
Browning AK28X5/8 Sheave
The Browning AK28X5/8 Sheave is a precision-engineered fixed bore pulley designed specifically for fractional horsepower (FHP) applications. Machined from high-quality, close-grain cast iron, this single groove sheave provides the structural integrity required for consistent blower and fan performance in light industrial and HVACR systems. With an outside diameter of 2.80" and a 5/8" finished bore, it installs directly onto the motor shaft, eliminating the need for separate bushings and reducing mechanical complexity.
Engineered for versatility, this cast iron sheave is fully compatible with 3L, 4L, and A section belts. To ensure quiet operation and extended bearing life, every unit is statically balanced to the closest tolerances, minimizing vibration throughout the drive cycle. The AK28X5/8 features a standard 3/16" x 3/32" keyway and a hollow head setscrew (5/16-18 UNC) for a secure, slip-free fit. Note that while this component is optimized for classical V-belt profiles, it should not be utilized with Gripnotch (AX) belt ratings on bore sizes of 1 inch or under due to torque limitations.
Key Benefits- Optimized Compatibility: Designed for seamless integration with 3L, 4L, and A belts, providing flexibility for various drive ratios.
- Industrial Durability: Constructed from close-grain cast iron for superior wear resistance and thermal stability compared to lighter-duty alternatives.
- Vibration Reduction: Precision static balancing reduces harmonic resonance, protecting motor bearings and improving overall system efficiency.
- Efficient Installation: The finished bore design with an integrated keyway and setscrew allows for immediate mounting without the added cost of bushings.
What is the datum diameter for this sheave?
For 3L belts, the datum diameter is 2.26", while for A-section belts, the datum diameter (pitch diameter) is approximately 2.60".
Is this sheave compatible with notched belts?
No. According to engineering standards for AK sheaves with bores 1" and under, they should not be used with Gripnotch or Cogged (AX) belt ratings.
Does this part require a separate bushing?
No, the Browning AK28X5/8 is a finished bore sheave that mounts directly to a 5/8" shaft using the included setscrew and keyway.
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: $43.02
-65%$43.02
$15.06Browning AK28X5/8 Sheave
The Browning AK28X5/8 Sheave is a precision-engineered fixed bore pulley designed specifically for fractional horsepower (FHP) applications. Machined from high-quality, close-grain cast iron, this single groove sheave provides the structural integrity required for consistent blower and fan performance in light industrial and HVACR systems. With an outside diameter of 2.80" and a 5/8" finished bore, it installs directly onto the motor shaft, eliminating the need for separate bushings and reducing mechanical complexity.
Engineered for versatility, this cast iron sheave is fully compatible with 3L, 4L, and A section belts. To ensure quiet operation and extended bearing life, every unit is statically balanced to the closest tolerances, minimizing vibration throughout the drive cycle. The AK28X5/8 features a standard 3/16" x 3/32" keyway and a hollow head setscrew (5/16-18 UNC) for a secure, slip-free fit. Note that while this component is optimized for classical V-belt profiles, it should not be utilized with Gripnotch (AX) belt ratings on bore sizes of 1 inch or under due to torque limitations.
Key Benefits- Optimized Compatibility: Designed for seamless integration with 3L, 4L, and A belts, providing flexibility for various drive ratios.
- Industrial Durability: Constructed from close-grain cast iron for superior wear resistance and thermal stability compared to lighter-duty alternatives.
- Vibration Reduction: Precision static balancing reduces harmonic resonance, protecting motor bearings and improving overall system efficiency.
- Efficient Installation: The finished bore design with an integrated keyway and setscrew allows for immediate mounting without the added cost of bushings.
What is the datum diameter for this sheave?
For 3L belts, the datum diameter is 2.26", while for A-section belts, the datum diameter (pitch diameter) is approximately 2.60".
Is this sheave compatible with notched belts?
No. According to engineering standards for AK sheaves with bores 1" and under, they should not be used with Gripnotch or Cogged (AX) belt ratings.
Does this part require a separate bushing?
No, the Browning AK28X5/8 is a finished bore sheave that mounts directly to a 5/8" shaft using the included setscrew and keyway.
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
The Browning AK28X5/8 Sheave is a precision-engineered fixed bore pulley designed specifically for fractional horsepower (FHP) applications. Machined from high-quality, close-grain cast iron, this single groove sheave provides the structural integrity required for consistent blower and fan performance in light industrial and HVACR systems. With an outside diameter of 2.80" and a 5/8" finished bore, it installs directly onto the motor shaft, eliminating the need for separate bushings and reducing mechanical complexity.
Engineered for versatility, this cast iron sheave is fully compatible with 3L, 4L, and A section belts. To ensure quiet operation and extended bearing life, every unit is statically balanced to the closest tolerances, minimizing vibration throughout the drive cycle. The AK28X5/8 features a standard 3/16" x 3/32" keyway and a hollow head setscrew (5/16-18 UNC) for a secure, slip-free fit. Note that while this component is optimized for classical V-belt profiles, it should not be utilized with Gripnotch (AX) belt ratings on bore sizes of 1 inch or under due to torque limitations.
Key Benefits- Optimized Compatibility: Designed for seamless integration with 3L, 4L, and A belts, providing flexibility for various drive ratios.
- Industrial Durability: Constructed from close-grain cast iron for superior wear resistance and thermal stability compared to lighter-duty alternatives.
- Vibration Reduction: Precision static balancing reduces harmonic resonance, protecting motor bearings and improving overall system efficiency.
- Efficient Installation: The finished bore design with an integrated keyway and setscrew allows for immediate mounting without the added cost of bushings.
What is the datum diameter for this sheave?
For 3L belts, the datum diameter is 2.26", while for A-section belts, the datum diameter (pitch diameter) is approximately 2.60".
Is this sheave compatible with notched belts?
No. According to engineering standards for AK sheaves with bores 1" and under, they should not be used with Gripnotch or Cogged (AX) belt ratings.
Does this part require a separate bushing?
No, the Browning AK28X5/8 is a finished bore sheave that mounts directly to a 5/8" shaft using the included setscrew and keyway.
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.












