Special-Shaped Rollers

Special-Shaped Rollers Product Overview

GY specializes in manufacturing high-precision special-shaped rollers ranging from 0.5mm diameter × 1.5mm length to 6mm diameter × 40mm length, with tolerances as tight as 0.001mm. Crafted from bearing steel, stainless steel, stainless iron, high-carbon steel, ZOCM, and custom materials, our rollers are designed to meet the most demanding operational requirements.

Special-Shaped Rollers Core Advantages

1. Profile Optimization Technology

• Logarithmic Spiral Profile: Eliminates edge stress peaks (15-30% lower contact stress).
• Variable Curvature Crowning: Compensates for shaft deformation under misalignment (50% higher misalignment tolerance).
• Asymmetric End Design: Optimizes rib contact zones (20-40% lower friction torque).

2. Material-Structure Synergy

• Gradient Hardness Heat Treatment: Surface hardness 62-64 HRC with a tough core.
• Composite Coatings: CrN coating with friction coefficient <0.1 and heat resistance up to 800°C.

3. Key Performance Breakthroughs

4. Industry Applications & Value

New Energy:

• Wind turbine main bearings: L10 life >200,000 hours for 10MW+ turbines.
• EV drivetrains: Supports 20,000 rpm operation with 30% better NVH performance.

High-End Equipment:

• 5-axis machine tools: Radial runout <1μm, temperature rise <15K.
• Aircraft engines: Passes 2000-hour endurance tests, DN value >3×10⁶.

Heavy Industry:

• Steel mill rollers: 2.2x higher impact load capacity.
• Tunnel boring machine bearings: 10km service life in muddy environments.

5. Techno-Economic Analysis

• Manufacturing cost: 35-50% higher than standard rollers, but 40-60% lower lifecycle cost.
• Maintenance intervals extended 3x, with 12-18% higher OEE (Overall Equipment Efficiency).

Special-Shaped Rollers Technical Specifications