The SAF-XT pillow block housing is designed for typical SAF dimensional interchangeability, complete with such desirable features as 4-bolt caps, cap removal pry slots, elongated bolt holes, and dimpled feet for doweling. In addition to these features the SAF-XT housing also incorporates a better grease purging/sealing system for extra protection of the bearing in a hostile environment. Dodge® Pillow Block Housing, Both Ends Open Split Type SAF-XT, Series: 528, Four-Bolt Base Mounting, 6 in Base to Bore Centerline, 20.13 in Overall Length, 7.66 in Overall Width, 12.13 in Overall Height, Compatible Bore Diameter: 4-15/16 in, 5 in, Compatible Bearing Type: 22200K Adapter Mounted Bearing, 17.38 in Bolt Center-to-Center Length, 5.88 in Base Width, Cast Iron, Uncoated