4-Bolt Flange Mount Ball Bearing Unit, Cast Iron Housing Marked RF-4509 - Used

Cast-iron 4-bolt flange mount ball bearing unit with the number RF-4509 cast into the housing. Application: general industrial and marine shafting / deck-machinery style mounted bearing — application not verified; sold by photographs, identifiers, and dimensions. Brand is not confirmed from the part itself; RF-4509 is a cast-in marking that resembles the Browning/Emerson cast-iron flange unit series and should be verified against the manufacturer catalog. Condition: used take-off, untested. Paint remains on one face with light to moderate surface rust elsewhere; insert bearing present, no visible cracks or broken flange corners. No rotation or load testing has been performed. Bore size and bolt-hole spacing are not stated — request measurements before ordering. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.