On-Demand CNC Platform

CNC Machined
Gearbox & Power Transmission

We machine gearbox and power transmission components for US industrial teams. Gear housings, shaft assemblies, bearing caps, and coupling hubs from 4140 steel, 8620 steel, and aluminum to ±0.0005".

Upload CAD for Instant Quote Talk to an Engineer

Upload your STEP file for immediate pricing and DFM feedback.

5-Axis

CNC milling for
complex geometries

RivCut capability

±0.0005"

Tolerances on
gearbox & power transmission features

Industrial Equipment standard

ISO 9001

Documentation
ready on request

Quality system

7-Day

Standard lead time
for most parts

Most projects

ISO 9001

AGMA standards

Nationwide Service

Gearbox & Power Transmission CNC Machining
Across the US

Click any highlighted state to find city-specific gearbox & power transmission machining pages.

Cities available Coming soon

Gearbox Parts We Machine

Gearbox Components for US 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 Steel

Shaft Assemblies

Input, output, and intermediate shafts from 4340 and 8620 steel with keyways, splines, and precision journal diameters.

4340 & 8620

Bearing Caps

Steel and aluminum bearing end caps with precise bore registers, oil seal grooves, and bolt hole patterns.

Bore register

Coupling Hubs

Steel and aluminum flexible coupling hubs with precise bore, keyway, and set screw features for shaft connections.

Keyed & spline

Pinion Blanks

4140 and 8620 steel pinion blanks machined to pre-grind dimensions with precise bore and face features.

Pre-grind blanks

Adapter Plates

Aluminum and steel motor-to-gearbox adapter plates with precise pilot registers and bolt circle patterns.

Motor adapters

Materials

4140 steel, 4340 steel, gray cast iron, aluminum 6061-T6, bronze

Tolerances

±0.0005"

Finishes

Anodize, Passivation, Hard Coat

Certifications

ISO 9001, AGMA standards

Nationwide Service

Gearbox & Power Transmission CNC Machining
by City

We ship precision gearbox & power transmission to teams in 110 cities across the US.

ChicagoTop Market

Illinois

Chicago has been an industrial equipment powerhouse for over a century. Dover Corporation's headquarters in Downers...

Key players: Dover Corporation, Illinois Tool Works (ITW)

115 industrial equipment establishments

DetroitTop Market

Michigan

Detroit's deep manufacturing heritage extends well beyond automotive into heavy industrial equipment. Roper...

Key players: Parker Hannifin, Eaton Corporation

320 industrial equipment establishments

CharlotteTop Market

North Carolina

Charlotte's industrial equipment market is driven by the region's energy, water, and manufacturing sectors. SPX...

Key players: SPX Technologies, Ingersoll Rand

17 industrial equipment establishments

MilwaukeeTop Market

Wisconsin

Milwaukee is one of America's most concentrated industrial equipment manufacturing centers. Rexnord (now part of Zurn...

Key players: Rexnord (Zurn Elkay), A. O. Smith Corporation

IndianapolisTop Market

Indiana

Indianapolis's central location and manufacturing heritage make it a natural hub for industrial equipment. Allison...

Key players: Allison Transmission, Carrier Global

From CAD File to Shipped Parts

Three steps. No runaround. You always know where your project stands.

Step 1

Upload Your CAD File

Send your STEP or IGES file. Select material, quantity, and finish. We review for manufacturability and respond fast.

Step 2

We Machine & Inspect

Your parts run on our CNC mills and lathes. Every order gets CMM inspection. We verify every critical dimension before shipping.

Step 3

Ship with Full Documentation

Parts ship with dimensional inspection reports, material certs, and full traceability. Everything your quality team needs.

Upload CAD for Instant Quote

Buyer Tips

Tips for Buying Industrial Equipment
Gearbox & Power Transmission Parts

What industrial equipment procurement teams should know before ordering gearbox & power transmission components.

Allison Transmission's presence means Indianapolis shops understand high-volume power-transmission component machining. Leverage this regional expertise for your gearbox housings, shafts, and bearing bores.

ISO 9001

Indiana's pharmaceutical manufacturing corridor requires sanitary pump and valve components with full material traceability. Ensure your CNC partner provides mill test reports and can meet FDA 21 CFR documentation standards.

ASME

Indianapolis's central U.S. location minimizes shipping costs and transit times for industrial equipment components. Factor logistics savings into your total cost comparison when evaluating Midwest CNC shops against coastal alternatives.

API

FAQ

Common Questions About
Gearbox & Power Transmission Machining

What materials do you use for gearbox components?

We machine 4140 and 4340 steel, 8620 case-hardening steel, aluminum 6061 and 7075, and cast iron. Every order ships with mill certs and heat treat documentation.

What tolerances do you hold on bearing bores and shaft journals?

We hold ±0.0005" on bearing bore diameters and shaft journal fits. CMM inspection verifies every critical feature before shipping.

How fast can you turn around gearbox housing prototypes?

Most gearbox housing prototypes ship in 5 to 10 business days depending on complexity. Simple shafts and caps ship faster.

Can you machine gearbox housings with internal bearing pockets?

Yes. We machine split and single-piece gearbox housings with precise bearing pocket bores, oil channel grooves, and alignment dowel features.

How do I get a quote for gearbox component machining?

Upload your STEP or IGES file at rivcut.com/quote or email hello@rivcut.com.

More Industrial Equipment Services

Get Your Gearbox & Power Transmission
Parts Right

Send us your files. We'll review them for free and get you an honest quote within 24 hours. No pressure. No games.

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No minimums · Prototypes welcome · NDA ready · Ships anywhere in the US

CNC MachinedGearbox & Power Transmission

Gearbox & Power Transmission CNC MachiningAcross the US

Gearbox Components for US Teams

Gear Housings

Shaft Assemblies

Bearing Caps

Coupling Hubs

Pinion Blanks

Adapter Plates

Gearbox & Power Transmission CNC Machiningby City

ChicagoTop Market

DetroitTop Market

CharlotteTop Market

MilwaukeeTop Market

IndianapolisTop Market

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CNC Machined
Gearbox & Power Transmission

Gearbox & Power Transmission CNC Machining
Across the US

Gearbox & Power Transmission CNC Machining
by City

Tips for Buying Industrial Equipment
Gearbox & Power Transmission Parts

Common Questions About
Gearbox & Power Transmission Machining

Other Industrial Equipment
CNC Machining

Get Your Gearbox & Power Transmission
Parts Right