With their wide hubs and finished bores, these sprockets are ready to mount to a shaft. All are made of steel, include two set screws, and are designed for use with ANSI #40 single-strand chain.
This is a custom part. Please allow 2-4 days for shipping.
This is a ANSI #40 sprocket that is custom bored to fit our wheelchair motors (link TD-111-135). We use these in most of our chain driven robots with wheelchair motors.
SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader.
900 MHz 3 dBi Rubber Duck Antenna - RP-SMA Plug Connector