SPROCKET FOR POWER SAWS COMPATIBLE WITH MODEL: A40E PROF41 PROF45 ˜ BELL INNER: 68.5mm ˜ HOLE: 16mm TOTAL HEIGHT: 26mm .325" 7 TEETH self-aligning ring 11892 roller cage: 11893 ALPINA - GGP - CASTELGARDEN STIGA - MOUNTFIELD CODE: 38505X ORIGINAL CODE: AT