Working Load Limit (WLL): 2 Tons (4,000 lbs)Sheave Size: 3 inches Wireline Size Compatibility: 5/16" to 3/8"Bushing Type: Self-lubricating bronze bushing Material & Construction: Forged alloy steel, quenched and tempered Standards Compliance: Meets or exceeds all ASME B30.26 requirements (covering identification, ductility, design factor, proof load, and temperature limits) Fatigue Rating: Fatigue rated to 20,000 cycles at 1-1/2 times the Working Load Limit