SKF Bearings 3206A/C3 Bearing

For industrial HVACR systems requiring rigid shaft support and high-speed operation, the SKF 3206A/C3 double row angular contact ball bearing provides a premium solution for both radial and axial displacement. Designed to replace the traditional 3206AC3, this SKF Explorer class bearing features a 30mm bore, 62mm outside diameter, and a 23.8mm width. It utilizes a 30-degree contact angle in a back-to-back (O) arrangement, which effectively replicates the performance of two single-row bearings while significantly reducing the axial footprint. The C3 internal clearance is critical for high-efficiency motors and compressors, as it allows for thermal expansion during continuous operation without risking internal friction or seizing. Built with a robust metal cage and high-grade bearing steel, this open-closure unit is optimized for high radial loads and high axial loads in both directions, making it ideal for pump assemblies and cooling tower fan drives.

• Reduced Axial Space: The double-row design offers a compact solution compared to matched pairs, simplifying housing designs in modern HVAC units.
• Enhanced Thermal Compensation: Radial internal clearance C3 ensures smooth operation under the elevated temperatures typical of industrial motor housings.
• High-Speed Capability: Rated for a 10,000 RPM limiting speed, which is essential for high-frequency drive applications.
• Direct 3206AC3 Replacement: Ensures immediate compatibility with older equipment specifications without needing shaft modifications.
• Moment Load Support: The stiff internal arrangement effectively accommodates tilting moments in overhung load scenarios.

What is the difference between 3206A/C3 and 3206A?
The C3 designation indicates a "greater than normal" radial internal clearance. This is preferred in HVACR applications where the shaft may heat up more quickly than the housing, requiring extra room for expansion to maintain the dynamic load rating.

Can this bearing handle thrust from both directions?
Yes. Because it is an angular contact bearing with two rows of balls oriented in opposite directions, it manages combined thrust and radial loads bidirectionally.

Is this bearing pre-lubricated?
No, this is an open closure bearing. It requires an external lubrication system or manual grease packing upon installation, allowing technicians to use specialized low-temperature or high-speed HVACR lubricants as specified by the OEM.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.