Daikin-McQuay 020648602 Bearing

The Daikin-McQuay 020648602 is a heavy-duty 1-11/16" pillow block bearing engineered for high-load industrial HVACR applications, specifically within larger air handling units and chiller systems. This assembly features a precision-ground ductile iron housing designed to maintain shaft alignment under significant radial and axial loads. The self-aligning ball bearing insert accommodates minor shaft misalignments often encountered in field installations, ensuring consistent rotation and reduced friction. By utilizing a rugged housing and high-grade anti-friction steel, this part minimizes vibrational harmonics that can lead to premature motor or belt failure in commercial blower assemblies.

Installation of the McQuay 020648602 is streamlined via the eccentric locking collar, providing a secure mechanical fit to the 1-11/16 inch shaft. The unit includes an integrated grease zerk for simplified preventative maintenance, allowing technicians to purge contaminants and relubricate without disassembling the housing. Whether you are performing a bearing replacement for McQuay air handlers or upgrading a belt-driven fan system, this component ensures the dimensional stability and load-bearing capacity required for 24/7 mechanical operations.

• 1-11/16" Bore Diameter: Precision-fit for standard commercial drive shafts found in centrifugal fans.
• Ductile Iron Pillow Block: High-tensile strength housing prevents cracking under high-torque startup conditions.
• Self-Aligning Insert: Compensates for minor mounting variances to protect against localized heat buildup.
• Greaseable Zerk Fitting: Simplifies routine maintenance cycles for extended service life in demanding environments.
• Eccentric Collar Lock: Delivers superior gripping power on the shaft compared to standard setscrew designs.

Common HVACR Contractor Questions:

What is the primary application for the Daikin 020648602?
This 1-11/16 inch pillow block bearing is primarily used on the blower shafts of large-scale Daikin and McQuay air handling units (AHUs) where high-speed rotational stability is critical.

Does this bearing include the mounting housing?
Yes, this is a complete pillow block assembly, featuring both the internal bearing insert and the external cast iron mounting bracket.

Is this compatible with shafts larger than 1-11/16 inches?
No, this unit is machined specifically for a 1-11/16" shaft diameter. Confirming the shaft gauge with a micrometer is recommended prior to installation to ensure a proper tolerance fit.

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.