Gearbox Housing Manufacturer for Reducer, Transmission, and Drive-System RFQs
Bohua supplies aluminum gearbox housings for buyers that need structural casting quality, machined bearing seats, and export-ready support from one China manufacturer.
This landing page targets gearbox housing manufacturer, gearbox housing supplier, OEM gearbox housing, and gearbox housing RFQ searches with a buyer-first path built around inquiry intent, not just traffic.
Quick answer for buyers
Bohua supports aluminum gearbox and reducer housing RFQs where bearing seats, machining datums, wall thickness, heat treatment, and dimensional inspection must be planned together with the casting route. Send drawings, datum strategy, and post-T6 dimensional requirements for review before tooling.
Buyer facts
| Location | Ningbo, Zhejiang, China |
|---|---|
| Process options | Gravity casting most common; low-pressure for selected structural housings |
| Common alloys | A356-T6 for structural housings needing T6 dimensional stability |
| Secondary operations | CNC machining of bearing seats, datums, mounting faces; CMM dimensional inspection |
| RFQ inputs | 2D + 3D drawings, bearing/seal callouts, datum strategy, alloy, T6 stability requirements, annual volume |
Why buyers land here
Commercial path from supplier search to inquiry
Industrial gearbox housings, reducer cases, power transmission housings, gearbox casings, and structural drive-system castings
Buyer CTA
Need a gearbox housing quote?
Send your reducer or transmission housing drawing, machining scope, and demand forecast through the RFQ form for an OEM review.
• Share 2D/3D files, annual demand, alloy target, and machining scope
• Add leak, bearing, sealing, or coating requirements where relevant
• Bohua reviews OEM, supplier, and export-ready assumptions before tooling
Core selling points
What procurement teams usually need to verify
Bearing-seat and datum control
We focus on the features that actually drive assembly yield, concentricity, and service life.
Heat-treatment aware planning
Gearbox housings often need T6 response and machining stability, so the process route is reviewed before tooling launch.
Closer to procurement decisions
This page is meant to turn reducer and drive-system sourcing intent into a direct RFQ path.
Comparison intent
How buyers usually compare China suppliers before RFQ
Bearing seat control
Bohua approach
Quote review focuses on bearing seat location, cover-face stability, and post-T6 machining datum strategy.
Typical market gap
Supplier says it can machine bores but does not explain how datum control survives heat treatment.
China supplier comparison
Bohua approach
OEM buyers can compare structural casting, T6 route, machining scope, and export readiness in one page.
Typical market gap
Comparison is limited to tooling price and sample lead time without assembly-risk discussion.
Program handoff
Bohua approach
Reducer housing RFQs connect directly from drawing review to tooling, sample correction, and serial delivery planning.
Typical market gap
Engineering, tooling, and commercial assumptions are split across different conversations.
RFQ route matrix
Choose the quote path that matches this sourcing project
Buyers who land here from commercial sourcing searches usually need different next steps. Pick the route that matches the drawing status, application risk, supplier-change goal, or approval-document blocker.
Gearbox housing OEM quote
Use this route when the buyer has a drawing and needs bearing seats, bores, cover faces, T6 stability, tooling, MOQ, and machining datums reviewed together.
Send these inputs
PDF + STEP, bearing-seat and bore tolerances, datum scheme, alloy/T6 target, machining scope, CMM or gauge expectations, pilot quantity, annual demand, destination, and Incoterm.
Second-source or transfer-tool review
Use this route when the program already exists and the buyer needs backup supply, duplicate tooling, transfer-tool feasibility, sample validation, or allocation-risk review.
Send these inputs
Current supplier risk, existing tool ownership, transfer or duplicate-tool status, drawing revision, validation records, pilot quantity, approval path, and confidentiality limits.
Quality-documentation and CMM route
Use this route when supplier approval depends on bearing-seat CMM records, FAI/PPAP, material certificates, traceability format, or T6 dimensional evidence before price comparison.
Send these inputs
Critical feature list, CMM report format, bore/runout/flatness requirements, FAI or PPAP scope, material and heat-treatment records, traceability needs, and record-retention expectations.
RFQ micro-conversion
Send a gearbox housing RFQ with bearing-seat and T6 context upfront
For gearbox and reducer housings, the useful RFQ is the one that makes datum strategy, T6 stability, and assembly-critical bores visible before tooling is quoted. This block is built for that job.
Fastest RFQ path
Pre-filled RFQ route to /request-quote
Open a pre-filled RFQ draft with drawing/spec, material, MOQ, tooling, lead time, testing, and contact-path prompts already staged in the form.
