Browning AK56X3/4 Sheave 318973-401 a high-performance HVAC limit switch

a high-performance HVAC limit switch engineered for critical thermal protection

specifically preventing the premature cracking often seen in standard wrapped belts

Designed for serviceability

mechanical

It is designed to be field-installed onto existing shielded cables or sensor leads during repair or replacement of faulty connectors

Browning AK56X3/4 Sheave 318973-401 a high-performance HVAC limit switchThe Browning AK56X3 4 Sheave is a precision machined, single groove cast iron pulley designed for reliable power transmission in HVACR and light industrial applications. Engineered with a 5. 45" outside diameter and a 3 4" fixed bore, this component is balanced to ensure minimal vibration and extended bearing life for the motor. It is compatible with 3L, 4L, and A section V belts, providing versatility for various belt drive blower and fan assemblies.