Century Motors ONR6406 Motor

The Century Motors ONR6406 Motor is a high-performance 1/8 HP OEM replacement designed specifically for demanding HVAC and air-moving applications. This 115V single-phase motor operates at 1050 RPM and is built with a 42-frame (5-inch diameter) rolled steel housing. Engineered by Regal Rexnord, the ONR6406 is a drop-in Nordyne 902042 replacement, ensuring seamless mechanical and electrical compatibility for contractors servicing Intertherm, Miller, and other Nordyne-built furnaces. The shaded pole design utilizes an Open Air Over (OAO) enclosure for efficient thermal management during continuous duty. With a 1/2" diameter by 3-7/8" flat shaft and 17-inch leads featuring an AMP connector, this motor facilitates rapid field installation. The CCWLE rotation and sleeve bearing system provide quiet, vibration-resistant operation in residential and light commercial air handlers.

Key Benefits for Contractors

• Direct Cross-Reference: Identical to Nordyne 902042 and various 42Y frame specifications, eliminating the need for mounting modifications.
• Integrated Protection: Features automatic thermal overload protection to prevent motor failure during high-static or restricted airflow conditions.
• Tri-Flex Mounting: Includes flexible arm mounting options to accommodate multiple blower housing configurations.
• Reliable Starting: The 6-pole shaded pole configuration provides high starting torque for direct-drive fan applications without the need for a run capacitor.
• Legacy Compatibility: Frequently used in MGH, MGHA, and MMHA series furnaces, solving common airflow issues in mobile home and residential units.

Common Questions

Does this motor require a start or run capacitor?
No, the ONR6406 is a shaded pole motor and does not require an external capacitor for operation.

Can I use this motor to replace a 1/12 HP fan motor?
Yes, as long as the voltage (115V), RPM (1050), and physical dimensions match, a 1/8 HP motor can safely replace a 1/12 HP version to provide sufficient torque.

What is the proper orientation for this motor?
The sleeve bearing design in this unit is optimized for horizontal motor orientation within the air stream.

This item is not eligible for free shipping.

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.