for complex geometries
on milled features
available on prototypes
for San Francisco clients
CNC Machined Gearbox Components for Industrial Teams
Industrial teams in San Francisco need gearbox components with precise bearing fits, concentric bores, and hardened surfaces. We machine 4140 steel, 8620, and aluminum gear housings, shafts, and bearing caps to ±0.0005" on critical fits. CMM inspection and material certs on every order.
Transmission Materials
4140 steel, 8620 case-hardening steel, and aluminum with mill certs.
Bearing Fit Precision
±0.0005" on bearing bores and shaft journal diameters.
Full Documentation
CMM reports, material certs, and heat treat records.
Bay Area Innovation Meets Industrial Equipment Manufacturing
San Francisco and the broader Bay Area blend technology innovation with traditional industrial equipment needs. McMillan Electric in the East Bay manufactures motors for pump and compressor applications. SFPUC's water and power operations — including Hetch Hetchy infrastructure — require pumps, valves, turbines, and treatment equipment. Chevron's Richmond refinery drives demand for API-spec valves, pumps, and heat exchangers, and the region's food and beverage processing sector (including Napa and Sonoma wineries) requires sanitary pumps, valves, and material-handling equipment.
RivCut machines precision industrial components for Bay Area equipment builders — pump impellers, valve bodies, compressor fittings, and turbine housings — with the quality documentation San Francisco's regulated industries demand.
SFPUC
San Francisco Public Utilities Commission operating Hetch Hetchy water and power infrastructure with pumps, valves, and turbines
Chevron (Richmond)
Richmond refinery driving demand for API-spec valves, pumps, and heat exchangers
McMillan Electric
East Bay manufacturer of motors for pump and compressor applications
What San Francisco Industrial Equipment Teams Usually Order
| Typical quantity | 5–25 replacement parts · 25–200 production runs |
|---|---|
| Common materials | Aluminum 7075-T6 |
| Key requirement | Material certs, dimensional reports, and corrosion-resistant alloy traceability |
| Typical lead time | 7–12 business days based on material and complexity |
| Who orders | Maintenance engineers and procurement managers at industrial OEMs and plants |
Gearbox Components for San Francisco Teams
Gear housings, shafts, bearing caps, coupling hubs, and pinion blanks machined to print.
Gear Housings
Split and mono-block gearbox housings from 4140 steel and aluminum with precise bearing pocket bores and oil channel features.
4140 SteelShaft Assemblies
Input, output, and intermediate shafts from 4340 and 8620 steel with keyways, splines, and precision journal diameters.
4340 & 8620Bearing Caps
Steel and aluminum bearing end caps with precise bore registers, oil seal grooves, and bolt hole patterns.
Bore registerCoupling Hubs
Steel and aluminum flexible coupling hubs with precise bore, keyway, and set screw features for shaft connections.
Keyed & splinePinion Blanks
4140 and 8620 steel pinion blanks machined to pre-grind dimensions with precise bore and face features.
Pre-grind blanksAdapter Plates
Aluminum and steel motor-to-gearbox adapter plates with precise pilot registers and bolt circle patterns.
Motor adapters12 Manifolds. 6 Days. Leak-Free Assembly.
A Bay Area pump manufacturer needed hydraulic manifold blocks with cross-drilled passages, O-ring gland grooves, and precise port thread depths for high-pressure fluid systems. Teams near companies like SFPUC trust this kind of precision and documentation rigor.
Every part shipped with full documentation:
- CMM dimensional report — port locations and passage alignment verified
- Material cert with heat lot and ASTM B209 compliance
- Surface finish verification on sealing surfaces
- Thread gauge verification on all ported connections
What San Francisco Industrial Equipment Buyers Should Know
Chevron Richmond refinery specifications require API-compliant valve and pump component machining with full material traceability
Ensure your CNC shop understands API 600, 602, and 608 requirements and can provide the documentation refineries demand.
Bay Area water and power utilities (SFPUC, EBMUD) require pump and valve components meeting AWWA standards
Verify your CNC shop can source compliant materials and provide the certifications public utilities require.
San Francisco's food and wine industry needs sanitary pump and valve components for FDA-regulated processing
Confirm your shop can achieve the required surface finishes and provide 316L material certifications with every shipment.
When Your Local Shop Can't Keep Up
When demand surges at local shops, your orders wait. We give you fixed lead times, instant quoting, and full documentation — every time. San Francisco's industrial equipment 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 Francisco Industrial Equipment Teams
Industrial Equipment CNC Machining in Other Cities
We serve industrial-equipment teams in cities across the US.
Upload Your CAD File
Gearbox & Power Transmission, 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