MAKE: DODGE, , , OUTBOARD BEARING WITH PILLOW BLOCK COMPLETE ASSY, FOR INDUCED DRAFT STACK FAN SIZE 45, PART NO. COMPLETE PILLOW BLOCK PART NUMBER : P4B524-USAF-403LERAH (035787) -USAF 500 AIR HANDLING PILLOW BLOCKS WITH LER SEALS BEARING NUMBER : BRG22224KC3 (422990) – 4 3/16”(106.37MM), , ADAPTER SLEEVE (SNW TYPE) : H3124-SNW-403 (046430) METAL LABYRINTH SEAL (LER TYPE) : 52LER403 (042525) STABILIZING RINGS : 24-20 (041185)