NSK 2309-2RSTNG AR3N5

NSK 2309-2RSTNG Self-Aligning Ball Bearing

Description

This is a new-old-stock NSK 2309-2RSTNG, a high-quality self-aligning ball bearing designed to handle shaft misalignment. Manufactured in Germany, it offers exceptional reliability for various industrial applications. The bearing features two rows of balls, a common sphered raceway in the outer ring, and two deep uninterrupted raceway grooves in the inner ring, making it insensitive to angular misalignment of the shaft relative to the housing.

Specifications

• Manufacturer: NSK
• Type Number: 2309-2RSTNG
• Bore Diameter (d): 45 mm
• Outer Diameter (D): 100 mm
• Width (B): 36 mm
• Seals: 2RS (Contact NBR seals on both sides)
• Cage: TN (Polyamide)
• Basic Dynamic Load Rating: 43.5 kN
• Basic Static Load Rating: 19.3 kN

Label Info

• Brand: NSK
• Model: 2309-2RSTNG
• Additional Codes: AR3N5, 104

Application

Ideal for applications in agricultural machinery, fans and blowers, food processing equipment, and textile machinery where shaft deflection or mounting errors are expected.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this reused bearing, you are saving approximately 2.5 kg of CO2, which would have been produced during the manufacturing of a new one. This is equivalent to the emissions of a car driving over 12 kilometers.

Availability

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

FAQ

Question?

What is the main advantage of a self-aligning ball bearing like the 2309-2RSTNG?

The primary advantage is its ability to accommodate static and dynamic angular misalignment between the shaft and housing, which can be caused by machining inaccuracies or shaft deflection under load. This reduces stress on the bearing and extends its service life.

Question?

What does the ‘2RSTNG’ suffix signify in this NSK bearing model?

‘2RS’ indicates that the bearing is fitted with contact seals made of NBR (Nitrile Butadiene Rubber) on both sides to protect against contaminants and retain grease. ‘TN’ or ‘TNG’ refers to the snap-type cage made from polyamide, which offers good sliding properties and elasticity, suitable for high-speed applications.

Question?

Is any special handling required for the polyamide (TN) cage during installation or storage?

Yes, bearings with polyamide cages should not be stored or used at temperatures above 120 deg C. During installation, avoid using impact methods directly on the cage and ensure that any mounting fluids are compatible with polyamide to prevent material degradation.

Last Update: Friday, March 13, 2026

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