RFQ checklist
What to send if you want a serious quotation
• 3D + 2D drawing with bearing seats, cover faces, sealing lands, and machining datums
• A356-T6 or other alloy target plus any heat-treatment and dimensional stability requirement
• Critical tolerances for concentricity, flatness, position, and assembly interfaces
• Annual demand, OEM quote target, and prototype-to-volume launch timing
• Inspection package, packaging method, and export documentation required by the program
Pricing / MOQ / lead time / tooling / testing
Commercial questions procurement teams ask before supplier approval
| Pricing logic | Pricing is driven by wall-section complexity, T6 route, bearing-seat machining, datum strategy, and expected annual volume. |
|---|---|
| MOQ | MOQ depends on housing size, tooling cost recovery, machining fixture count, and whether the project starts with samples or serial demand. |
| Lead time | Lead time should include tooling, T1 sampling, T6 heat treatment, bore/face machining validation, and correction loop. |
| Tooling | Tooling review focuses on hot spots, wall balance, machining allowance, and features affecting bearing-seat stability after T6. |
| Testing intent | Typical validation includes CMM, bearing-seat and datum checks, plus assembly-related flatness and concentricity review. |
Deeper quote intent
Go deeper on OEM quote, China supplier comparison, MOQ, tooling, and lead time
Gearbox housing OEM quote guide
Commercial path for bearing seats, T6, machining datums, tooling, and SOP timing.
Open quote intent page →Second-source and transfer-tool RFQ
Use when the gearbox housing program needs backup supply, duplicate tooling, or transfer-tool feasibility review.
Open quote intent page →China supplier comparison
Compare structural-casting suppliers on assembly risk, not just piece price.
Open quote intent page →MOQ, tooling, and lead time
Use this page when gearbox programs need a credible quote and launch plan.
Open quote intent page →Typical product entry
Go deeper into matching product pages
Aluminum gearbox housing manufacturer page
China gearbox housing page for OEM drive-system sourcing.
View product →OEM gearbox housing supplier page
Industrial reducer housing example with T6 and machining workflow.
View product →Structural housing product page
Adjacent structural housing option for wider drive-system RFQs.
View product →EV drive-unit housing example
Relevant when gearbox and e-drive programs overlap.
View product →Article to landing to RFQ
Related sourcing articles
Gearbox bearing-seat inspection RFQ package
Use this article path for comparison research, then return here for product examples, deeper quote intent, and RFQ submission.
Read article →Reducer housing T6 and datum RFQ checklist
Use this article path for comparison research, then return here for product examples, deeper quote intent, and RFQ submission.
Read article →Gearbox second-source and transfer-tool checklist
Use this article path for comparison research, then return here for product examples, deeper quote intent, and RFQ submission.
Read article →Gearbox housing manufacturer and supplier guide
Use this article path for comparison research, then return here for product examples, deeper quote intent, and RFQ submission.
Read article →Motor housing sourcing guide for adjacent programs
Use this article path for comparison research, then return here for product examples, deeper quote intent, and RFQ submission.
Read article →Gravity casting process guide
Use this article path for comparison research, then return here for product examples, deeper quote intent, and RFQ submission.
Read article →FAQ
Questions buyers usually ask before contacting a manufacturer
What matters most in a gearbox housing RFQ?
The most important inputs are the bearing and seal features, machining datum strategy, alloy target, annual demand, and any post-heat-treatment dimensional requirements.
Is A356-T6 common for gearbox housings?
Yes. It is widely used when the program needs a heat-treatable alloy, structural integrity, and stable CNC finishing after gravity casting.
Should gearbox housings be machined in-house by the supplier?
That is usually a strong advantage because datum strategy, sample correction, and serial quality feedback stay inside one workflow.
When should reducer housing buyers discuss T6 distortion risk?
Discuss it before quotation when bearing seats, cover faces, gasket faces, and datums must remain stable after heat treatment and finish machining.
Can gearbox housing programs be reviewed as second-source projects?
Yes. If the buyer is qualifying backup supply, duplicate tooling, transfer tooling, or sample validation against an existing assembly, the RFQ should include tooling status and approval-record requirements.
Related sourcing categories
Explore other high-intent casting categories
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A356/ZL114 pump housings with OEM RFQ support, CNC datums, sealing faces, and leak-test scope review.
View sourcing page →Valve Body Manufacturer
Hydraulic and flow-control valve bodies with machined ports and RFQ-defined pressure or leak-test planning.
View sourcing page →EV Motor Housing Manufacturer
EV motor housings, end bells, and e-drive enclosures for structural casting programs.
View sourcing page →Second-Source Casting Supplier
Qualification as an alternative supplier for existing casting programs to reduce supply chain risk.
View sourcing page →Leak-Test Aluminum Casting
Pressure-sensitive castings with buyer-defined leak-test planning, porosity-risk review, and sealing-face management.
View sourcing page →Ready to move from supplier search to a real RFQ?
Send your drawings, machining notes, annual usage, and delivery target. Bohua will review the project as a manufacturer and supplier, not just a catalog page.