This set of wheelchair motors makes great heavy duty robot motors. One left motor and one right motor. They are right angle gear drives have been modified to include encoders. They are 24VDC and the operating speed is 120 RPM.
Ready to ship prebuilt tracked platform with DeWalt battery adapter. This lightweight platform uses IG42 122 RPM motors, all-terrain tracks, and an RC control system. Powered by standard DeWalt batteries for ease of use.