Rollway Bearings 6309ZZC3EMQ Bearing

The Rollway Bearings 6309ZZC3EMQ Bearing is a professional-grade deep groove ball bearing engineered specifically for high-speed HVACR applications and electric motor quality (EMQ) performance. Featuring a 45mm bore diameter, 100mm outer diameter, and a 25mm width, this single-row radial bearing is constructed from high-carbon 52100 bearing steel for superior fatigue resistance. The C3 radial internal clearance is a critical specification for contractors, providing the necessary room for thermal expansion during continuous operation in hot motor housings, which prevents premature binding. Each unit comes equipped with double metal shields (ZZ) to protect the internal honed raceways from dust and debris while retaining high-temp lubricant. Designed for low noise and vibration, these bearings ensure smooth operation in pumps, blowers, and compressors where acoustic performance and mechanical stability are non-negotiable.

• Electric Motor Quality (EMQ) standards ensure the honed raceways provide ultra-quiet operation and reduced friction.
• C3 internal clearance prevents shaft seizure by accommodating thermal expansion in high-temperature environments.
• Double shielded (ZZ) design offers effective physical protection against particulate contamination in mechanical rooms.
• High dynamic load rating of 52.8 kN supports demanding industrial radial and axial thrust loads.
• Interchangeable with major brands like SKF, FAG, and NSK for streamlined field replacements.

Is the 6309ZZC3EMQ suitable for high-speed blower motors?
Yes, the C3 clearance and EMQ rating make this bearing the standard choice for high-speed centrifugal fans and motors where heat and noise must be managed.

What is the difference between ZZ and 2RS for this part?
The ZZ suffix indicates non-contact metal shields which offer lower friction for high-speed efficiency, whereas 2RS indicates contact rubber seals better suited for high-moisture environments.

Can I use this bearing in a vertical shaft application?
This deep groove ball bearing is designed for radial loads but can handle moderate axial thrust in both directions, making it compatible with most vertical HVAC pump and motor configurations.

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.