Browning 1VP34X7/8 CLEAR PK Sheave

The Browning 1VP34X7/8 CLEAR PK is a professional-grade variable pitch sheave engineered for precise air balancing and belt-drive speed adjustments in HVACR systems. This single groove sheave features a high-density cast iron construction, providing the mass and durability required for continuous-duty fans, blowers, and pumps. With a 3.15" outside diameter and a 7/8" finished bore, this component integrates seamlessly onto standard motor shafts, including a pre-machined keyway and hollow-head setscrews for a secure, slip-free fit.

Designed for maximum versatility in the field, the Browning 1VP34 is compatible with 3L, 4L, A, AX, 5L, B, and BX V-belts. Its adjustable flange allows for a pitch diameter range of 1.7 to 3.3, enabling technicians to fine-tune airflow or head pressure without the need for multiple fixed-diameter pulleys. The CLEAR PK designation ensures the unit is delivered in protective packaging, maintaining the integrity of the precision-threaded barrel and angular-faced discs for smooth, binding-free adjustment during commissioning and system optimization.

• Precision Speed Control: The adjustable male and female threaded sections allow for incremental pitch changes to reach exact RPM targets.
• Heavy-Duty Cast Iron: Provides superior vibration dampening and wear resistance compared to standard aluminum alternatives.
• Universal Compatibility: One sheave handles multiple belt sections, including A-section and B-section belts, reducing truck stock requirements.
• Contractor-Ready Installation: Finished bore with 3/16" x 3/32" keyway simplifies retrofits and new installs on fractional horsepower motors.

• How do I adjust the pitch diameter? Loosen the locking setscrew on the movable flange and rotate the disc; moving the discs closer increases the pitch diameter and driven speed.
• What is the maximum horsepower rating? Standard 1VP series sheaves are typically rated for service in drives up to 25 HP, depending on the specific belt and application.
• Can this be used as a companion sheave? This is a driver sheave; for the driven side, use a standard fixed-pitch Browning sheave for optimal alignment and belt life.

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.