CNC Machining Engine Transmission Bell Housing Product Overview
The Original Brand New CVT RE0F10A JF011E Transmission Bell Housing for the 2.4 L F1CJA engine is now available as a precision‑engineered CNC‑machined component from GreatLight CNC Machining Center. This Transmission Bell Housing is the critical enclosure that integrates the continuously variable transmission (CVT) with the engine, ensuring optimal torque transfer, vibration dampening, and protection of internal gears. Our state‑of‑the‑art 5‑axis CNC centers, combined with rigorous ISO‑9001:2015 quality controls, deliver a part that meets OEM specifications and exceeds customer expectations for durability, dimensional accuracy, and surface finish.
Key Advantages & Selling Points
- Ultra‑high precision – tolerance of ±0.001 mm on critical dimensions, guaranteeing perfect mating with the engine block and transmission shafts.
- 5‑axis CNC capability – complex curved surfaces and internal cavities are machined in a single setup, reducing deformation and eliminating the need for secondary operations.
- Material integrity – forged aluminum alloy (AA7075‑T6) or high‑strength steel (AISI 4140) options, heat‑treated to meet OEM mechanical property requirements.
- Rapid prototyping & low‑volume production – from 1‑piece samples to 10 k+ units, lead times as short as 7 days for standard orders.
- Comprehensive after‑sales service – from design validation, tooling advice, to on‑site technical support, ensuring a seamless collaboration throughout the product lifecycle.
Suitable Applications
- OEM replacement for 2.4 L F1CJA engine platforms (e.g., compact SUVs, mid‑size sedans).
- After‑market upgrades – performance‑oriented rebuilds, race‑car conversions, and custom tuning projects.
- Hybrid‑CVT integration – compatible with both traditional CVT units and emerging e‑CVT modules.
- Prototype development – engineering labs and R&D centers requiring fast iteration cycles.
Quality & Accuracy
GreatLight’s precision CNC machining process is built around three pillars:
- Dimensional Control – Multi‑axis probing after each machining pass verifies every critical datum within the ±0.001 mm tolerance envelope.
- Surface Integrity – Ra ≤ 0.4 µm on sealing surfaces, with optional anodizing or PVD coating for corrosion resistance.
- Mechanical Consistency – Batch‑wise hardness testing (Rockwell B ≥ 95) and tensile strength verification (≥ 570 MPa for AA7075‑T6) ensure uniform load‑bearing capacity.
All inspections are recorded in a digital traceability system, providing the customer with a complete Quality Assurance Report (QAR) for each production lot.
Parameter Table
| Parameter | Specification (Standard) | Tolerance / Notes |
|---|---|---|
| Overall Length (A) | 215.30 mm | ±0.001 mm |
| Width (B) | 145.80 mm | ±0.001 mm |
| Height (C) | 120.45 mm | ±0.001 mm |
| Mounting Bolt Circle Diameter (D) | 98.00 mm | ±0.001 mm |
| Gearbox Input Shaft Bore (E) | 32.00 mm | ±0.001 mm |
| Oil Passage Diameter (F) | 8.50 mm | ±0.001 mm |
| Weight (Aluminum) | 2.85 kg | – |
| Weight (Steel) | 4.30 kg | – |
| Surface Roughness (Ra) | ≤ 0.4 µm | Measured after final finishing |
| Hardness (Aluminum – T6) | 150 HB | Rockwell B ≈ 95 |
| Hardness (Steel – 4140) | 280 HB | Rockwell C ≈ 32 |
All dimensions are taken from the OEM drawing of the Transmission Bell Housing. Custom dimensions can be accommodated upon request.
Material Properties Table
| Material | Chemical Composition (wt %) | Mechanical Properties | Heat‑Treatment | Typical Applications |
|---|---|---|---|---|
| AA7075‑T6 (Aluminum) | Al ≈ 87.5, Zn ≈ 5.6, Mg ≈ 2.5, Cu ≈ 2.0, others ≤ 0.5 | Tensile ≥ 570 MPa, Yield ≥ 503 MPa, Elongation ≥ 11 % | Solution heat‑treat + artificial aging | High‑strength aerospace, performance automotive parts |
| AISI 4140 (Steel) | C ≈ 0.40, Cr ≈ 0.80, Mo ≈ 0.25, Mn ≈ 0.75, Si ≈ 0.25 | Tensile ≥ 655 MPa, Yield ≥ 460 MPa, Hardness ≈ 280 HB | Quench‑tempered (HRC ≈ 32) | Heavy‑duty transmission housings, gearboxes |
Material selection is determined by the end‑user’s performance requirements, cost considerations, and operating environment.
