4GNB9-2-AB-MV Burks Pump Repair Parts Breakdown, Exploded View Diagram & GNB Series Base Mounted Centrifugal Pumps PDF Manual. Power Frame Assembly 21062 Available- Includes: Slinger Washer (09918), Bearing Housing (20967), Seal (20998), Bearing, Outboard (21001), Bearing, Inboard (052935), Cover- Inboard Bearing (20968), Cap Screw (1-156-6), Retaining Ring (030650), Shaft (20977), Key (03234), & Grease Fitting (0003131).