This bearing housing carries an insert bearing with a 20.0 mm bore diameter and provides a basic dynamic load rating of 13600 N. The cast iron housing has a two-bolt flanged design with a centring spigot for accurate positioning against a mating face, and the net mass is 0.61 kg. The insert bearing is secured in the housing by an eccentric locking collar, which clamps onto the shaft and prevents axial displacement of the inner ring. R seals on both sides restrict the ingress of contaminants and retain the internal grease fill. The centring spigot allows precise alignment of the housing unit during mounting, making the RCJTZ20-XL suitable for shaft-supported applications where accurate positioning and secure shaft locking are required.