NAS5016ZZNR single roller bearing for sheaves, heavy-duty shielded two-row roller for sheave and pulley applications, 80 mm ID x 125 mm OD x 59 mm, high-carbon steel with oil hole, 1300 rpm

Single NAS5016ZZNR shielded roller bearing, 80×125×59 mm
✔️ Two-row shielded bearing, oil hole, 251000 N dyn, -20 to 120°C

This single heavy-duty NAS5016ZZNR two-row roller bearing is designed for sheave and pulley systems in cranes, winches, hoists and cable routing gear. It gives high radial load capacity and reliable lubrication for demanding rotating guides.

✅ Model: NAS5016ZZNR
✅ Dimensions: 80 mm ID x 125 mm OD x 59 mm width
✅ Material: high-carbon steel, shielded design with oil hole
✅ Configuration: two-row, heavy-duty uncaged type
✅ Dynamic load capacity: 251000 N; static capacity: 428000 N
✅ Max speed 1300 rpm; temperature range -20 to 120 °C
✅ Weight: 5.83 lb; NAS metric series; single bearing unit
✅ Typical uses: sheaves, pulleys, winches, cable guides

💡 What is a two-row roller bearing used for in industrial sheave and pulley systems? Two-row roller bearings handle higher radial loads and keep sheaves turning smoothly in heavy cable-handling and lifting gear. Quick pointer for selection: - Offers greater radial capacity than single-row bearings for pulleys and sheaves - Shielded and oil-hole designs help retain lubrication under heavy duty cycles - Often chosen over sealed ball bearing or linear slide unit when radial load and misalignment tolerance matter