High Volume Carbon Steel Bearing Rings GCr15 Bearing Steel 20-50mm
Thickness Precision Batch Cutting
1, Features & Specifications
1. Premium Material Properties
Material: GCr15 (1.3505/52100) Bearing Steel
Chemical Composition: C 0.95-1.05%, Cr 1.30-1.60%, Mn 0.25-0.45%
Hardness: HRC 60-64
Mechanical Performance:
Tensile Strength: ≥2,200 MPa | Fatigue Limit: ≥1,000 MPa (ISO 281
Standard)
Impact Toughness: 15-25 J/cm²
2. Precision Batch Manufacturing
Bulk Cutting Technology: Multi-head abrasive waterjet
Dimensional Accuracy:
Inner/Outer Diameter Tolerance: ±0.05mm
Thickness Tolerance: ±0.1mm (20-50mm range)
Surface Integrity:
Post-cut grinding/polishing to Ra ≤0.4μm
3. Technical Specifications
Size Range:
Inner Diameter: 30mm to 300mm
Thickness: 20mm, 25mm, 30mm, 40mm, 50mm (Customizable)
Batch Capacity: 10,000+ units/month with 15-day lead time.
Standards Compliance: ISO 683-17, ASTM A295, DIN 17230.
2, Advantages
✅ High-Volume Cost Efficiency
Nesting Optimization: AI-driven nesting software reduces material
waste by 25% in bulk cutting.
✅ Wear Resistance & Longevity
GCr15’s chromium-carbide network ensures superior anti-pitting and
rolling contact fatigue resistance.
✅ Thermal Stability
Through-hardening (Quenched in oil at 830-850°C) guarantees uniform
hardness (HRC 60-64) across 20-50mm thickness.
3, Manufacturing Process
| Process Stage | Technical Content |
| 1. Blank Preparation | GCr15 steel plates laser-sliced to near-net thickness. |
| 2. Batch Cutting | Multi-head waterjet/laser cuts 50+ rings per cycle. |
| 3. Heat Treatment | Vacuum quenching + cryogenic tempering (-70℃). |
| 4. Precision Grinding | CNC centerless grinding for ID/OD finishing (±0.05mm). |
| 5. Quality Assurance | 100% hardness mapping (Rockwell C) + ultrasonic flaw detection. |
4, Applications
Automotive: Transmission bearings, wheel hub units.
Wind Energy: Main shaft bearings, pitch/yaw systems.
Heavy Machinery: Mining conveyor rollers, crane slewing rings.
Railway: Axlebox bearings, traction motor assemblies.
5, Certifications & Compliance
IATF 16949 (Automotive), ISO 14001 (Environmental), EN 10204-3.1
Material Certificates.
RoHS/REACH compliant (Hexavalent chromium-free passivation).
CNC无中心磨削的ID/OD饰面(±0.05mm).
