NSK 7900CTYNSULP4

NSK 7900CTYNSULP4 High-Precision Angular Contact Bearing

Description

The NSK 7900CTYNSULP4 is a single-row angular contact ball bearing, part of the NSKHPS (High Performance Standard) series. It is engineered for high-speed, high-precision applications that demand rigidity and accuracy, such as machine tool spindles, robotics, and measuring instruments. The P4 precision class ensures extremely tight tolerances for superior rotational accuracy.

Specifications

• Manufacturer: NSK
• Type: 7900CTYNSULP4
• Series: NSKHPS
• Bore Diameter: 10 mm
• Outside Diameter: 22 mm
• Width: 6 mm
• Contact Angle: 15 degrees (C)
• Cage Material: Polyamide Resin (TYN)
• Arrangement: Universal Matching (SU)
• Preload: Light (L)
• Precision Class: P4 (ISO Class 4)

Label Info

• Full Part Number: 7900CTYNSULP4
• Additional Code: DB-05596

Application

This bearing is ideal for main spindles of machine tools, high-frequency motors, printing machinery, and other applications requiring high rotational accuracy and speed under combined radial and axial loads.

Country of Origin

Made in Japan.

CO2 Impact

Opting for this component helps avoid 0.024 kg of CO2 emissions associated with the production of a new part, contributing to a more sustainable industrial practice.

Availability

Available from stock for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?

What does the ‘TYNSULP4’ suffix signify on the NSK 7900C bearing?

Answer: The suffix provides critical details: ‘TYN’ indicates a high-speed polyamide resin cage. ‘SU’ means it’s for universal matching, allowing it to be used singly or in paired sets (DB, DF, DT). ‘L’ denotes a light preload, and ‘P4’ signifies a very high precision class (ISO Class 4), suitable for machine tool spindles and other high-accuracy applications.

Question?

What are the lubrication and mounting considerations for a P4 precision bearing like this?

Answer: High-precision bearings like the 7900CTYNSULP4 require extremely clean assembly environments. Lubrication should be carefully selected based on the operating speed and temperature; grease or oil-air lubrication is common. It’s crucial to use appropriate tools and follow strict mounting procedures to avoid damaging the bearing and to achieve the specified preload and running accuracy.

Question?

Can I use this bearing as a direct replacement for a standard 7900 bearing without a suffix?

Answer: While the basic dimensions (10x22x6mm) are the same, this P4 precision bearing is not a direct drop-in for a standard-grade bearing. It’s designed for applications with much tighter tolerances. Conversely, using a standard bearing in a P4-spec application would lead to poor performance, reduced accuracy, and premature failure. Always match the suffix codes.

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Last Update: Friday, March 13, 2026