SNR 2211.KC3 J30

SNR 2211.KC3 (J30) Self-Aligning Ball Bearing

Description

The SNR 2211.KC3 is a double-row self-aligning ball bearing engineered for high performance and reliability. It is designed to tolerate both static and dynamic misalignment. The ‘K’ designation indicates a tapered bore (1:12), allowing for mounting using an adapter sleeve on a cylindrical shaft. The ‘C3’ suffix signifies a radial internal clearance greater than normal, making it suitable for applications involving high speeds or significant temperature variations. This bearing is an excellent choice for demanding industrial environments.

Specifications

• Bore Diameter (d): 55 mm
• Outside Diameter (D): 100 mm
• Width (B): 25 mm
• Bore Type: Tapered (K)
• Internal Clearance: C3
• Cage Material: Pressed Steel (J30)
• Number of Rows: 2
• Weight: Approx. 0.78 kg

Label Info

• Manufacturer: SNR
• Part Number: 2211.KC3 (J30)
• EAN: 3413520081072

Application

This bearing is widely used in applications where shaft deflection or mounting errors are expected. Common uses include agricultural machinery, conveyor systems, fans and blowers, and general industrial machinery.

Country of Origin

France

CO2 Impact

By purchasing this reused component, you are contributing to a circular economy and helping to prevent 1.56 kg of CO2 emissions that would be generated from manufacturing a new one.

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 significance of the ‘K’ and ‘C3’ suffixes on the SNR 2211.KC3 bearing?

The ‘K’ indicates that the bearing has a tapered bore with a taper of 1:12. This design allows it to be mounted on a cylindrical shaft using an adapter sleeve (e.g., H series). The ‘C3’ indicates that the bearing has a radial internal clearance that is greater than the standard ‘Normal’ clearance, which is necessary for applications with high rotational speeds or temperature gradients to prevent seizure.

How do I properly mount a bearing with a tapered bore like the 2211.KC3?

Mounting a tapered bore bearing involves driving it up the tapered seat of an adapter sleeve or shaft until the required reduction in radial internal clearance is achieved. This is typically done using a lock nut and is measured with feeler gauges. Following the manufacturer’s guidelines for clearance reduction is critical to ensure correct preload and optimal bearing life.

What type of lubrication is recommended for this bearing, and is it pre-lubricated?

This bearing is typically shipped with a preservative oil coating and is not pre-filled with grease. The appropriate lubrication (oil or grease) depends on the application’s speed, load, and operating temperature. A high-quality lithium-based grease is suitable for most general-purpose applications. Always ensure the bearing is properly lubricated before operation.

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Friday, March 13, 2026