NTN UCF212-207D1-8 4-Bolt Flange Bearing 2-7/16" Bore

4-Bolt Flange Bearing for Industrial Mounting

The NTN UCF212-207D1-8 is a square housing unit with a 2-7/16 in cylindrical bore designed for fixed shaft support. It uses a radial ball insert made from alloy steel and a cast iron housing for rigid mounting on flat surfaces. The double-sealed closure helps retain lubricant and exclude contaminants in dirty environments. This bearing suits maintenance teams and OEMs replacing worn units on conveyors, fans or agricultural equipment.

Fits Standard Four-Bolt Patterns and Fixed Shafts

The housing provides a 5 5/8 in centre-to-centre bolt spacing and a 1.142 in back-side-to-centre width for direct replacement on existing frames. The fixed expansion type locks the shaft axially, so no separate locating collar is required. The UC212-207D1 insert is included and factory-lubricated with an NLGI #3 equivalent grease, reducing assembly time. Builders needing a floating or expansion-type unit should select a different housing style.

Rated for 2,500 RPM Across a Wide Temperature Range

The bearing operates continuously from -40 Degrees F to 250 Degrees F without relubrication intervals specified in the data. At the maximum 2,500 RPM speed rating the double seals and alloy steel balls maintain film strength under steady radial loads. Applications exceeding this speed or requiring frequent thermal cycling beyond the stated limits will need a different bearing solution.