BlackStar H40A38 2 PB - 40 Pitch A-Plate Sprocket - 38 Tooth - 2" Bore Light Duty Bored The 18/D285 has a 1-1/4"

The 18/D285 has a 1-1/4" width

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"name": "What is the temperature rating of BB87

7/8 QD Bushings - English Sizes 78393214"

BlackStar H40A38 2 PB - 40 Pitch A-Plate Sprocket - 38 Tooth - 2" Bore Light Duty Bored The 18/D285 has a 1-1/4"The BlackStar H40A38 2 PB is a 40 pitch A Plate roller chain sprocket with 38 teeth, precision manufactured from SAE 1045 steel with induction hardened teeth for extended wear life and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 2" bore and is ready for immediate installation. Specifications Part Number H40A38 2 PB Chain Pitch 40 Number of Teeth 38 Bore Size 2" Bore Type Plain Bore Hub Style A Plate