Rollway Bearings 6307EMQ Bearing

The Rollway 6307EMQ is a high-precision, 35mm ID open ball bearing engineered for demanding HVACR and industrial motor applications. Featuring an electric motor quality (EMQ) rating, this single-row deep groove radial bearing is designed to minimize vibration and audible noise in high-speed rotating equipment. With a 35mm bore, 80mm outer diameter, and 21mm width, the 6307EMQ serves as a direct replacement for 6307 standard bearings where tighter tolerances and smoother operation are required. The open design allows for consistent lubrication flow within an oil bath or grease-circulating system, ensuring the high-speed radial load capacity is maintained during continuous duty cycles. This industrial-grade precision bearing utilizes high-carbon chrome steel construction for optimal fatigue resistance and dimensional stability. Professional installers should prioritize the 6307EMQ when servicing HVAC blower motors or pump assemblies where reducing harmonic resonance is critical for system longevity and performance efficiency.

• EMQ Precision: Electric motor quality rating ensures reduced friction and quieter operation in sensitive motor applications.
• High Load Capacity: Optimized internal geometry supports significant radial loads and moderate axial loads in both directions.
• Direct Compatibility: Drop-in replacement for standard 6307 series bearings, upgrading the assembly to a lower-vibration standard.
• Thermal Stability: Engineered to maintain precise clearances across a broad operating temperature range typical of mechanical rooms.

Common Questions

What are the primary differences between the 6307EMQ and a standard 6307 bearing?
The EMQ designation indicates the bearing has undergone specialized honing and noise testing, making it superior for electric motor shafts where standard 6307 bearings might produce excessive vibration.

Can the 6307EMQ be used in vertical shaft applications?
Yes, the deep groove design allows this bearing to handle the thrust loads associated with vertical orientations, provided the lubrication system is compatible with an open-face design.

Why choose an open bearing over a sealed or shielded version?
An open bearing is ideal for housings that provide an internal lubrication supply, allowing for easier maintenance, cooling, and the flushing of contaminants during routine service.

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.