torque, expected gradients, impact loading, operating temperatures and lubricant strategy. Zhejiang Jessica Transmission works with engineering and purchasing teams through requirement review, sample preparation, technical validation and production launch. Contact us with your target vehicle information to confirm available ratios, interfaces, differential functions, drawings and commercial conditions.
Key Parameters
- Ratio: 33 : 9
- Drive gear rotation:Counter-Clockwise(from vehicle rear side)
- Input static torque capacity: 1400N·m
- Noise level: ≤80dB(A)
- Function highlights: Relay control E-motor 2/4WD and Differential lock, 4 planet gears
- Input Interface: Input sleeve or Mounting flange
Input and Output Parameters
| Input (interface optional) | Output | ||||
|---|---|---|---|---|---|
| Input sleeve(Int Splines) | Connect Flange | Side shafts(Int Splines) | |||
| Module | Dp17 | Centring Diameter | Ø44(g8) | Module | 1.0 |
| Tooth No. | 20 | Centring Height | 4 | Tooth No. | 21 |
| Pressure angle | 37.5° | Thread hole | Ø74 | Pressure angle | 45° |
| Major diameter | Ø31.724 | Thread Size | M10*1.25 | Major diameter | Ø22.4 |
| Minor diameter | Ø28.682 | Thread No. | 4 | 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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