NSK 7305BEAT85SUCNB

NSK 7305BEAT85SUCNB Angular Contact Ball Bearing

Description

The NSK 7305BEAT85SUCNB is a high-performance single-row angular contact ball bearing from the NSKHPS series. Engineered for precision and high-speed operation, it features a 40-degree contact angle, which provides a high axial load capacity in one direction. The T85 polyamide cage ensures low friction, reduced heat generation, and superior performance at high rotational speeds. Its ‘SU’ designation indicates it is suitable for universal matching, allowing for flexible use in paired arrangements (back-to-back, face-to-face, or tandem) to handle combined loads and provide specific levels of rigidity. Order now from spareparts2day for expert support and fast delivery.

Specifications

• Bore Diameter (d): 25 mm
• Outer Diameter (D): 62 mm
• Width (B): 17 mm
• Contact Angle: 40 degrees
• Cage Material: T85 Glass-Fibre Reinforced Polyamide
• Arrangement: Single Universal (SU)
• Precision Class: NSKHPS Standard
• Basic Dynamic Load Rating: 25.7 kN
• Basic Static Load Rating: 15.6 kN

Label Info

• Manufacturer: NSK Ltd.
• Type: 7305BEAT85SUCNB
• Series: NSKHPS

Application

This bearing is ideal for applications requiring high accuracy and speed, such as machine tool spindles, high-speed pumps, industrial compressors, and electric motors.

Country of Origin

Made in Japan.

CO2 Impact

By choosing this reused industrial part, you are contributing to a circular economy and avoiding approximately 0.5 kg of CO2 emissions compared to purchasing a new one.

Availability

This item is in stock and ready for immediate dispatch.

FAQ

What does ‘SU’ for Universal Matching mean?

Universal matching means that any single bearing marked ‘SU’ can be randomly paired with another ‘SU’ bearing to form a set (duplex, triplex, etc.). This simplifies assembly and inventory management, as you don’t need factory-matched pairs.

What are the benefits of the T85 polyamide cage?

The T85 glass-fibre reinforced polyamide cage offers several advantages, including higher limiting speeds, lower operating noise, reduced friction and heat generation, and better performance in conditions of marginal lubrication compared to traditional steel cages.

Can this 40-degree (BEA) bearing be replaced with a 25-degree (A) or 30-degree (A5) version?

No, this is not a direct replacement. A 40-degree contact angle provides higher axial stiffness and load capacity but a lower radial capacity and speed limit compared to smaller angles. The correct contact angle is critical for the application’s performance and longevity, so you should always replace it with the same type.

Last Update: Friday, March 13, 2026

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