Rexnord PEU331 Pillow Block Bearing

The Rexnord PEU331 is a 1-15/16 inch bore, two-bolt expansion pillow block bearing unit from Link-Belt, featuring a cast iron pillow block housing and a straight bore insert (UG331L) designed to accept a 1.9375 in shaft. This heavy-duty ball bearing assembly uses a 52100 bearing steel insert with a molded fiber glass reinforced nylon cage, and it seals with a clearance seal and flinger while remaining relubricatable via a 1/4-28 grease fitting. It supports a dynamic load rating of 13,900 lb and a static load rating of 8,500 lb, runs at up to 5,600 rpm, and offers 0.25 in expansion capability with end caps U3316C and expansion lock plug 3398B. The base length is 11.13 in, base width 3.13 in, overall height 6.22 in, weighs about 19.60 lb, and uses 5/8 in bolts with 8.88 in bolt spacing, making it suitable for belt drives and other industrial applications requiring a robust, heavy-duty pillow block unit.