BlackStar 4-3V690SK STL - QD Sheave Heavy-Duty Seal com/s/files/1/0666/7721/products/T5-T10-AT5-AT10_705098c2-60f9-4121-bbfe-56f70f0937d9

com/s/files/1/0666/7721/products/T5-T10-AT5-AT10_705098c2-60f9-4121-bbfe-56f70f0937d9

com/s/files/1/0666/7721/products/Twin_Power_Other_06fe42cd-c2cb-45af-b5ae-6e9ff4d61c80

Belt Section 8V Sub-Type Banded Width 1" Thickness 29/32" Length 140 in Number of Bands/Ribs 12 Material Neoprene Reinforcement Polyester Cord Color Black Temperature Range -30°F to 185°F

so a 270J16 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

Prefer our Diesel Belting equivalent: 475-5M-25 Timing Belt 5M 25mm x 475mm OC Diesel Belting

BlackStar 4-3V690SK STL - QD Sheave Heavy-Duty Seal com/s/files/1/0666/7721/products/T5-T10-AT5-AT10_705098c2-60f9-4121-bbfe-56f70f0937d9The BlackStar 4 3V690SK STL is a 4 groove qd sheave for 3V section belts, manufactured from cast iron. Requires a QD Type SK Bushing (sold separately). Specifications Part Number 4 3V690SK STL Product Type QD Sheave Number of Grooves 4 Belt Profile 3V Outside Diameter 6. 90" Bushing Required QD Type SK Bushing Material Cast Iron Approx. Weight 13. 100 lbs Pitch Diameter 69. 0" Compatible Belts 3V Bushing Required This sheave requires a QD Type SK