Gates Poly Chain GT2 Stainless Steel Sprocket SS 8MX-45S-21 2012 7769-2145 8mm pitch 4.511 inch pitch diameter 45 grooves with a bore range of 1/2 - 2 1/8 inch for Poly Chain belts 21mm wide.
Markets/Applications Use with any Poly Chain® GT 2 Belts. Stainless steel Poly Chain GT2 sprockets are ideal for the food and beverage market or where non-corrosive sprockets are needed to prevent rust.