25 Series 22 Tooth 0.5 in. Hex Sprocket
#25 Series, 22 tooth, aluminum sprocket with 1/2 in. Hex Bore Note: Some hex bore sprockets may be hex broached from round bore sprockets that contain a keyway. This leaves a residual keyway tha...Read More
Some hex bore sprockets may be hex broached from round bore sprockets that contain a keyway. This leaves a residual keyway that will not affect performance.
- Bore: 0.502 in. hex hole
- Material: 7075 aluminum
- Number of Teeth: 22
- Outside Diameter: 1.87 in.
- Overall Hub And Sprocket Width: 0.405 in.
- Pitch Diameter: 1.76 in.
- Product Lifecycle: replaced by <a href='/products/25-series-symmetrical-hub-sprockets?sku=am-4777'>am-4777</a>
- Series: 25
- Sprocket Width: 0.123 in.
- Weight: 0.05 lbs
Returns are not accepted for this product.
Aluminum Hex Sprocket
It would be nice to have a set screw incorporated into this part. It would be more useful.
They're just what I expected. In fact, I somewhat doubted that they were actually made of 7075 aluminum (much stronger than 6061 and even 2024) but I'm pretty convinced they are. I have 1/2 hex stock and since it's slightly oversized I thought I'd press these onto it. I did, but it didn't exactly press, it broached the outside of my 6061-T6 stock and made for a great mount. I'm using some banebots wheels that I also highly recommend to anyone using these sprockets on small robots. Furthermore I recommend these sprockets and roller chain over timing belts which are simply inadequate at low speeds and high torques (300 inch-oz) and greater.
These are our standard sprockets for build all wheel drive bases.