Insert bearings are used in a wide spectrum of applications ranging from industrial, agricultural, food handling, manufacturing, and heavy vehicle maintenance
These common insert bearings, regardless their locking style, can be placed in may types of pillow blocks, 2-bolt, 3-bolt and 4-bolt flanges, take-up units as well as stamped steel housings
The "D1" suffix found on selected insert bearings designates that bearing is greasable and has at least one opening in the outer race for lubricant access
The "W3" suffix denotes the locking collar's set screw has a cup point
Locking collar, spherical outer diameter, insert bearings are available in the standard duty, flush backside,"200" series (i.e AEL208-108) and the wider, extended inner race series w/flinger option (UEL208-108)
Locking collar, cylindrical insert bearings with smooth outer diameters and flush backsides are available in the (i.e AELS208-108) series and allow you to press fit the bearing into place rather than mount in a self aligning housing
Another variant of the cylindrical insert bearing is the double set screw w/snap ring grooved O.D. denoted as the "ASS" series (ASS205-100D1) which offers even more mounting options
For medium duty self aligning ball bearing applications, please use the set screw w/flinger "X" (i.e. UCX08-108) series
For heavy duty self aligning ball bearing applications, please use the set screw w/flinger "300" (i.e. UC308-108) series
Did you know that you can interchange "X" medium duty inserts with "300" series heavy duty designs? Only shaft sizes 13/16 ~ 1-7/16" and metric sizes 25 ~ 35mm (see the first three bearing groupings in attached catalog image) have the exact same outer dimensions as one another, knowing this helps in a pinch