Product Brief (Introduction Paragraphs)
In high-volume metal forming, the integrity of a bearing seat dictates the operational lifespan of the entire rotating assembly. The Bearing Seat Stamping Die presented here is a cold-forming tool engineered specifically for the rapid, repeatable production of bearing housings. Designed for industries ranging from electric vehicle (EV) drivetrains to heavy-duty bulk conveyors, this custom die transforms sheet metal blanks into assembly-ready bearing seats with tight dimensional control. Unlike casting or machining, stamping offers a distinct cost advantage in high-volume runs while maintaining the structural consistency required for pressed-steel bearing housings.
This is not an off-the-shelf catalog item. Each die set is built directly from your part geometry and material specification. The tooling is configured to accommodate specific material springback allowances, blank holder pressures, and knockout timing sequences unique to your component. By integrating hardened guide components, replaceable insert sections, and a positive mechanical ejection system, the die ensures stable, uninterrupted production across millions of press cycles.
Core Value Summary
| Feature | Engineering Detail | Operational Benefit |
|---|---|---|
| Application-Specific Engineering | Die geometry, cutting clearance, and forming stations derived from customer 3D/2D part data | No generic tooling compromise; parts meet print tolerances from first article inspection |
| High-Cycle Durability | Core inserts fabricated from Cr12MoV, DC53, or SKD11 tool steel; vacuum heat treated to 58-62 HRC | Extended service intervals between regrinds; consistent part quality across long production runs |
| Guided Alignment System | Precision-ground SUJ2 guide pins and bronze-plated bushings with controlled sliding clearance | Maintains punch-to-die concentricity under off-center loading conditions |
| Jam-Free Part Release | Mechanical knockout rod actuated through lower die shoe and punch retainer plate | Eliminates part sticking and reduces unplanned downtime for die cleaning |
| Modular Construction | Individual punch inserts, stripper plates, and die buttons are replaceable without scrapping entire die set | Lower total cost of ownership; allows for quick changeover and incremental upgrades |
Technical Specifications – Table 1: General Die Parameters
| Parameter | Specification |
|---|---|
| Product Name | Bearing Seat Stamping Die |
| Die Classification | Cold Stamping Die (Sheet Metal Forming) |
| Process Configuration | Single-Operation Die / Progressive Die |
| Core Manufacturing Methods | CNC Milling, Wire EDM (Sodick), Surface Grinding |
| Template Flatness Standard | ±0.005 mm (post-grinding inspection) |
| Guide Component Standard | MISUMI / DME Interchangeable |
| Part Inspection Protocol | CMM (Coordinate Measuring Machine) and 3-Axis NC Measurement |
| After-Sales Support | Remote Commissioning Guidance |
| Export Packaging | PE Film Wrap + Fumigation-Free Plywood Case |
| Production Capacity | 1,000 Custom Die Sets Annually |
| Country of Origin | Hebei, China |
Technical Specifications – Table 2: Material & Heat Treatment Data
| Component | Material Designation | Typical Hardness | Remarks |
|---|---|---|---|
| Punch Insert & Die Button | Cr12MoV / DC53 / SKD11 | 58 – 62 HRC | Optimized for high-wear blanking and forming edges; secondary tempering applied for dimensional stability |
| Upper & Lower Die Shoes | S45C / Q235 Mild Steel | 28 – 32 HRC | Stress-relieved prior to machining to minimize distortion under press tonnage |
| Guide Pins & Bushings | SUJ2 / GCr15 Bearing Steel | 60 – 64 HRC | Precision-honed bores ensure smooth slide action and minimal lateral play |
| Stripper Plate | Cr12MoV | 58 – 60 HRC | Heat-treated insert with adjustable stop blocks to accommodate material thickness variation |
| Fasteners & Springs | ISO Standard / JIS Standard | N/A | Globally sourced standard components for ease of maintenance |
Technical Specifications – Table 3: Performance & Operational Limits
| Performance Metric | Value / Range |
|---|---|
| Monthly Throughput Capacity | 2 – 3 Million Parts (Single Die Set) |
| Achievable Part Tolerance | ±0.01 mm (Feature Dependent) |
| Typical Die Service Life | 500,000 – 2,000,000 Strokes (Application Dependent) |
| Compatible Sheet Materials | Cold Rolled Steel (SPCC/SPHC), Stainless Steel (SUS304/316), Aluminum Alloys, Copper, Q235 |
| Material Thickness Range | 0.5 mm – 6.0 mm |
