1 Connecticut Children's Medical Center-Volunteer opportunities are available for anyone who is 13 years old, dependable, and able to commit to at least three hours of service per week for a minimum commitment of one year (six weeks during the Summer period). Children's Hospital Central California-We can match your skills and interests with a volunteer position that meets your needs and ours! 2  Whether it's playing with children in the Child Life Playroom, visiting with family members, or providing clerical support in an office setting, you can make a difference.
Definition of tractor - a powerful motor vehicle with large rear wheels, used chiefly on farms for hauling equipment and trailers. Definition of tractor - a powerful motor vehicle with large rear wheels, used chiefly on farms for hauling equipment and trailers.
An axle is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearings or bushings are provided at the mounting points where the axle is supported. In the latter case, a bearing or bushing sits inside a central hole in the wheel to allow the wheel or gear to rotate around the axle. Sometimes, especially on bicycles, the latter type axle is referred to as a spindle.