Midco International 491900 Wheel
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Midco International 491900 Wheel

Midco International 491900 Wheel

The Midco International 491900 Blower Wheel is a precision-engineered combustion blower component designed for high-performance air delivery in industrial and commercial burner applications. This 5 1/4" diameter blower wheel features a 1 7/8" width and is specifically balanced for clockwise (CW) rotation. Constructed from cold work cast nylon, the 491900 wheel offers superior resistance to abrasion, impacts, and chemical exposure compared to standard metal alternatives. It is a critical OEM replacement part for Midco 400 series power gas burners, including models 400B-02, 400-33, and DS45, ensuring consistent static pressure and optimal fuel-to-air ratios. This 1/4" bore blower wheel is built for technicians who require a durable induction solution that maintains structural integrity under the high-cycle demands of modern HVAC induction fans. When servicing power burners, replacing a worn or fouled wheel with this assembly restores the necessary airflow velocity for clean combustion and reliable ignition sequences.

Key Benefits
  • Industrial-Grade Durability: Cast nylon construction prevents corrosion and handles harsh environmental conditions better than traditional steel wheels.
  • Precise Airflow Control: Engineered for the Midco 400B-02 and DS45 burners, maintaining the exact CFM required for safe operation.
  • Direct Compatibility: Features a standard 1/4" bore for a secure fit on the motor shaft, reducing vibration and mechanical wear.
  • High Resistance: The CW rotation design and material composition offer excellent resistance to chemical degradation and mechanical impacts.
Common Questions

What burner models is the 491900 blower wheel compatible with?
This wheel is the standard replacement for Midco power burners including the 400B-02, 400B02P, 400-33, DS45, and DS45B models.

Is the rotation reversible on this wheel?
No, this wheel is specifically designed for clockwise (CW) rotation. Installing a CW wheel on a CCW motor will result in significant loss of airflow and potential burner failure.

Why is cast nylon used instead of aluminum or steel?
Cast nylon provides a high strength-to-weight ratio, which reduces the starting torque on the motor, while also offering superior resistance to the corrosive byproducts often found in industrial environments.

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.

$70.44

Original: $201.26

-65%
Midco International 491900 Wheel

$201.26

$70.44

Midco International 491900 Wheel

The Midco International 491900 Blower Wheel is a precision-engineered combustion blower component designed for high-performance air delivery in industrial and commercial burner applications. This 5 1/4" diameter blower wheel features a 1 7/8" width and is specifically balanced for clockwise (CW) rotation. Constructed from cold work cast nylon, the 491900 wheel offers superior resistance to abrasion, impacts, and chemical exposure compared to standard metal alternatives. It is a critical OEM replacement part for Midco 400 series power gas burners, including models 400B-02, 400-33, and DS45, ensuring consistent static pressure and optimal fuel-to-air ratios. This 1/4" bore blower wheel is built for technicians who require a durable induction solution that maintains structural integrity under the high-cycle demands of modern HVAC induction fans. When servicing power burners, replacing a worn or fouled wheel with this assembly restores the necessary airflow velocity for clean combustion and reliable ignition sequences.

Key Benefits
  • Industrial-Grade Durability: Cast nylon construction prevents corrosion and handles harsh environmental conditions better than traditional steel wheels.
  • Precise Airflow Control: Engineered for the Midco 400B-02 and DS45 burners, maintaining the exact CFM required for safe operation.
  • Direct Compatibility: Features a standard 1/4" bore for a secure fit on the motor shaft, reducing vibration and mechanical wear.
  • High Resistance: The CW rotation design and material composition offer excellent resistance to chemical degradation and mechanical impacts.
Common Questions

What burner models is the 491900 blower wheel compatible with?
This wheel is the standard replacement for Midco power burners including the 400B-02, 400B02P, 400-33, DS45, and DS45B models.

Is the rotation reversible on this wheel?
No, this wheel is specifically designed for clockwise (CW) rotation. Installing a CW wheel on a CCW motor will result in significant loss of airflow and potential burner failure.

Why is cast nylon used instead of aluminum or steel?
Cast nylon provides a high strength-to-weight ratio, which reduces the starting torque on the motor, while also offering superior resistance to the corrosive byproducts often found in industrial environments.

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.

Product Information

Shipping & Returns

Description

The Midco International 491900 Blower Wheel is a precision-engineered combustion blower component designed for high-performance air delivery in industrial and commercial burner applications. This 5 1/4" diameter blower wheel features a 1 7/8" width and is specifically balanced for clockwise (CW) rotation. Constructed from cold work cast nylon, the 491900 wheel offers superior resistance to abrasion, impacts, and chemical exposure compared to standard metal alternatives. It is a critical OEM replacement part for Midco 400 series power gas burners, including models 400B-02, 400-33, and DS45, ensuring consistent static pressure and optimal fuel-to-air ratios. This 1/4" bore blower wheel is built for technicians who require a durable induction solution that maintains structural integrity under the high-cycle demands of modern HVAC induction fans. When servicing power burners, replacing a worn or fouled wheel with this assembly restores the necessary airflow velocity for clean combustion and reliable ignition sequences.

Key Benefits
  • Industrial-Grade Durability: Cast nylon construction prevents corrosion and handles harsh environmental conditions better than traditional steel wheels.
  • Precise Airflow Control: Engineered for the Midco 400B-02 and DS45 burners, maintaining the exact CFM required for safe operation.
  • Direct Compatibility: Features a standard 1/4" bore for a secure fit on the motor shaft, reducing vibration and mechanical wear.
  • High Resistance: The CW rotation design and material composition offer excellent resistance to chemical degradation and mechanical impacts.
Common Questions

What burner models is the 491900 blower wheel compatible with?
This wheel is the standard replacement for Midco power burners including the 400B-02, 400B02P, 400-33, DS45, and DS45B models.

Is the rotation reversible on this wheel?
No, this wheel is specifically designed for clockwise (CW) rotation. Installing a CW wheel on a CCW motor will result in significant loss of airflow and potential burner failure.

Why is cast nylon used instead of aluminum or steel?
Cast nylon provides a high strength-to-weight ratio, which reduces the starting torque on the motor, while also offering superior resistance to the corrosive byproducts often found in industrial environments.

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.

Midco International 491900 Wheel | GSIstore