Five Nights at Freddy's: Into the Pit Oswald and Pit Bonnie Print (into LFR5202 12NPP 15mm ID x 45mm U Groove Track Roller Bearing Track. LFR5202 12NPP 12mm U Groove Guide Bearing One Bearing LFR5202 12NPP 15mm ID x 45mm U Groove Track Roller Bearing, Bearing inner diameter is 15mm, Bearing outer diameter is 45mm and Bearing width is 15. 9mm. LFR5202 12NPP Bearing U Groove Track Roller Bearing Size: 15x45x15. 9 (dxDxB) Quantity: 1 Bearing Dynamic Load Rating Cw: 11. 7 KN Static Load rating Cow: 7 KN