BlackStar D40BTL20H REV - Double Strand 40 Pitch Taper Lock Sprocket - 20 Tooth Thermoplastic 3-Bolt Flange Bracket "sku":"TB037256174377"

"sku":"TB037256174377"

so the Megadyne AA85 interchanges with Gates

"sku":"TB770075440437"

The 12T5/690US is a timing belt from D&D Global's Dura-True Torque Urethane Steel - T5 Series line

"sku":"3VX650-PIX"

BlackStar D40BTL20H REV - Double Strand 40 Pitch Taper Lock Sprocket - 20 Tooth Thermoplastic 3-Bolt Flange Bracket "sku":"TB037256174377"The BlackStar D40BTL20H REV is a 40 pitch double strand Taper Lock roller chain sprocket with 20 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a Taper Lock Bushing (sold separately). Specifications Part Number D40BTL20H REV Chain Pitch 40 Number of Teeth 20 Bore Type Taper Lock Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count