Number 40 Chain Sprocket With 47 Teeth And One And One Eighth Inch Finished Bore With Keyway And Two Set Screws For Secure Mounting Precision Machined For Durable Power Transmission And Easy Installation

Single 47-Tooth #40 Sprocket with 1-1/8 Bore, Model 40BS47-1
✔️ 47 teeth, 1-1/8 in bore (28.6 mm), keyway & 2 set screws

This is a single, precision made #40 chain sprocket designed for reliable power transmission in conveyors, industrial machinery, and agricultural equipment. It ships ready for quick installation with a precision keyway and two set screws for secure mounting on a drive shaft.

✅ Chain size: #40 roller chain
✅ Teeth: 47
✅ Bore: 1-1/8 in (28.6 mm) finished bore
✅ Bore style: BS
✅ Keyway: 1/4 x 1/8
✅ Mounting: Includes 2 set screws

💡 What is a chain sprocket used for and how do you pick the right bore, teeth, and mounting features for a #40 chain system? This handy guide helps you size parts for common drive setups. - match chain size to #40 with 47 teeth - choose bore size 1-1/8 in (28.6 mm) with keyway - consider mounting features BS bore and set screws