So This Is Christmas

Merry Christmas is such an infectious feeling I like to feel that way all year around.

So if you are visiting just before Christmas, just after Christmas or even here on Christmas day I am sure you will find something of interest for you and in the spirit of Christmas.

It may be said that Christmas is no longer a celebration but this must be spoken by people that have never had trouble closing their eyes on Christmas Eve in an expectation of what maybe left for them on the carpet under the tree.

I continue to look forward to the surprise on my Grandchild's faces to this day at Christmas events.

Merry Christmas - Merry Christmas - Merry Christmas

Monday, July 22, 2013

Basics Concerning Stainless Steel Casters

By Chelsea Evans


Stainless steel casters are in form of small steering wheels, which are mounted at the foot of an object. They are also called castors and may be compound, double, or one depending on the structure they are installed on. They are fixed onto items such as tables, shopping carts, chairs, and many others. They are mounted on these structures to facilitate easy movement from one position to another.

They come in various sizes and are made using different materials. Some common materials include aluminum, rubber, plastic, or nylon. Castors that are made using stainless steel are durable and withstand weighty loads thus applied in several industrial applications. A heavy-duty castor is mounted on items like platform trucks, carts, and towlines. They function better on straight and smooth surfaces.

There are two major types of castors. The first version is rigid whereas the 2nd is swivel. A rigid castor is fitted on a stationary fork, thus non-flexible and tends to move along a straight line. A swivel castor is fixed on a pivot in a way that the wheel aligns automatically to the course of movement. The wheel is free to roll in any given direction without altering the orientation of the cart.

Swivel castors must have adequate offset distance between the center axes of vertical shafts and the center axes of castor wheels. The offset space helps in alignment of the wheels in the correct direction of movement as the cart. It causes the wheel assembly to spin around the axes of the shafts to align with the course of the cart. Should the offset space be disregarded then the wheels cannot rotate in case they are not facing in the correct direction.

Some castors have braking systems, which prevent rotation of vertical shafts and wheels. The braking system is in form of a pedal that pushes a brake cam against the wheel. A revolving lock is installed on each vertical shaft such that the shafts and wheels are unable to spin. By use of brakes, swivel castor may be converted into directional castor as the vertical shaft is lockable whereas the wheel moves freely.

Flutter is the major disadvantage with castors. Flutter refers to rapid swinging of the cart from one side to another. The oscillation occurs at given speeds. It is a form of speed wobble, which is observed in vehicles. The weight and trailing distance are the major determinants of speed at which flutter occurs.

Extending footrests and adding dampers can be of more importance in monitoring flutter. As fluttering occurs at great velocities because of instability. One way of improving stability is extending the trailing distance. Flutter may equally be dealt with by causing more friction at the pivots. Friction may be increased by including more washers at the pivots.

When in search for stainless steel casters several online companies sell them at reasonable prices. Such firms sell casters of all sizes, which are made of various materials. New and old clients can reach them via their websites on the internet for enquires and details.




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