For a factory in the caster industry for 15 years, in addition to being very confident about the quality of our products, we are also unambiguous about the professional knowledge of casters. Some common caster problems, but also often asked by customers, we have summarized and summarized them, hope it will be helpful to you.
01、What is the treatment of the surface of the caster bracket?
In the market, the most common bracket color is divided into two: silver and black. Silver is through electroplating, plating a layer of zinc or chromium, so that the color of the bracket becomes silver. And black is generally through electrophoresis, making its bracket become black. Another more high-grade casters, using powder coating or baking paint, the color can be customized according to customer needs, of course, the price is relatively high. Whether it is electroplating, electrophoresis, baking paint or powder coating, the purpose is to prevent the surface of the bracket from rusting.
02、What are the general braking methods of casters?
The brake of the caster can be divided into three kinds according to the function: brake wheel, brake direction, double brake.
a. Brake wheel: it is easy to understand, installed in the wheel sleeve or wheel surface, the device is manipulated by hand or foot. The operation is to step on it, the wheel can not turn, but can be steered. Usually also called “side brake” or “side brake”.
b. Braking direction: The braking direction is used in the universal wheel to make the universal wheel into a directional wheel, so that it maintains the same direction.
c. Double brake: It can lock the wheel to move and fix the top plate to rotate. Usually also called “full brake”.
d. Tread brake: the universal wheel can only brake the wheel, the top plate can still rotate.
03. Are iron core wheels and cast iron wheels more load-bearing than other wheels?
No, the technology of the process makes the injection molded wheels have the same load-bearing capacity.
04、Is the rubber wheel (ER wheel) softer than the polyurethane wheel (PU wheel)?
Not necessarily. Material hardness and softness can be modulated, some manufacturers of rubber wheels than nylon wheels are harder, so rubber casters also have hard rubber and soft rubber, when buying casters, if not required, are the default soft rubber.
05、Double bearing is more stable than single bearing, single bearing rotation is faster?
Double bearing is used in high-end products, stability, silent effect and load-bearing capacity than single bearing. Single bearing is a simplified version of double bearing, performance is not as good as double bearing, but the price is cheaper.
06、How is the size of casters calculated?
When we buy casters, we always mention how big the size is, where the size unit is inches, not our “inch”. General conversion is the size of inches divided by 25, is our inch. For example, the diameter is 50 inches of casters, is 2 inches.
07、What factors will affect the flexibility of casters
There are many factors that affect the flexibility of casters, which can be roughly divided into the following: a. The size of the wheel: The larger the diameter of the wheel, the more flexible the rotation, the more effort to push.
a, the size of the wheel: the larger the diameter of the wheel, the more flexible the rotation, the more effort to push.
b, the eccentric distance of the bracket: the larger the eccentric distance of the bracket, the more flexible, but the load-bearing weight is reduced accordingly.
c. Wheel material: on a relatively flat ground, the hard material is more flexible in rotation, but on an uneven ground, the soft wheel is more labor-saving.
d. Wheel size: the smaller the contact area between the wheel and the ground, the more flexible the rotation, so many wheels use curved design, the purpose is to reduce the contact area with the ground. Usually there are “flat edge” and “round edge”.
e. Bearings: Bearings are generally divided into: single ball bearings, double ball bearings, roller bearings, Terlin bearings, one precision ball bearings.
Single ball bearings and double ball bearings, flexible rotation, suitable for the need for quiet environment. Roller bearings, high load capacity, but general flexibility. Terring bearing is suitable for wet and corrosive environment, but with high resistance and general flexibility. One-piece precision ball bearing, precision machined products, suitable for higher load-bearing, low noise and flexible rotation.
08、What do I need to pay attention to in the installation of casters?
a, ensure that the installation in a horizontal position.
b, universal wheel, ensure that the rotation axis is in the vertical position.
c, directional wheel, make sure the two wheels are parallel and keep vertical with the bracket.
09、When 4 casters are used at the same time, is the load capacity of one caster multiplied by 4?
No, it is not. The first thing to consider when choosing a caster is the weight of the equipment itself and the maximum weight that can be carried, in general, the greater the total weight. Just choose the larger size of the caster, the larger the caster, it will be able to spread the weight, it is easier to walk on uneven ground. Usually divide the weight of the equipment itself and the weight of the load object by the weight of the caster, and we will choose a caster with a load capacity greater than this calculated weight when we actually install it. For the safety of the use of casters, a car in accordance with the load-bearing capacity of three casters to choose the appropriate casters.
10、What factors need to be considered when choosing casters?
a. Consider the ground: casters are generally used on flat ground, if the ground is uneven, residual hard objects or iron filings, etc., in this case, we should use harder casters, such as cast iron casters and nylon casters.
b. Consider the site environment: the external environment or ground with acid and alkali, generally use polyurethane casters. Temperature in the environment of 60℃ or above, generally use high temperature resistant casters or cast steel casters. The low temperature environment of minus 30℃, it is more suitable to use rubber wheels.
c. Consider the surrounding environment: the environment that requires low noise, it is necessary to use softer, flexible polyurethane, super artificial rubber (TPR) and other material Silent casters, such as offices, hospitals, floors, quieter workshops, shopping malls, dense transport channels, etc.
The above is based on the long-standing customer often asked questions, summarized and organized, if you have other questions, you can give us a message, we will certainly give you professional answers.
Post time: Dec-05-2022