NAS5019ZZNR Roller Bearing for Sheaves, 95 mm ID 145 mm OD 66 mm Width, High-Carbon Steel Heavy Duty Double-Row with Oil-Holed Inner Ring and Shields, Metric Series

Single NAS5019ZZNR roller bearing 95×145×66 mm
✔️ High-carbon steel, double-row, oil-holed inner ring, shielded

Compact heavy-duty roller bearing for sheaves and pulleys, commonly used in cranes, hoists, and conveyor sheave systems. Sold as a single bearing for replacement and maintenance jobs.

✅ Model: NAS5019ZZNR, single bearing
✅ Inner diameter: 95 mm (ID), Outer diameter: 145 mm (OD), Width: 66 mm
✅ Material: High carbon steel, shielded design
✅ Rows: Double-row uncaged heavy-duty
✅ Dynamic load capacity: 312000 N, Static load capacity: 562000 N
✅ Max speed: 1100 rpm, Temperature range: -20 to 120 °C
✅ Oil holes in inner ring for relubrication, open enclosure
✅ Typical uses: sheaves, pulleys, cranes, and conveyor systems

💡 What is a roller bearing for sheaves used for? Roller bearings for sheaves carry heavy radial loads and keep pulleys turning smoothly under rope or belt tension. - Supports heavy radial loading in hoists, cranes, and conveyor sheaves, often preferred over sealed ball bearing designs for sheer load capacity. - Allows relubrication via oil-holed inner rings for extended service life compared with sealed or ceramic options. - Not intended for precision linear slide unit motion; ideal for pulley, sheave, and rope-guiding applications.