Introduction
At Dalian JinYu HuaYang Industry Co., Ltd, we engineer bearings through a rigorous 8-stage process, combining advanced metallurgy and smart manufacturing. From raw steel selection to final packaging, every step ensures ISO 15243-certified quality. Below, we visualize our production flow with key stages and technologies.
1. Raw Material Preparation
Process:
- Material Selection: High-grade alloy steel (e.g., AISI 52100) tested for carbon content and impurities. Our Bearing Steel Procurement Sources
- Cutting: Steel rods are cut to precise lengths using CNC saws.
2. Forging
Process:
- Heating: Billets heated to 1,100–1,200°C in induction furnaces.
- Shaping: Hydraulic presses mold steel into ring blanks.
- Cooling: Controlled air cooling to eliminate internal stresses.
3. Bainitic Quenching
Process:
- Austenitizing: Steel heated to 850°C in salt baths.
- Bainite Formation: Rapid oil cooling creates a tough, wear-resistant microstructure.
- Tempering: Stabilizes bainite at 180°C for 2 hours.
4. Grinding
Process:
- Rough Grinding: Cylindrical grinders shape outer/inner diameters.
- Precision Grinding: Diamond wheels finish raceways with ±0.005mm tolerance.
5. Component Machining
Process:
- Cage Production: Stamped or machined brass/steel retainers.
- Roller Fabrication: Precision-turned balls or rollers.
6. Assembly
Process:
- Cleaning: Ultrasonic degreasing in alkaline solution.
- Lubrication: Grease injection to specified fill levels.
- Final Assembly: Rollers, cages, and races aligned via CNC fixtures.
Bearing assembly process
7. Quality Inspection
Process:
- Dimensional Checks: Laser micrometers verify tolerances.
- Rotation Test: Spin at 20,000 RPM to detect imbalance.
- Load Testing: Simulate operational stress for 500,000 cycles.
8. Packaging & Storage
Process:
- Anti-Rust Treatment: VCI paper + desiccant packets.
- Sealing: Vacuum-packed in UV-resistant film.
Brearing Packaging & Storage
Conclusion
Dalian JinYu HuaYang Bearing’s 8-step process combines material science, precision machining, and rigorous QA to deliver bearings exceeding ISO 9001 standards. From smart quenching systems to automated assembly lines, every stage ensures reliability for industries like aerospace and wind energy.