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 very visual example of positive caster is a motorcycle's front steering forks. The forks point forward at the bottom and slope backward at the top. This rearward slope causes the front tire to remain stable when riding straight ahead and tilt towards the inside of the corner when turned.