#40 Roller Chain - 100' Spool

#40 roller chain for chain-driven slide gate operators. Pitch is 1/2 in, roller diameter 0.312 in, and inner width 5/16 in. Sold as one 100 ft spool. #40 is a common drive chain on residential and commercial slide gate operators. The chain runs the length of the gate, wraps the operator's drive sprocket and idlers, and bolts to the gate at each end. Features #40 roller chain, 1/2 in pitch Roller diameter 0.312 in, inner width 5/16 in Plain steel finish 100 ft spool for multiple gates or long runs Before You Order #40 and #41 share the same 1/2 in pitch but are not interchangeable. #40 has a wider 5/16 in inner width and a larger roller. Check the chain size in your operator manual or on the drive sprocket before you order. If you are replacing chain, measure pitch (pin center to pin center) and inner width. Master links are not included. Order #40 master links to join the chain ends, and a #40 half link if you need to adjust length by one pitch. Need a shorter length? This chain is also sold by the foot. Other sizes in this format: #41, #50 and #65. For wet or coastal sites, see the nickel plated or stainless steel #40 chain.