What are the instructions - castor interpretation

Castor wholesale - 【 Industrial casters 】 Universal wheel, adjust the foot manufacturers actually castor also is this a series of designation, including the activities and fixed castor. Castor also is what we call the universal wheel, its structure is allowed to rotate 360 degrees; Fixed castor no rotational structure, can't turn. Usually two casters are generally use collocation, such as the structure of the trolley is in front of two fixed wheel, behind near the armrest is driven by two wheels. Castor composed of single wheel is installed on the bracket, used to install below the equipment makes it free to move. Castor is divided into two main categories: fixed stent with single wheel, A fixed caster can only move along A straight line. B activity castor turning of 360 degrees with single wheel, can run freely in any direction. Installation height means from the ground to the vertical distance between equipment installation position, the installation of the castor height refers to remote the largest vertical distance and castor base plate and the wheel. Stand to center distance refers to the vertical line to the center of the wheel core center rivet horizontal distance. Refers to the center of rotation radius rivet vertical line to the outside of the tire on the edge of the horizontal distance, proper spacing of the caster wheel can be turned 360 degrees. The turning radius is reasonable or not directly affects the service life of the castor. Castor driving load bearing capacity when moving. Also known as dynamic load. Castor of dynamic load due to the implementation of standard and factory test in different ways and different. Also because of the wheel material different and different. The key in the structure of support and quality can impact and shock resistance. Impact load when the equipment has fundamental impact or vibration castor instantaneous load bearing capacity. Static load castor can bear the weight of the under stationary state. Static load generally should exercise load ( Dynamic load) 5 ~ 6 times, static load should be at least 2 times the impact load. Steering hard, narrow wheel than soft, wide wheels turn more easily. Rotate wheel radius is one of the important parameters, short turning radius increases to the difficulty, too much will cause the wheels wobble and shorten the life. Driving factors that affect the caster wheel driving flexibility are flexibility: stents of the structure and the selection of steel, the size of the wheel, wheel type, bearing, etc. Driving wheels, the greater the flexibility, the better, on the ground at a steady, hard, narrow wheel than flat soft wheel. But on the uneven ground, soft wheels. But on the uneven ground, soft wheels can better protect equipment and avoid vibration.