We machine differential components to your drawing for OEM and Tier programs: housings, cases, covers, bearing caps and flanges for ICE axles and EV e-axles.
A differential splits drive torque between two wheels and lets them turn at different speeds through a corner. DekAutomotive machines the differential housing, the differential case, covers, bearing caps and flanges to OEM drawings, for ICE axles and EV e-axles.
From engineering samples to repeat production, bearing bores and flange runout are CMM inspected and each batch is traceable. All sit within our transmission and driveline components, alongside gearbox housing machining and transmission housings.
Ductile iron housings for axle center sections, machined from cast blanks to your drawing. We finish the carrier and pinion bearing bores, faces and threads that hold the bearings and the oil.
Ductile iron or forged steel blanks, with machined bearing journals, ring-gear flange, cross-shaft bore and window profiles. The case is a structural rotating part: we control dimensions, material and documentation; your engineering team owns the design validation.
Covers close the housing and carry the fill and drain ports. Bearing caps and adjusters clamp the carrier bearings and are machined as a matched set with the housing, with machined sealing faces and bolt patterns.
Companion and output flanges turned and drilled to drawing, in forged or alloy steel such as 4140. Faces, bores and bolt patterns follow your drawing and its GD&T.
ASTM A536 65-45-12 or 80-55-06 (EN-GJS-500-7, EN-GJS-600-3) for axle housings and differential cases; cast blanks machined to your drawing.
Cast aluminum A356-T6 or A380 for the EV e-axle and reducer housings that carry the differential, machined to your drawing.
Forged or alloy steel, for example 4140, for differential cases in high-torque drivelines and for companion and output flanges.
The table summarizes how we machine and inspect differential components; tolerances, GD&T and finishes come from your drawing and specification.
| Manufacturing Parameter | Technical Specification |
|---|---|
| Part types | Housings, cases, covers, bearing caps, flanges |
| Materials | Ductile iron ASTM A536, A356-T6 or A380, 4140 steel |
| Critical features | Bearing bores, ring-gear flange, cross-shaft bore |
| GD&T | Per your drawing to ASME Y14.5 or ISO 1101 |
| Threads | Thread class per drawing, for example 6H; gauged |
| Inspection | CMM: bore coaxiality, flange runout, true position |
| Documentation | FAI, inspection reports, MTRs per batch, on request |
| Quantities | Engineering samples to repeat production |
Bearing bore coaxiality and flange runout are checked by CMM to the bearing axis.
Each batch is traceable, with material certificates on request.
Housings and cases machined to your drawing, from engineering samples to repeat production.
We integrate advanced machining, specialized materials, and surface finishing to deliver mission-critical parts that meet every rigorous automotive standard.
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