Includes 1 1/4" diameter tailwheel, and tailwheel mounting bracket. Use as a swivel caster or steering wheel for a desktop robot.
Quality Dubro parts. Wheels are 1 1/4" diameter, with 3/8" wide treads. Hole is 3/32". The tailwheel bracket includes the plastic mounting block, pre-bent axle, 3/32" dura collar and set screw, and retainer washers.
The wheel is held in position on the axle using the washers, which you solder on. Or if you prefer, you can substitute the washers for additional 3/32" dura collars, which you can purchase at any hobby store.