Q355B Heavy Duty Crane Sheave for Φ45mm Wire Rope, OD1630

1.Product Description

This large-size crane sheave is CNC machined from Q355B high strength low alloy steel. The rope groove is engineered for Φ45 mm wire rope, with R24 groove radius and 28° groove opening. It permits a 0.5° side deflection for wire rope entering and exiting the sheave, and is designed to fit NNF5032ADA-2LSV bearing. Smooth blended radii reduce stress concentration. It is a critical guiding component for offshore cranes, drilling winches and marine deck lifting equipment. Custom manufacturing per drawing is available.

2.Product Parameter

3.Product Advantage

1. Optimized groove profile: R24 + 28° throat perfectly fits Φ45mm rope; 0.5° side deflection tolerance prevents rope crushing and premature wire breakage
2. Heavy-duty Q355B steel provides outstanding impact toughness and fatigue resistance for cyclic offshore & oilfield loads
3. Accurate bearing seat ensures good fit with NNF5032 double row full complement roller bearing for stable rotation and high load capacity
4. Smooth transition fillets eliminate stress hotspots and extend service life under repeated lifting
5. Flexible upgrade options: groove hardening, Q355D low-temperature steel variant, custom dimensions & groove forms

4.Product Application

Used for offshore platform cranes, logging winches, marine deck winches, land drilling rigs, heavy port cranes and wire rope reeving systems. Widely applied in oil & gas, offshore, shipbuilding and heavy lifting industries.