Grainger Approved Semipneumatic Wheel, 16Inch Wheel Dia., 450 lb Load Rating 1NWZ9

- Semipneumatic wheels have a thick rubber wall with a nonpressurized air pocket in the center and will not go flat if they are punctured. 
- They are suitable for rolling over smooth, flat surfaces in areas that may contain sharp debris. 
- Semipneumatic wheels are lighter than flat-free wheels. 
- They require less maintenance than pneumatic wheels because they do not have to have their air pressure checked. 
- They are also more rigid and absorb less shock and vibration than pneumatic and flat-free wheels.
- Pneumatic, semipneumatic, and flat-free wheels have air-filled, foam-filled, or solid-rubber tires that absorb more shock and vibration and produce less noise than standard wheels. 
- These wheels are used on carts, trucks, dollies, and other equipment that will be transporting fragile or vibration-sensitive loads in laboratory, medical, or aerospace facilities. 
- They are also installed on wheelbarrows and other equipment that will be used for moving loads over rough or uneven surfaces in outdoor areas and industrial facilities. 
- The wheels allow the equipment to roll, which reduces the effort it takes to reposition or move the equipment.