Description & Specifications
Our 40B9-SB stock bore sprocket is designed for versatility and customization. This sprocket is compatible with #40 ANSI roller chains and features 9 hardened teeth and a plain bore. The minimum plain stock bore allows you to machine it to any required diameter, add keyways & setscrews for secure shaft mounting, or even machine it to accept a bearing or bushing for smooth rotation. This sprocket ensures a perfect fit for your machinery, delivering reliable power transmission and performance.

40B9-SB Sprocket Dimensions
- ANSI Chain Size:40
- Bore (B):1/2"
- Tooth Count:9
- Pitch Diameter (PD):1.462''
- Outside Diameter (D):1.674''
- Sprocket Thickness (T):0.284''
- Hub Diameter (HD):1-1/8''
- Length Thru Bore (W):7/8''
- Material:1045CD
- Hardened Teeth:Yes (HRC 40-50)
- Type Of Finish:Black Oxide
All dimensions listed are nominal values.

