The structure of the caster casters luggage casters casters 
 By a single wheel mounted on the bracket is made for installation in the equipment below it to move freely. The casters are divided into two categories: 
 A fixed casters 
 The mounting bracket coupled with a single wheel can only move along a straight line. 

 B Caster 
 360-degree turn to the stent coupled with a single wheel can be traveling in any direction. 

 Mounting height 
 From the ground to the vertical distance between the equipment installation location, installation height of the caster means the vertical distance caster base plate and wheel remote. 

 Bracket turned to center distance 
 Refers to the center rivet vertical line to the horizontal distance of the wheel core center. 

 Turning radius 
 Refers to the center rivet vertical line to the tire outer edge of the horizontal distance from the proper spacing so that the casters can make 360-degree turn. The turning radius is reasonable or not directly affect the life of the casters. 

 Driving load 
 Casters in the mobile load-bearing capacity. Also known as dynamic load. Casters dynamic load due to the implementation of the standards and factory test different. Also the material of the wheel. Key in the structure and quality of the stent is able to impact and shock. 

 Impact load 
 Instantaneous load-bearing capacity when the shock or vibration of the equipment by the bearer of casters. 

 Casters casters luggage casters static load 
 Casters in the stationary state can withstand the weight. The general situation of a static load for the exercise load (dynamic bearing) five to six times the static load should be at least 2 times the impact load. 

 Turn to 
 Rigid, narrow wheels than the soft, wide wheel easier to turn to. The turning radius is an important parameter of the wheel rotates, the turning radius is too short will increase the difficulty of steering too large will cause the wheels to shake and shortened life expectancy. 

 Travel flexibility 
 The casters driving flexibility factors: the stent structure and stent selection of steel, the size of the wheels, wheel type, bearings, etc.. The greater wheel travel flexibility as possible, smooth on the ground, hard, narrow round effort than the flat side of the soft wheels. But on the uneven ground, the wheels of soft effort. Uneven ground, soft wheels to better protect the equipment and shock. 
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