Lennox 20A85 Motor Bearing
For service calls involving high-static Lennox blowers or RTU fan motors, the Lennox 20A85 Motor Bearing (Part Number 106343-03) is the standard OEM replacement for ensuring shaft stability. This 5/8" Bore Rubber Cartridge Bearing is engineered with a set screw lock mechanism and CR202-10HG-A cartridge design, providing a secure fit on the motor shaft to prevent vibration and lateral axial movement. As a veteran-grade HVAC blower motor bearing, it features a heavy-duty rubber housing that dampens acoustics and absorbs harmonic resonance during high-RPM cycles. Whether you are performing a seasonal overhaul on a rooftop unit or addressing a noisy indoor air handler, this genuine Lennox 20A85 bearing replaces legacy part numbers 100639-03 and 10A08. Its precision internal race is designed to handle high radial loads while maintaining alignment in central air conditioning systems and industrial fan applications where reliability is non-negotiable for professional contractors.
Key Benefits for Technicians:
- Precise 5/8" Bore Size: Ensures a tight slip-fit on standard Lennox blower motor shafts, reducing the risk of shaft scouring.
- Resilient Rubber Cartridge: This rubber cartridge bearing significantly reduces decibel levels by isolating motor vibration from the mounting bracket.
- Set Screw Locking System: Provides a mechanical lock against the motor shaft to maintain consistent positioning under thermal expansion.
- High Compatibility Range: Direct OEM replacement for existing Lennox HVAC parts, ensuring drop-in installation without field modifications.
Common Questions & Technical Support:
What are the primary indicators that this bearing needs replacement?
Technicians should look for high-pitched squealing, excessive shaft play, or increased motor amperage draw caused by internal friction. If you see signs of "spinning" on the shaft or degraded rubber, a replacement motor bearing is required immediately to prevent motor burnout.
Can I use this for 1/2" shaft applications?
No, the Lennox 20A85 is specifically bored for 5/8" shafts. Using an incorrect bore size or sleeves can lead to catastrophic motor failure. Always verify the shaft diameter with a caliper before installation.
Does this bearing require manual lubrication?
Most cartridge-style Lennox bearings are sealed or pre-lubricated for the duration of their service life; however, you should always inspect the outer race for debris contamination during routine maintenance.
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.
Original: $43.65
-65%$43.65
$15.28Lennox 20A85 Motor Bearing
For service calls involving high-static Lennox blowers or RTU fan motors, the Lennox 20A85 Motor Bearing (Part Number 106343-03) is the standard OEM replacement for ensuring shaft stability. This 5/8" Bore Rubber Cartridge Bearing is engineered with a set screw lock mechanism and CR202-10HG-A cartridge design, providing a secure fit on the motor shaft to prevent vibration and lateral axial movement. As a veteran-grade HVAC blower motor bearing, it features a heavy-duty rubber housing that dampens acoustics and absorbs harmonic resonance during high-RPM cycles. Whether you are performing a seasonal overhaul on a rooftop unit or addressing a noisy indoor air handler, this genuine Lennox 20A85 bearing replaces legacy part numbers 100639-03 and 10A08. Its precision internal race is designed to handle high radial loads while maintaining alignment in central air conditioning systems and industrial fan applications where reliability is non-negotiable for professional contractors.
Key Benefits for Technicians:
- Precise 5/8" Bore Size: Ensures a tight slip-fit on standard Lennox blower motor shafts, reducing the risk of shaft scouring.
- Resilient Rubber Cartridge: This rubber cartridge bearing significantly reduces decibel levels by isolating motor vibration from the mounting bracket.
- Set Screw Locking System: Provides a mechanical lock against the motor shaft to maintain consistent positioning under thermal expansion.
- High Compatibility Range: Direct OEM replacement for existing Lennox HVAC parts, ensuring drop-in installation without field modifications.
Common Questions & Technical Support:
What are the primary indicators that this bearing needs replacement?
Technicians should look for high-pitched squealing, excessive shaft play, or increased motor amperage draw caused by internal friction. If you see signs of "spinning" on the shaft or degraded rubber, a replacement motor bearing is required immediately to prevent motor burnout.
Can I use this for 1/2" shaft applications?
No, the Lennox 20A85 is specifically bored for 5/8" shafts. Using an incorrect bore size or sleeves can lead to catastrophic motor failure. Always verify the shaft diameter with a caliper before installation.
Does this bearing require manual lubrication?
Most cartridge-style Lennox bearings are sealed or pre-lubricated for the duration of their service life; however, you should always inspect the outer race for debris contamination during routine maintenance.
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.
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Description
For service calls involving high-static Lennox blowers or RTU fan motors, the Lennox 20A85 Motor Bearing (Part Number 106343-03) is the standard OEM replacement for ensuring shaft stability. This 5/8" Bore Rubber Cartridge Bearing is engineered with a set screw lock mechanism and CR202-10HG-A cartridge design, providing a secure fit on the motor shaft to prevent vibration and lateral axial movement. As a veteran-grade HVAC blower motor bearing, it features a heavy-duty rubber housing that dampens acoustics and absorbs harmonic resonance during high-RPM cycles. Whether you are performing a seasonal overhaul on a rooftop unit or addressing a noisy indoor air handler, this genuine Lennox 20A85 bearing replaces legacy part numbers 100639-03 and 10A08. Its precision internal race is designed to handle high radial loads while maintaining alignment in central air conditioning systems and industrial fan applications where reliability is non-negotiable for professional contractors.
Key Benefits for Technicians:
- Precise 5/8" Bore Size: Ensures a tight slip-fit on standard Lennox blower motor shafts, reducing the risk of shaft scouring.
- Resilient Rubber Cartridge: This rubber cartridge bearing significantly reduces decibel levels by isolating motor vibration from the mounting bracket.
- Set Screw Locking System: Provides a mechanical lock against the motor shaft to maintain consistent positioning under thermal expansion.
- High Compatibility Range: Direct OEM replacement for existing Lennox HVAC parts, ensuring drop-in installation without field modifications.
Common Questions & Technical Support:
What are the primary indicators that this bearing needs replacement?
Technicians should look for high-pitched squealing, excessive shaft play, or increased motor amperage draw caused by internal friction. If you see signs of "spinning" on the shaft or degraded rubber, a replacement motor bearing is required immediately to prevent motor burnout.
Can I use this for 1/2" shaft applications?
No, the Lennox 20A85 is specifically bored for 5/8" shafts. Using an incorrect bore size or sleeves can lead to catastrophic motor failure. Always verify the shaft diameter with a caliper before installation.
Does this bearing require manual lubrication?
Most cartridge-style Lennox bearings are sealed or pre-lubricated for the duration of their service life; however, you should always inspect the outer race for debris contamination during routine maintenance.
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.
