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GY specializes in manufacturing high-precision crowned rollers ranging from 0.5mm diameter × 1.5mm length to 6mm diameter × 40mm length, with tolerances as tight as 0.001mm. Our rollers are crafted from bearing steel, stainless steel, stainless iron, high-carbon steel, ZOCM, and custom materials to meet the most demanding operational requirements.
Stress-Optimized Design: Logarithmic profile eliminates edge effects, reducing contact stress by 35-45%.
Misalignment Compensation: Tolerates shaft misalignment up to ±0.5° (compared to ±0.2° for standard rollers).
Extended Service Life: Fatigue life reaches 1.5-2.5x that of conventional rollers.
High-Speed Stability: DN value increased to 1.2×10⁶ (vs. 800,000 for standard rollers).
Vibration Control: Acceleration reduced by 60% (from 1.0m/s² to 0.4m/s²).
Friction Optimization: Oil film thickness increased by 200%, lowering temperature rise by 15-20°C.
Wind Turbine Spindles: 80% reduction in micro-pitting risk for 15MW+ turbines.
Machine Tool Spindles: Stable operation at DN values up to 1.5×10⁶.
Industrial Robotics: Repeat positioning accuracy improved to ±0.005mm.
Profile Precision: Superfinishing achieves 0.3μm accuracy (diamond grinding wheels).
Material Selection:
High-End Applications: Silicon nitride ceramic (elastic modulus 310GPa).
General Applications: Ultra-pure bearing steel (oxygen content ≤5ppm).
Quality Control: Laser profilometry with 1000 points/mm sampling density.
Edge spalling rate reduced from 12% to 1.5%.
Cage service life extended by 3x.
Adhesive wear risk decreased by 80%.
| Parameter | Specification |
|---|---|
| Product Name | GY Crowned Roller |
| Materials | Stainless Steel, Stainless Iron, Bearing Steel, Copper, Custom Alloys |
| Hardness | HRC 58-62 |
| Surface Finish | Quenching, Triple Grinding, Superfinishing, Polishing |
| Diameter Tolerance | 0 to -0.01mm (Standard), -0.003 to -0.008mm (High Precision) |