Rollway Bearings 6307ZZC3EMQ Bearing

The Rollway 6307ZZC3EMQ is a high-performance deep groove ball bearing engineered for heavy-duty HVACR applications where radial and axial load management is critical. Featuring a 35mm bore, 80mm OD, and 21mm width, this double shielded ball bearing utilizes metal shields (ZZ) to retain high-speed grease while preventing the ingress of dust and airborne contaminants into the raceways. The C3 internal clearance is vital for motors and compressors, providing the necessary room for thermal expansion during high-temperature operation to prevent premature seizure. As an EMQ (Electric Motor Quality) rated component, it is manufactured to tighter vibration and noise tolerances, ensuring smooth rotational stability in 35mm ID ball bearing replacements. This industrial-grade radial bearing is designed for longevity in high-RPM environments, making it a reliable choice for technical contractors servicing commercial air handlers, pumps, and condenser fan motors requiring precise fitment and reduced friction.

• Electric Motor Quality (EMQ) rating ensures ultra-low vibration and quiet operation in sensitive HVAC environments.
• C3 internal clearance allows for optimal performance during thermal expansion and heavy radial loads.
• Double metal shields (ZZ) provide durable protection against debris without increasing rotational torque.
• High-grade chrome steel construction offers superior fatigue resistance and load-bearing capacity.
• Standard 6307 series dimensions ensure drop-in compatibility for a wide range of industrial motor frames.

What is the benefit of C3 clearance in HVAC motors?
C3 clearance provides extra internal space to compensate for shaft expansion as the motor reaches operating temperature, preventing the bearing from binding.

Can this bearing be used in vertical shaft applications?
Yes, the 6307ZZC3EMQ is rated for both radial and axial loads, making it suitable for vertical motor configurations often found in pump systems.

Should I remove the shields to add my own lubricant?
No, these bearings are factory-lubricated with high-speed grease and the metal shields are designed to remain intact for the duration of the component's service life.

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.