Fits: Stihl 009, 010, 011, 020T, MS 200 T*Does not include bearing
Bearing #ORE37511 (Click on the link below for repair parts)
Pitch/Teeth: 3/8"-6
Fits: Stihl 017, 018, 019, 021, 023, 025*Does not include bearing
Bearing #ORE37325 (Click on the link below for repair parts)
Pitch/Teeth: .325"-7