The Bearing Seat Stamping Die is a high-precision tooling solution engineered for the production of critical bearing housings used in automotive chassis, industrial motors, and conveyor systems. At Dongmo Precision, we specialize in the complex metal flow management required to achieve the strict concentricity and dimensional stability that high-performance bearings demand.
| Feature | Engineering Standards |
| Material Capability | Cold Rolled Steel, SAPH440, Stainless Steel 304/316 |
| Material Thickness | 2.0mm – 6.0mm (Heavy-duty capable) |
| Tooling Material | DC53, SKD11, or ASP-23 (High-speed powder steel) |
| Dimensional Tolerance | ±0.015mm on Inner Diameter (ID) |
| Surface Treatment | TD (Thermal Diffusion) Coating / Vanadium Carbide |
| Mould Structure | Multi-station Progressive Die or Transfer Die |
| Guaranteed Life | 1,000,000+ Strokes |
Core Engineering Advantages
1. Advanced Concentricity & Verticality Control
The primary failure point in bearing seat production is axial misalignment. Our dies utilize high-precision ball-bearing guide sets and specialized sizing stations to ensure the sidewalls are perfectly vertical to the flange base.
2. TD-Coated Inserts for Anti-Galling
When stamping thick-gauge bearing seats, metal "pickup" or galling is a common issue. We apply TD Coating to all drawing rings, creating a surface hardness of HV 3000. This allows for high-speed continuous production without surface scratches.
3. FEA-Optimized Springback Compensation
Using AutoForm simulation, we calculate the exact springback coefficient. By incorporating "over-bending" and secondary sizing stages, we ensure the final product meets the H7/H8 tolerance grade straight from the press.
4. Modular Tooling Architecture
To minimize downtime, we design our dies with a modular sub-plate system. High-wear components can be replaced in minutes without removing the entire die set from the press.
Professional FAQ
Q: How do you ensure the roundness of the bearing seat remains stable? A: We incorporate a final sizing/calibration station that uses a cryogenic-treated punch. This stabilizes the metal's internal stress, ensuring the roundness stays within 0.02mm.
Q: Can your dies handle high-strength steels used in automotive chassis? A: Yes. We adjust the die clearance and use ASP-23 (Vanadis) inserts specifically for high-yield materials to prevent edge chipping.
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