for complex geometries
on milled features
available on prototypes
process ready
CNC Machined Transmission Parts for Automotive Teams
Transmission teams in San Jose need parts with tight bore fits and precise gear geometry. We machine aluminum, steel, and iron transmission components to ±0.001" on general features and tighter on critical bores. CMM inspection on every order.
Transmission Alloys
Aluminum, 4340 steel, and ductile iron with material certs.
Bore & Journal Precision
±0.0001" on critical gear bores and journal diameters.
QC Docs
CMM inspection reports on every transmission component order.
Silicon Valley Powers the Future of Automotive Tech
San Jose sits at the crossroads of automotive innovation — Tesla's Fremont assembly plant is minutes away, while Lucid Group's headquarters in Newark and dozens of AV startups like Zoox (Amazon) and Aurora test autonomous vehicles across the South Bay. Tier 1 suppliers including BorgWarner's electrification center and Aptiv's autonomous driving labs maintain Valley offices to stay close to the software-defined vehicle revolution.
RivCut gives Silicon Valley automotive teams instant quoting, fast-turn prototyping, and production machining with the dimensional precision EV drivetrain and sensor-housing programs demand.
Tesla
EV manufacturer with Fremont assembly plant producing Model S, 3, X, and Y
Lucid Group
Luxury EV maker headquartered in Newark, CA
Zoox (Amazon)
Autonomous vehicle company developing purpose-built robotaxis
BorgWarner
Drivetrain and electrification components supplier with Silicon Valley operations
What San Jose Automotive Teams Usually Order
| Typical quantity | 5-25 validation or early production parts |
|---|---|
| Common materials | 6061-T6 aluminum, 7075-T6 aluminum, 304 stainless steel |
| Key requirement | Full dimensional inspection report and material certification with every shipment |
| Typical lead time | 5-10 business days depending on part complexity and finishing |
| Who orders | Mechanical engineer or hardware program manager sourcing prototype or pilot-run parts for EV or autonomous vehicle systems |
Transmission Parts for San Jose Teams
Gear housings, shift forks, input shafts, and valve bodies machined to print.
Gear Housings
Aluminum and iron transmission housings with precise bearing bore and alignment features.
Al & ductile ironShift Forks
Steel shift forks with precise rail bore fits and engagement pad geometry.
4140 steelInput & Output Shafts
4340 steel transmission shafts with precise spline forms, bearing journals, and snap ring grooves.
4340 steelClutch Drums
Aluminum and steel clutch drum housings with precise spline forms and clutch pack bores.
Spline formsValve Bodies
Aluminum hydraulic valve bodies with precise spool bore diameters and check ball seat machining.
Spool boresBearing Carriers
Aluminum bearing carrier housings with precise press-fit bore diameters and register surfaces.
Press-fit bores10 Housings. 7 Days. Full Dimensional Report.
A South Bay automotive team needed prototype transmission housings with precise bore concentricity, gasket face flatness, and mounting boss positions. Teams near companies like Tesla trust this kind of precision and documentation rigor.
Every part shipped with full documentation:
- CMM dimensional report — all bore and face callouts verified
- Material cert with heat lot traceability
- Surface finish verification per drawing callout
- Dimensional layout report per PPAP requirements
What San Jose Automotive Buyers Should Know
EV prototyping in the Bay Area demands shops that can hold ±0.001" on aluminum motor housings
verify 5-axis capability and GD&T fluency before quoting.
Silicon Valley AV companies iterate fast
look for CNC suppliers offering 3-5 day prototype turns with online quoting to keep your sprint cycles on track.
Battery-enclosure and thermal-plate machining requires large-format CNC beds
confirm your supplier can handle 48"+ aluminum plates without fixture workarounds.
When Your Local Shop Can't Keep Up
When production runs fill your local shop's queue, prototypes sit. We give you fixed lead times, instant quoting, and PPAP-ready documentation — every time. San Jose's automotive sector demands it.
Documentation-Ready
Dimensional reports, material certs, and process records ship with every order — no chasing paperwork after delivery.
Full Material Traceability
Every bar ships with mill certs and heat lot numbers. Full chain of custody from raw stock to finished part.
CMM Inspection, Every Part
NIST-traceable CMM verification on every critical dimension before anything ships. No sampling — we inspect every part.
5–7 Day Prototype Turnaround
Most first articles ship in under a week. Rush available for simpler geometries. Confirmed ship date at order.
Need our full quality documentation? Email us — we'll send everything your team needs.
From File to Part in 3 Steps
Simple, clear, and designed for fast-moving teams.
Upload & Quote
Upload your STEP or IGES file, select material and finish, and get an instant AI price. Every quote includes a free DFM review.
We Machine & Inspect
Parts run on our CNC mills and lathes with CMM inspection on every order. We verify every critical dimension before shipping.
Ship with Full Docs
Your order ships with dimensional reports, material certs, and full paperwork — everything your quality team needs.
Questions from San Jose Automotive Teams
Automotive CNC Machining in Other Cities
We serve automotive teams in cities across the US.
Upload Your CAD File
Transmission Parts, structural brackets, housings, and more — we machine them all. Most orders ship in 5 to 7 business days.
No minimums · 100% Made in USA · Never brokered · Ships anywhere in the US
Currently accepting new projects