| Press Compatibility | Mechanical Stamping Press (60T – 400T) / Hydraulic Press |
| New Tooling Lead Time | 30 – 45 Working Days (Post Drawing Approval) |
Technical Specifications – Table 4: Quality Assurance & Manufacturing Capabilities
| Category | Description |
|---|---|
| Primary Machining Assets | 5-Axis CNC Machining Center, High-Speed Wire EDM, Jig Grinding Machine, Large-Format Surface Grinder |
| Quality System | ISO 9001:2015 Certified Manufacturing Facility |
| Inspection Equipment | Bridge CMM, Surface Roughness Tester, Digital Hardness Tester, Optical Comparator |
| Documentation Package | 3D CAD Model (STEP/IGES), 2D Assembly Drawing (PDF/DWG), Material Mill Certificates, First Article Inspection Report |
| Customization Scope | OEM / ODM – Full engineering support from blank development to strip layout design |
Manufacturing Process & Quality Control Narrative
Tool Build Sequence:
Design for Manufacturability (DFM) Review: Upon receipt of your part print, our engineering team conducts a forming simulation and clearance analysis. We identify potential issues such as excessive burr formation, material thinning at radii, or slug pulling tendencies before steel is cut.
Material Sourcing: Tool steel procurement is restricted to certified mill sources. Heat lot numbers are logged and traceable to final die assembly.
Core Machining: Die shoes and cavity blocks undergo rough machining followed by stress relief. Precision grinding achieves template flatness within ±0.005 mm.
Cutting Edge Fabrication: Punch and die profiles are wire-cut using multiple skim passes to minimize recast layer and ensure sharp, burr-free shearing edges.
Thermal Processing: Components are vacuum heat treated with controlled atmosphere to prevent decarburization. Post-heat treatment tempering cycles stabilize the microstructure for long-term dimensional integrity.
Assembly & Bench Fitting: Guide pin alignment is verified via indicator sweep. Die clearance is checked using lead wire or feeler gauge methods.
In-Press Tryout: Every die is cycled in a production press using customer-specified material or a designated equivalent. Sample parts are fully dimensionally inspected.
Preservation & Crating: Finished die is coated with long-term rust preventative, sealed in VCI film, and secured in a fumigation-ready export crate.
Quality Commitment:
We stand behind the workmanship of every die. A one-year warranty covers manufacturing defects in materials and assembly. Additionally, we provide remote technical support during your initial production ramp-up to ensure the tooling integrates seamlessly with your press line.
Industry Applications
| Industry Sector | Specific Application Examples |
|---|---|
| Automotive & EV | Stamped bearing housings for electric power steering (EPS) motors, seat adjusters, and chassis pivot points |
| Conveyor Systems | Roller bearing seats for bulk handling idlers and pulley assemblies |
| Agricultural Machinery | Housings for planter gauge wheels and harvester reel bearings |
| Home Appliances | Drum support brackets for washing machines and dryers |
| Construction Equipment | Heavy-duty stamped seats for pivot bearings in loader linkages |
Frequently Asked Questions (FAQ)
Q: How is the die protected during ocean freight?
A: The die is wrapped in anti-rust VCI film and secured inside a plywood crate that meets ISPM 15 fumigation standards. Custom crating is available upon request.
Q: What is the procedure to obtain a quotation?
A: Please submit your part drawing (2D PDF or 3D STEP/IGES file) along with estimated annual volume. Our engineering team will provide a formal quotation within 24 business hours.
Q: Can you support new product development with prototypes?
A: Yes. We can produce soft tooling or utilize our in-house press for prototype runs before committing to full production hard tooling.
Q: Is this die fully customizable?
A: Absolutely. This is a build-to-print product. Every aspect-from die clearance to shut height-is configured based on your specific component requirements.
Q: What warranty applies to the stamping die?
A: A 12-month warranty from the date of shipment covers defects in material and workmanship under normal operating conditions.
Q: What materials can this tool process?
A: The die is capable of forming cold rolled steel, stainless steel, aluminum, copper, and Q235 structural steel, with thicknesses ranging from 0.5 mm up to 6.0 mm.
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