Wheelchair Casters Two Variety Of Different Style and Size

Wheelchairindia casters come in a two variety of diameters and widths and each different style and size will have its own attributes that make it appropriate for different applications. The purpose of wheelchair casters is to stabilize the wheelchair while the drive wheels (powered wheels on a power wheelchair & large hand-rimmed wheels on a manual wheelchair) propel the wheelchair.

The casters are usually located at the front of the wheelchair but on wheelchairs where the drive wheels are in the center or front of the wheelchair the Caster wheel are usually located at the rear of the wheelchair.

Wheelchair: Caster Load
Caster load (the weight on the casters) is a factor that affects the ability of the casters to roll over obstacles and the lower the caster load the smaller the casters can be and still function well. Caster load has a greater effect if the casters are located on the front of the wheelchair regardless of whether the wheelchair is electric or manual. Caster loading is a factor that experienced wheelchair technicians take into account when setting up a wheelchair for a user, if possible, try to find an acceptable load level for function.

Wheelchair: Caster Diameter
The diameter of wheelchair Casters wheels for extreme rough terrain wheelchairs with the most common diameters being 6" and 8".

Generally the larger the caster diameter the easier the wheelchair will be propelled over obstacles and rough ground. On the other hand, the smaller the caster diameter the easier the caster will swivel and the more responsive the wheelchair will be when turning.

Based on this, one would think that the little 6" casters would be almost impossible to use outdoors however because the type of wheelchairs that use the tiny casters have their center of gravity centered on the rear wheels and there is very little weight on the casters.

Wheelchair: Caster Width
Caster width is another factor that affects how a caster will roll over rough terrain. The wider the caster tire, the easier rough terrain can be travel-led over. Most manual wheelchair casters are around ¾" wide with 2" being considered wide and power wheelchair casters can be between 6" and 8" wide.

The heavier the combined weight of the wheelchair and the user, the wider the the casters have to be to prevent them from sinking into soft terrain and to enable the wheelchair to roll over obstacles.

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