Machining Instructions
- Raw Material Inspection – Verify material certificates, check for internal defects using ultrasonic C‑scan.
- Roughing Operation – 5‑axis CNC milling with high‑speed carbide end‑mills; take‑away ≤ 75 % of stock to minimize tool wear.
- Semi‑Finishing – Use ball‑nose tools for curved interior surfaces; maintain a constant spindle speed of 8 000 rpm for aluminum, 5 000 rpm for steel.
- Final Pass & Surface Finish – Employ a 0.2 mm diameter diamond tool for critical sealing surfaces; apply a light mist of cutting fluid to achieve Ra ≤ 0.4 µm.
- Heat Treatment (if steel) – Transfer to a controlled furnace; austenitize at 845 °C, quench in oil, temper at 540 °C for 2 h.
- Anodizing / Coating (optional) – For aluminum, a Type III hard anodize (50 µm) is recommended; for steel, a PVD TiN coating enhances wear resistance.
- Dimensional Verification – CMM probing of all critical datums; generate a GD&T compliance report.
- Final Cleaning – Ultrasonic cleaning in isopropanol, followed by nitrogen blow‑dry.
All steps are performed under ISO‑9001:2015 controlled conditions, with logged operator signatures for traceability.
Custom Guide – How to Order a Transmission Bell Housing
- Provide CAD Model – STEP, IGES, or SolidWorks files with clear assembly constraints.
- Select Material & Finish – Choose between AA7075‑T6 (aluminum) or AISI 4140 (steel) and indicate any surface treatments (anodizing, PVD, plating).
- Specify Tolerances – While the standard tolerance is ±0.001 mm, tighter tolerances (±0.0005 mm) are available for an additional fee.
- Quantity & Delivery – Indicate required unit count and preferred delivery schedule (standard 15‑day lead time; express 7‑day for up to 500 pcs).
- Request a Quote – Our sales team will generate a detailed quotation, including tooling, machining, finishing, and logistics.
- Prototype Confirmation – For first‑time projects, a single prototype is machined, inspected, and shipped for evaluation before full‑scale production.
GreatLight’s engineering team will assist throughout the design‑for‑manufacture (DFM) stage to optimize wall thickness, rib placement, and coolant channels, reducing cost and cycle time.
Price Advantage
- Competitive Unit Cost – By leveraging high‑volume CNC capacity and strategic material sourcing, we can offer a 15 %–25 % lower price than typical OEM aftermarket suppliers.
- No Hidden Fees – All tooling, setup, and inspection costs are bundled in the quotation; optional services (coating, packaging) are clearly itemized.
- Volume Discounts – Orders > 5 000 pcs receive an additional 5 % reduction; for long‑term supply contracts (≥ 12 months), a 10 % discount is applied.
Our cost‑efficiency stems from a lean production line, automated quality checks, and a stable supply chain that minimizes material price fluctuations.
Delivery Cycle & On‑Time Performance
- Standard Lead Time – 15 working days from order confirmation (including material procurement, machining, heat treatment, and final inspection).
- Express Lead Time – 7 working days for orders ≤ 500 pcs (stock‑ready material, dedicated CNC slots).
- On‑Time Delivery Rate – Consistently 98 % on‑time performance over the past 24 months, verified by carrier tracking records.
- Logistics Options – Air freight (express), sea freight (economical), or DDP (Delivered Duty Paid) to major global ports.
Our logistics team coordinates with reputable freight forwarders to ensure customs clearance and real‑time shipment tracking.
Communication Efficiency & Technical Support
- Dedicated Account Manager – Single point of contact for order status, technical queries, and after‑sales service.
- 24/7 WhatsApp/WeChat Hotline – Immediate response within 1 hour for urgent issues.
- Technical Portal – Secure online platform for CAD file exchange, inspection reports, and production progress dashboards.
- On‑Site Visits – Capability to host client engineers at our Guangzhou facility for process audits or joint testing.
