You can apply for Social Security retirement benefits up to four months before you are entitled to receive them. 1 How to Check the Status of an Address Change with the Post Office. 2 How to Start a Non Profit Organization in Ohio. 3 How to Obtain a Mexican Birth Certificate Online.
1 A caster is a wheel mounted to a fork, with an optional, additional offset steering joint. 2  An omni-directional wheel (Mecanum wheel, Omni wheel, or Swedish wheel) is made of a large central hub with many additional smaller wheels mounted along the perimeter such that their axes are perpendicular to the central wheel.
A stem caster is an assembly containing a wheel or set of wheels mounted onto a fork, with a stem for attaching it to the bottom of an object. They are usually found in sets of four and are used to provide mobility to an otherwise stationary item. A stem caster can be either rigid or swivel.