Timken RAO2-3/16 Pillow Block Ball Bearing Unit

The Timken Fafnir RAO2-3/16 pillow block ball bearing unit is designed to support a 2-3/16 inch shaft in heavy-duty power transmission and material handling systems. This two-bolt pillow block houses a GN203KRRB wide inner ring ball bearing with an eccentric locking collar for secure shaft retention in demanding operating conditions, and it uses a cast iron housing with a shroud seal for rugged, long-life performance in conveyors, aggregate equipment, mining machinery, agricultural equipment, and bulk material handling setups. Key specifications include: MPN RAO2-3/16; Bearing type mounted ball bearing; Series RAO Heavy Series; Bearing number GN203KRRB; Shaft size 2-3/16 in (55.6 mm); Locking style eccentric locking collar; Housing style two-bolt pillow block; Housing material cast iron; Seal type shroud seal; Base to center height 3.063 in (77.8 mm); Overall length 11.311 in (287.3 mm); Overall height 6.031 in (153.2 mm); Bolt hole spacing 9.000 in (228.6 mm); Dynamic load rating 17,800 lbf (79,300 N); Static load rating 10,000 lbf (44,600 N); Weight approximately 17.5 lb (7.94 kg). Compatible replacements include Timken RSAO2-3/16, Dodge P2B-SC-203R equivalent, and NTN UCP211D1 equivalent, making it suitable for retrofit or replacement in existing power transmission setups.