Sealmaster SEHB-28 1-3 4 Hanger Bearing Set 1-3 4in

Sealmaster SEHB-28 is a 1-3/4 in bore, 4-3/8 in outside diameter hanger bearing unit housed in a cast-iron casing for standard-duty, non-expansion service in eccentric-drive and hanger assemblies. The unit features a powder-coated epoxy cast-iron housing, a zone-hardened inner ring with 120° spacing setscrews, and Sealmaster's lock-and-pin dimple for direct lubrication and anti-rotation, while a felt labyrinth seal with a flinger protects the bearing in dry, dusty environments and a land-riding retainer promotes 360° grease circulation for improved lubrication retention. Key dimensions include bore 1.75 in, outside diameter 4.375 in, width 2.031 in, and overall height 5.438 in; locking is by setscrews, the bearing insert is 52100 bearing steel with a black oxide finish and an uncoated exterior, and the unit carries a 1-11/2 in thread size with replacement bearing 3-112. Operating specifications list a temperature range up to 220 °F, a dynamic rating around 7,889 lb, a static rating around 5,216 lb, and a maximum operating speed of 3,550 rpm, making SEHB-28 suitable for hanger applications on eccentric-drive conveyors and other equipment requiring robust, externally lubricated bearing support.