NSK NU211ETC3

NSK NU211ETC3 Cylindrical Roller Bearing

Description

The NSK NU211ETC3 is a high-performance single-row cylindrical roller bearing designed for applications demanding high radial load capacity and high rotational speeds. This bearing features a separable inner ring, which simplifies the mounting and dismounting process. The polyamide cage ensures low friction and reliable operation, while the C3 internal clearance accommodates thermal expansion.

Specifications

• Manufacturer: NSK
• Part Number: NU211ETC3
• Type: Cylindrical Roller Bearing
• Bore Diameter: 55 mm
• Outer Diameter: 100 mm
• Width: 21 mm
• Cage Material: Polyamide
• Internal Clearance: C3 (Greater than Normal)
• Design: NU type, separable inner ring

Label Info

• Brand: NSK
• Model: NU211ETC3
• Made in: Japan

Application

Ideal for use in various industrial machinery, including gearboxes, pumps, compressors, and electric motors, where high radial loads and speeds are present.

Country of Origin

This product is manufactured by NSK in Japan.

CO2 Impact

Choosing this reused bearing over a new one prevents the emission of approximately 1.26 kg of CO2, which is comparable to the energy needed to charge a smartphone over 150 times.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What does the ‘ETC3’ suffix in NU211ETC3 mean?

The suffix denotes specific features of the bearing. ‘E’ indicates an optimized internal design for higher load capacity. ‘T’ specifies a polyamide cage. ‘C3’ refers to an internal clearance that is greater than the standard ‘Normal’ clearance, which is suitable for applications with temperature differentials or tight fits.

Is the inner ring of the NU211 separable from the outer ring assembly?

Yes, the ‘NU’ design means the inner ring has two integral flanges and the outer ring is flangeless. This allows the inner ring to be removed and mounted separately from the outer ring and roller assembly, which can simplify installation.

What is the primary advantage of a polyamide cage?

A polyamide cage (suffix ‘T’) is lightweight, has good sliding properties, and can operate with low noise levels. It is also resistant to many common industrial chemicals and offers excellent performance in high-speed applications, provided operating temperatures do not exceed its limits (typically around 120 deg C).

Last Update: Friday, March 13, 2026

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