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Precision Machining for Custom Gearbox Housings

DEK manufactures complex gearbox housings using 5-axis machining and precision boring to achieve critical feature tolerances of ±0.01mm and superior surface finishes. We deliver parts with exacting coaxiality and parallelism. In addition, we also offer anodizing or painting. Our experienced DEK team ensures the best machining solution, and machined parts undergo in-house CMM quality control.
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Gearbox Housings
Introduction

Custom Precision Machining for Complex Gearbox Housings

Custom Precision Machining for Complex Gearbox Housings

Large gearbox housings require precise bearing bore alignment, flat sealing surfaces, and controlled wall thickness. Maintaining coaxiality between shafts and ensuring smooth assembly fit are key challenges.

At DEK, we use multi-axis CNC boring and milling centers, combined with rigid fixturing, to maintain bore-to-bore positional accuracy within ±0.01 mm. Sealing faces are precision milled and surface-finished to meet required Ra values.

Our inspection process includes CMM verification of shaft alignment, surface roughness measurement, and thread gauging, ensuring every housing meets functional requirements before shipment.

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±0.01 mm

±0.01 mm bore tolerance

≤0.02 mm

≤0.02 mm coaxiality

Ra 0.8 µm

Ra 0.8 µm sealing face finish

1.5 m

Up to 1.5 m housing size
capabilities

Capacidad de mecanizado

High-Precision Bore Machining

Bores are finish-machined using CNC boring mills with fine-tuned feed rates to maintain roundness ≤0.01 mm. CMM verifies center distances and positional accuracy.

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Coaxiality Control

Rigid multi-axis setups ensure shaft bore alignment ≤0.02 mm across long spans. Custom fixtures eliminate thermal distortion.

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Large-Part Milling

Capable of handling gearbox housings up to 1.5 m, with precision face milling for flatness ≤0.03 mm.

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Threaded Hole Accuracy

Tapping and thread milling performed post-finishing, using thread gauges for 100% verification of critical fastener points.

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Full Coaxiality Verification

Each housing undergoes CMM measurement of all bearing bores, checking positional accuracy, runout, and concentricity against drawings.
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Controlled Machining Workflow

DFM review before production, followed by first article inspection (FAI) and SPC during machining for consistent results.
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Protective Export Packaging

Large housings are packed in custom-fit, non-fumigation wooden crates with internal bracing to prevent bore or flange damage.
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Stable Delivery Planning

Dedicated scheduling for large part machining, with capacity buffers for urgent orders. Traceable workflow from machining to dispatch.
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TESTIMONIALS

Testimonios

"The bore alignment was spot on, no adjustment needed during assembly."
James Walker, Mechanical Engineer
"They handled our oversized housings with zero transport damage."
Carlos Mendes, Purchasing Manager
"The consistency across the entire batch of housings was remarkable. The CMM reports provided gave us great confidence."
Lars Hoffmann, Quality Engineer
"Communication was fast, and they understood our coaxiality requirements right away."
Ethan Carter, Project Engineer
"Even with the large casting, surface finish was within spec."
Patrick O’Neill, Maintenance Manager
"Thread gauges passed on all critical holes, saves us rework time."
Ravi Sharma, Production Supervisor
"The wooden crate packaging was sturdy, no scratches on sealing faces."
Tomáš Novák, Procurement Specialist
"Lead time was realistic and they kept to schedule."
Hiroshi Tanaka, Plant Manager
"DEK delivered a complex, 5-axis part on time, which was critical for our project timeline. Very reliable."
Marco Rossi, Design Engineer
"We received the housings fully inspected with full traceability documents."
André Dupont, Supply Chain Manager

Lo que nos diferencia

Precisión, rapidez y cero defectos: los ingenieros mecánicos confían en DEK cuando el fallo no es una opción.

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6–12h

6–12h Quote

You get an accurate quote within half a day, based on experienced process evaluation, not automated estimates.
98%

98% On-Time Delivery

Our workflow ensures delivery commitments are met, even for large and complex housings.
10+ Y

10+ Years Experience

Your project is handled by engineers with over a decade of experience in programming, materials, and finishing, ensuring your design intent is fully realized.
PREGUNTAS FRECUENTES

Gearbox Housings Preguntas frecuentes

We review your drawings, tolerances, and material before selecting the best machining route. Submit files via cita form.
Housing size, bore tolerances, surface finish requirements, and post-treatments all impact cycle time and fixturing cost.
For simple housings, 7–10 days; complex multi-bore housings, 15–20 days, including CMM inspection.
Yes, CMM verifies coaxiality ≤0.02 mm. Our fixtures are designed for stable alignment during machining.
Standard CMM report, surface roughness data, and thread gauge results. Request full FAI if needed.
Yes, from 1 unit to small batches, ideal for repair or prototype builds.
Commonly cast aluminum, ductile iron, and steel alloys; heat treatment optional.
Custom wood crates with internal bracing to protect bores and flanges during transport.
Yes, but we recommend a 2D drawing for tolerance details. Upload both for faster review.
Yes. All files are protected, and NDAs can be signed on request.

Put Your Gearbox Housings into Production Today

Send us your drawing—we’ll provide fast DFM feedback and a precise quote, no minimum order.

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DEK
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