Looking for a reliable flange-mounted bearing unit? This is the QJZ UCFC207-22, a 4-bolt flange mount ball bearing unit. It consists of an insert bearing (UC207-22) housed in a sturdy cast iron housing (FC207). The key specification is the bore size, which is 1.375 inches (or 34.925 mm)—this is the inner diameter that fits onto your shaft. It uses a set screw (grub screw) locking mechanism to secure it to the shaft. The flange has a length of 5.315 inches (135 mm) and a width of 1.024 inches (26 mm), with four bolt holes for mounting to a flat surface. The overall width of the unit is 1.689 inches (42.9 mm). This type of bearing unit is commonly used in industrial applications, machinery, conveyors, or agricultural equipment where you need to support a rotating shaft that's mounted perpendicular to a surface. QJZ is a manufacturer with years of experience, and they focus on producing durable, precision bearings. Always confirm these dimensions match your shaft size and mounting requirements before purchasing.