Ultimate Heavy Duty Maintenance Free Caster = 20,000 lbs. Capacity 

All industrial casters are generally regarded as heavy-duty casters. These industrial casters are classified by duty determined primarily by weight capacity per caster. Whatever the weight, all are designed to make material handling easier. Several wheel options are available to ensure the perfect fit for your application: Our high-capacity casters are used in many industries, including aerospace, automotive, heavy equipment, military, and many others.