This model is a direct 1:1 replacement for the BASO H43AB-4C

to maintain accuracy

with a maximum supply pressure rating of 20 psig

or visible debris and bent blades on the existing wheel

For larger shafts up to 3/4"

Carrier 38RR501871 Bearing Bracket 321142-301 This model is a directThe Carrier 38RR501871 Bearing Bracket is a critical OEM replacement part designed for precision motor and fan shaft support in Carrier HVAC units, including packaged units (RTU), heat pumps, and central air conditioners. Engineered to meet exacting factory authorized specifications, this heavy duty mounting bracket ensures proper component alignment, which is vital for reducing vibrational stress and hardware fatigue during high static operation.