Chainsaw Sprocket Bearing Included Replaces The Following Brands Oem: Brand: Stihl Oem: 1145 640 2010 Fits The Following Brands Models: Brand: Stihl Model: Ms201 , Ms201C , Ms201T , Ms201Tc Specs: 3/8" Pitch 6 Tooth Bearing Included. Contact Us For Any Question Regarding This Item.Replaces The Following Brands Oem: Stihl 1145 640 2010Fits The Following Brands Models: Stihl Ms201 , Ms201C , Ms201T , Ms201Tc3/8" Pitch , 6 Toothbearing Included.