102070 40BB18H Idler Sprocket from Baldor-Dodge is a ball-bearing idler sprocket designed for 1/2-inch pitch roller chain, featuring 18 teeth and hardened teeth for durability. It has an outside diameter of 3.14 inches, a bore diameter of 5/8 inch, a through-bore length of 0.72 inches, and a hub diameter of 5/8 inch, all sized for chain size 40. The unit is intended to be used with 40-pitch chain in drive-and-idler configurations, such as conveyors, material-handling lines, and other power-transmission setups where a reliable, hardened-tooth idler sprocket is required.
