
Browning AK39X7/8 Sheave
The Browning AK39X7/8 Sheave is a professional-grade, cast iron V-belt pulley designed for precision and durability in heavy-duty HVACR and industrial applications. This single groove AK sheave features a 3.75-inch outside diameter and a 7/8-inch fixed bore, ensuring a secure, direct-to-shaft fit for fractional horsepower drive systems. Constructed from high-quality close-grain cast iron, the component is statically balanced to provide smooth, vibration-resistant operation, which is critical for extending the life of motor bearings and fan assemblies. This versatile fixed pitch sheave is engineered for a wide range of compatibility, accommodating 3L, 4L, and A-section belts. With its precision-machined grooves and standard 0.1875-inch keyway, this Browning sheave delivers reliable power transmission and high-efficiency performance for blowers, compressors, and ventilation units across demanding commercial environments.
Key Benefits for Technicians- Optimized Power Transfer: Precision-machined single groove design maximizes belt-to-surface contact to prevent slipping.
- Vibration Mitigation: Each unit is statically balanced to ensure quiet, stable performance in blower and motor setups.
- Universal Belt Compatibility: Engineered for use with A belts, 4L belts, and 3L belts for maximum field flexibility.
- Durable Construction: Close-grain cast iron material offers superior wear resistance compared to standard pot metal alternatives.
- Easy Installation: The finished 7/8" bore with keyway and setscrew allows for immediate shaft mounting without additional machining.
- What is the datum diameter for this sheave? For A-section belts, the datum diameter is approximately 3.50 inches, while for 3L belts, it is 3.16 inches.
- Is this sheave compatible with Gripnotch belts? No, industry standards recommend avoiding these AK sheaves with bores 1" and under when using high-rated Gripnotch belts.
- What are the bore specifications? This unit features a 7/8-inch finished bore with a standard 3/16-inch (0.1875") keyway for secure torque transmission.
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: $55.65
-65%$55.65
$19.48Browning AK39X7/8 Sheave
The Browning AK39X7/8 Sheave is a professional-grade, cast iron V-belt pulley designed for precision and durability in heavy-duty HVACR and industrial applications. This single groove AK sheave features a 3.75-inch outside diameter and a 7/8-inch fixed bore, ensuring a secure, direct-to-shaft fit for fractional horsepower drive systems. Constructed from high-quality close-grain cast iron, the component is statically balanced to provide smooth, vibration-resistant operation, which is critical for extending the life of motor bearings and fan assemblies. This versatile fixed pitch sheave is engineered for a wide range of compatibility, accommodating 3L, 4L, and A-section belts. With its precision-machined grooves and standard 0.1875-inch keyway, this Browning sheave delivers reliable power transmission and high-efficiency performance for blowers, compressors, and ventilation units across demanding commercial environments.
Key Benefits for Technicians- Optimized Power Transfer: Precision-machined single groove design maximizes belt-to-surface contact to prevent slipping.
- Vibration Mitigation: Each unit is statically balanced to ensure quiet, stable performance in blower and motor setups.
- Universal Belt Compatibility: Engineered for use with A belts, 4L belts, and 3L belts for maximum field flexibility.
- Durable Construction: Close-grain cast iron material offers superior wear resistance compared to standard pot metal alternatives.
- Easy Installation: The finished 7/8" bore with keyway and setscrew allows for immediate shaft mounting without additional machining.
- What is the datum diameter for this sheave? For A-section belts, the datum diameter is approximately 3.50 inches, while for 3L belts, it is 3.16 inches.
- Is this sheave compatible with Gripnotch belts? No, industry standards recommend avoiding these AK sheaves with bores 1" and under when using high-rated Gripnotch belts.
- What are the bore specifications? This unit features a 7/8-inch finished bore with a standard 3/16-inch (0.1875") keyway for secure torque transmission.
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 AK39X7/8 Sheave is a professional-grade, cast iron V-belt pulley designed for precision and durability in heavy-duty HVACR and industrial applications. This single groove AK sheave features a 3.75-inch outside diameter and a 7/8-inch fixed bore, ensuring a secure, direct-to-shaft fit for fractional horsepower drive systems. Constructed from high-quality close-grain cast iron, the component is statically balanced to provide smooth, vibration-resistant operation, which is critical for extending the life of motor bearings and fan assemblies. This versatile fixed pitch sheave is engineered for a wide range of compatibility, accommodating 3L, 4L, and A-section belts. With its precision-machined grooves and standard 0.1875-inch keyway, this Browning sheave delivers reliable power transmission and high-efficiency performance for blowers, compressors, and ventilation units across demanding commercial environments.
Key Benefits for Technicians- Optimized Power Transfer: Precision-machined single groove design maximizes belt-to-surface contact to prevent slipping.
- Vibration Mitigation: Each unit is statically balanced to ensure quiet, stable performance in blower and motor setups.
- Universal Belt Compatibility: Engineered for use with A belts, 4L belts, and 3L belts for maximum field flexibility.
- Durable Construction: Close-grain cast iron material offers superior wear resistance compared to standard pot metal alternatives.
- Easy Installation: The finished 7/8" bore with keyway and setscrew allows for immediate shaft mounting without additional machining.
- What is the datum diameter for this sheave? For A-section belts, the datum diameter is approximately 3.50 inches, while for 3L belts, it is 3.16 inches.
- Is this sheave compatible with Gripnotch belts? No, industry standards recommend avoiding these AK sheaves with bores 1" and under when using high-rated Gripnotch belts.
- What are the bore specifications? This unit features a 7/8-inch finished bore with a standard 3/16-inch (0.1875") keyway for secure torque transmission.
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.