Our engineers are fluent in English, Mandarin, and German, ensuring clear and accurate communication across borders.
Technical Capabilities & Equipment
- 5‑Axis CNC Machining Centers – DMG‑Mori Seiki NLX 2500, Mazak Integrex i‑500, each with spindle power ≥ 30 kW.
- 4‑Axis CNC Lathes – Haas ST‑30, capable of turning large‑diameter flanges and deep‑groove threads.
- Heat‑Treatment Furnaces – Controlled atmosphere for precise quench‑tempering cycles.
- Surface Treatment Lines – Hard anodizing (up to 80 µm), PVD TiN, and laser marking stations.
- Metrology Suite – Zeiss CMM with 0.001 mm repeatability, laser scanners for complex free‑form surfaces, and optical profilometers for surface roughness analysis.
The integration of CNC, heat‑treatment, and metrology enables us to deliver a fully finished Transmission Bell Housing in a single, streamlined workflow.
Quality Control System & Certification
- ISO 9001:2015 – Comprehensive quality management covering design, procurement, production, and post‑sale.
- IATF 16949 (optional) – Available for automotive OEM customers requiring additional automotive quality standards.
- GD&T Compliance – All drawings are interpreted and verified according to ASME Y14.5 standards.
- Inspection Protocol – 100 % CMM inspection for critical dimensions, statistical process control (SPC) for machining parameters, and batch‑wise non‑destructive testing (NDT) for material integrity.
- Certification Documents – Material Test Reports (MTR), Heat Treatment Certificates, Coating Thickness Reports, and Final Acceptance Test (FAT) certificates are provided with each shipment.
Our QC team performs a “Zero Defect” audit on each lot before release, ensuring that every Transmission Bell Housing meets or exceeds the OEM specifications.
Confidentiality & Intellectual Property Protection
- NDA Signing – All customers are required to sign a mutual Non‑Disclosure Agreement before any CAD data exchange.
- Data Encryption – Files transferred via AES‑256 encrypted channels; stored on isolated servers with restricted access.
- IP Ownership – Design rights remain with the customer; GreatLight only obtains a limited license to produce the parts.
- Secure Facility – Access‑controlled machining floors, CCTV monitoring, and visitor logs to safeguard proprietary designs.
We understand the sensitivity of automotive IP and commit to absolute confidentiality throughout the partnership.
Supply Chain Stability & Risk Management
- Strategic Material Partnerships – Long‑term contracts with primary aluminum and steel suppliers in China, Japan, and Europe, ensuring price stability and consistent quality.
- Dual‑Sourcing Policy – Critical raw materials are sourced from at least two certified vendors to mitigate disruption risk.
- Inventory Buffers – Safety stock of raw billets and finished‑goods to absorb short‑term demand spikes or logistics delays.
- Contingency Planning – Alternate production lines and backup CNC equipment ready for rapid re‑allocation in case of equipment downtime.
- Environmental Compliance – All processes meet RoHS and REACH regulations, reducing regulatory exposure.
Our robust supply chain framework guarantees uninterrupted production and reliable delivery timelines, even under global market fluctuations.
Why Choose GreatLight for Your Transmission Bell Housing?
- Precision at the Core – Tolerances that align with OEM standards, backed by world‑class metrology.
- Full‑Service Capability – From raw material selection to final packaging, we manage the entire value chain.
- Cost‑Effective Scaling – Competitive unit pricing with transparent discounts for high‑volume orders.
- Speed & Flexibility – Rapid prototyping, short lead times, and the ability to adapt designs on the fly.
- Trusted Partner – Proven track record with automotive manufacturers, high‑performance aftermarket brands, and racing teams worldwide.
Partner with GreatLight CNC Machining Center and experience a seamless blend of engineering excellence, manufacturing agility, and unwavering quality.
Contact Us
GreatLight CNC Machining Center
Phone (WhatsApp): +86 180 2756 7310
Email: rich@glcncmachining.com
Website: www.glcncmachining.com
Our team is ready to discuss your specific requirements, provide a free engineering review, and issue a detailed quotation within 24 hours.

































































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