The Timken Company RCJC Concentric Collar Flange Bearing

The Timken Fafnir RCJC 1-15/16 four-bolt square flange bearing unit with a concentric locking collar supports a 1-15/16 in shaft in industrial power transmission and material handling systems, providing secure shaft retention and improved concentricity for reliable operation in conveyors, packaging equipment, agricultural machinery, food processing equipment, processing equipment, and manufacturing systems. This RCJC Industrial Series mounted ball bearing features a GC1115KRRB bearing, housed in a cast-iron four-bolt flange with a shroud seal, and is factory prelubricated with a grease fitting for relubrication. Key dimensions include a total length of 5.626 in, bolt hole spacing 4.374 in, bolt hole diameter 0.630 in, housing width 1.689 in, and flange thickness 0.563 in. The unit accommodates a 1-15/16 in shaft and uses a concentric locking collar to maintain concentricity during dynamic loads. Dynamic load rating is 8,740 lbf (38,900 N) and static load rating is 5,210 lbf (23,200 N), making it suitable for industrial-duty use in power transmission and material handling where dependable support and straightforward maintenance are required. Common replacements include Timken RCJ 1-15/16 and RCJT 1-15/16, as well as the Dodge F4B-SC-115 equivalent.