Belimo KH-AFB Crankarm 3/4" Shaft AFB/NFB

The Belimo KH-AFB Crankarm is a linkage part that transfers actuator movement to a connected shaft for controlled mechanical positioning. Intended for AFB/NFB actuators with a 3/4-inch shaft, it provides proper rotational transfer between the actuator and the driven mechanism in HVAC systems. Its configuration maintains a secure connection while allowing smooth movement through the required operating range. Firm shaft grip, proper motion transfer, stable positioning, dependable coupling action, secure fastening, balanced rotational movement, and consistent actuator response contribute to proper damper adjustment and proper mechanical control.