NSK NU 2214 ET 70x125x31 Single‑Row Cylindrical Roller Bearing - High Load NU Design

NSK NU 2214 ET 70x125x31 Single‑Row Cylindrical Roller Bearing - High Load NU Design

The NSK NU 2214 ET is a single‑row cylindrical roller bearing featuring the NU design, equipped with dual integral flanges on the outer ring and no flanges on the inner ring—allowing axial displacement in both directions. Measuring 70 mm x 125 mm x 31 mm, this robust bearing is engineered for exceptional radial load capacity and high-speed performance. The ET suffix indicates a glass-fiber reinforced polyamide cage, offering lightweight durability and temperature resistance.

This separable design facilitates straightforward mounting and interchangeability of components—a major advantage in B2B and industrial applications.

✅ Key Features:

• Model / Design: NU 2214 ET (NU design allows axial float in both directions; outer flanges only)

• Dimensions: Bore = 70 mm, Outer = 125 mm, Width = 31 mm

• Load Ratings: Basic dynamic ~191 kN, Static ~194 kN

• Speed Limits: Grease up to ~4,500 rpm; Oil-bath ~5,600 rpm; Forced circulation oil up to ~6,700 rpm

• Cage Material: Polyamide resin reinforced with glass fiber (ET series) — lightweight, wear- and heat-resistant

• Internal Clearance: Standard (CN) with precision tolerance options

• Operating Temp.: -20 °C to +120 °C

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❓ FAQ - Frequently Asked Questions

What does “NU design” mean?
It has two integral flanges on the outer ring and no flanges on the inner ring, enabling axial movement of the shaft in both directions.

Why is the ET cage important?
The ET cage is made from glass-fiber reinforced polyamide—a lightweight, robust material ideal for high-speed and high-temperature environments.

What are typical applications of NU 2214 ET?
Used in heavy machinery, industrial gearboxes, electric motors, wind turbines, rolling mills, or any equipment requiring high radial load capability with axial float.

How fast can this bearing operate?
Grease: ~4,500 rpm; oil-bath: ~5,600 rpm; forced lubrication: up to ~6,700 rpm, depending on lubrication and clearance.

🎯 Applications & Benefits

• ✅ High radial capacity for industrial and mechanical use

• ✅ Axial displacement compensation—reduces stress from misalignment

• ✅ Separable construction simplifies mounting and service

• ✅ Durable ET cage—optimizes performance under heat and speed

• ✅ Versatile compatibility across equipment thanks to standard sizing