NSK 2311KTNGC3

NSK 2311KTNGC3 Self-Aligning Ball Bearing

Description

This is a high-performance self-aligning ball bearing, model 2311KTNGC3, from leading manufacturer NSK. Made in Germany, this bearing is designed to accommodate misalignment between the shaft and housing. It features a tapered bore for secure mounting with an adapter sleeve and a polyamide cage for high-speed capability and low friction. The C3 internal clearance makes it suitable for applications involving high temperatures or tight fits. This item is new old stock, ensuring top quality at an excellent value.

Specifications

• Manufacturer: NSK
• Model: 2311KTNGC3
• Inner Diameter (Bore): 55 mm
• Outer Diameter: 120 mm
• Width: 43 mm
• Bore Type: Tapered (K), 1:12 taper
• Cage Material: Polyamide (TN)
• Internal Clearance: C3 (Greater than normal)

Label Info

• Brand: NSK
• Part Number: 2311KTNGC3
• Country of Origin: Germany

Application

Ideal for use in various industrial applications including agricultural machinery, conveyor systems, fans and blowers, and textile machines where shaft deflection or mounting errors are expected.

Country of Origin

Manufactured by NSK in Germany.

CO2 Impact

By purchasing this reused bearing, you are saving approximately 4.6 kg of CO2 compared to a new production. This is equivalent to the emissions from driving a car for 23 kilometers.

Availability

This is a new old stock item. The bearing is in pristine condition, but the original packaging may show signs of storage wear. Order now from spareparts2day for expert support and fast delivery.

FAQ

What does the ‘K’ suffix in 2311KTNGC3 signify?

The ‘K’ indicates that the bearing has a tapered bore with a standard taper of 1:12. This design allows for mounting on a tapered shaft or on a cylindrical shaft using an adapter sleeve.

What are the advantages of the ‘TN’ polyamide cage?

The ‘TN’ suffix denotes a polyamide resin cage. These cages are lightweight, have low friction characteristics, and can operate at high speeds. They also offer good resistance to many chemicals and can handle minor misalignment well.

When is a C3 internal clearance necessary for a bearing like this?

A C3 clearance, which is greater than standard, is required in applications where there are high operating temperatures or a tight interference fit is used during mounting. These conditions can reduce the internal clearance, and C3 ensures the bearing does not seize.

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Last Update: Friday, March 13, 2026