SKF SY 40 LF Pillow block ball bearing unit with extended inner ring and SKF ConCentra locking, cast iron, ISO standards

Pillow (plummer) block ball bearing units consist of an insert bearing mounted in a cast iron housing that can be bolted to a support surface. It has an inner ring extended on both sides and is locked onto the shaft by a SKF ConCentra locking, creating a true concentric tight fit, and setting the correct internal clearance within the bearing, and making it easy to mount.