This NTN bower tapered roller bearing 55187C and 55437 1-7/8" bore 4-3/8" OD is a precision bearing manufactured by NTN. It supports and guides rotating machine elements, absorbing radial and axial forces while minimizing wear. Key specifications noted on this listing include 1-7/8" Bore. It is commonly in OEM equipment and MRO replacement for rotating machinery.
