Professional design of Wire Rope Lifting Sheave Pulley
Precision Groove Matching
Profile Design: V or U-shaped groove with curvature radius = rope diameter × (5.5–6) to prevent stress concentration and rope deformation.
Surface Hardness: ≥55 HRC (quenched) to minimize wear rate (<0.1mm/1,000 cycles). Bearing System Heavy-Duty Solution: Double-row tapered roller bearings (40% higher load capacity vs. deep groove ball bearings). Sealing Technology: IP66 rating for dust/water resistance, grease service life >10,000 hours.
Safety Redundancy
Breakage Factor: ≥5:1 (per DIN 15020), ultimate load = nominal load × 5.
Anti-Derailment: Sidewall height ≥1.5× rope diameter, with nylon flanges (150J impact resistance).