BlackStar 35B72 - 35 Pitch B-Hub Sprocket - 72 Tooth Hardened Teeth The 4/D270 is used for

The 4/D270 is used for high-shock and high-vibration drives

5 mm Number of Teeth 178 Belt Width 10 mm Pitch Length 801 mm (Pitch Length) Construction Chloroprene (Neoprene)

so the Megadyne 6/3VX850 interchanges with Gates

"mpn":"15/SPA1575-D&D"

"name": "What is 9/3V670 used for

BlackStar 35B72 - 35 Pitch B-Hub Sprocket - 72 Tooth Hardened Teeth The 4/D270 is used forThe BlackStar 35B72 is a 35 pitch B Hub roller chain sprocket with 72 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Specifications Part Number 35B72 Chain Pitch 35 Number of Teeth 72 Minimum Bore 3 4" Maximum Bore 1 1 2" Bore Type Plain Bore Hub Style B Hub Strand Count Single Material Steel Outside Diameter 8. 81" Pitch Diameter 8. 597" Approx. Weight 3. 42 lbs Cross