NSK 51126

NSK 51126 Thrust Ball Bearing

Description

The NSK 51126 is a single direction thrust ball bearing designed for high-precision applications. It excels in handling heavy axial loads in a single direction. Its design features separable components, including a shaft washer, a housing washer, and a ball and cage assembly, which simplifies mounting and dismounting procedures. This bearing is not suitable for radial loads.

Specifications

• Manufacturer: NSK
• Part Number: 51126
• Type: Single Direction Thrust Ball Bearing
• Inside Diameter (d): 130 mm
• Outside Diameter (D): 170 mm
• Height (T): 31 mm
• Basic Dynamic Load Rating (Ca): 85.5 kN
• Basic Static Load Rating (C0a): 258 kN
• Limiting Speed (Grease): 1400 rpm
• Limiting Speed (Oil): 2000 rpm

Application

Ideal for use in industrial machinery such as machine tool spindles, vertical pumps, crane hooks, and other applications requiring high axial load capacity and precision.

Country of Origin

Made in Japan.

CO2 Impact

By choosing this reused NSK bearing, you are avoiding the emission of approximately 2.96 kg of CO2, which is produced during the manufacturing of a new steel bearing. This is a sustainable choice for your operations.

Availability

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

FAQ

What is the primary application for a single direction thrust ball bearing like the NSK 51126?

This type of bearing is designed to handle high axial (thrust) loads in one direction only. It’s commonly used in applications like crane hooks, vertical pump shafts, and machine tool spindles where the primary force is parallel to the axis of rotation.

Can the NSK 51126 accommodate any radial load or misalignment?

No, the design of a thrust ball bearing makes it unsuitable for any radial loads. Applying radial force can damage the bearing quickly. It also has very limited tolerance for misalignment between the shaft and housing, so precise mounting is critical for its performance and lifespan.

What type of lubrication is recommended for the NSK 51126?

The appropriate lubrication depends on the operating speed and load. For lower speeds, as indicated by its limiting speed of 1400 rpm for grease, a high-quality industrial grease is suitable. For higher speeds approaching its 2000 rpm oil limit, oil lubrication (such as an oil bath or circulating oil system) is necessary to ensure adequate cooling and lubrication of the rolling elements.

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Laatst bijgewerkt: Friday, March 13, 2026