The Bearing Seat Stamping Die is a critical component in producing high-precision bearing housings for automotive hubs, electric motors, and industrial machinery. At Dongmo Precision, we specialize in engineering dies that handle the intense deformation required for deep drawing steel into dimensionally stable bearing seats.
Our tooling is designed to manage the high stress of forming carbon steel, stainless steel, or alloy sheets, ensuring that the critical internal diameter (ID) and circularity of the bearing seat remain within micron-level tolerances.
| Feature | Professional Specification |
| Product Name | Bearing Seat Stamping Die / Bearing Housing Die |
| Material | DC53, SKD11, Cr12MoV (Vacuum Heat Treatment) |
| Forming Process | Multi-stage Deep Drawing, Piercing, Trimming |
| Tolerance | ±0.01mm to ±0.03mm for Bearing Fits |
| Mould Life | 800,000 - 1,200,000 Strokes |
| Surface Finish | TD Coating / Mirror Polishing (Ra < 0.4μm) |
| Output Type | Automatic Progressive Die or Transfer Die |
Production Workflow
Blanking: High-precision blanking of the sheet metal coil.
Multi-Stage Drawing: Gradual reduction of the diameter to reach the required bearing seat depth.
Bottom Piercing: Accurate punching of the central hole or mounting holes.
Sizing & Flanging: Final calibration of the ID and forming the mounting flange.
Trimming: Clean removal of excess material to meet final assembly dimensions.
Professional FAQ
Q: How do you ensure the surface quality of the inner bearing race seat? A: We use a combination of mirror polishing (Ra 0.2-0.4) and specialized lubricant grooves in the die design to ensure a flawless surface finish, which is critical for the interference fit of the bearing.
Q: Can you design dies for heavy-duty bearing seats (3mm+ thickness)? A: Yes. For thick-gauge materials, we utilize high-strength alloy die sets and reinforced punch structures to withstand the extreme tonnage required without deforming the mould base.
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