What you have to know about casters:

The range of use of casters is increasing, and using the correct casters can save costs and improve work efficiency. How much do you understand about casters? The editor will talk to you about the cold knowledge you have to know about casters
1. The default unit of measurement is inches. When we buy casters, we always mention the size, and the unit of measurement here is inches, not inches in our country.
2. Do iron core wheels and cast iron wheels bear more weight than other wheels? No, it's not. The technology in the process enables the injection molded wheels to have the same load-bearing capacity. Some people in the market use cast iron wheels, which are low in price and cost saving.
3. The surface treatment of the caster bracket is generally galvanized and sprayed with black paint. In the market, the bracket colors you usually see are divided into two types: silver and black. Silver is achieved by electroplating with a layer of zinc to turn the color of the bracket into silver; Black is sprayed with black oil during painting, which turns the color of the bracket into silver.
4. Dual bearing is more stable than single bearing, and single bearing rotates faster. Double bearings are used in high-end products, with stronger stability, quietness, and load-bearing capacity than single bearings. Single bearings are a simplified version of double bearings. Although their performance may not be as good as double bearings, they offer higher cost-effectiveness compared to other bearings. If you want to save costs, single bearings can be used.
5. Braking method: The side brake is commonly used abroad, while the dual brake is used domestically. The design of the side brake is more user-friendly, suitable for many devices, and the price is relatively cheap; The appearance of the dual brake is more beautiful, and attention should be paid to the requirement of "installation height" during installation.
6. Is iron containing wheels more corrosion-resistant than other wheels? No, the single wheels produced by legitimate casters have undergone salt spray testing and meet national standards. If you purchase iron core wheels, the price will be even higher.
7. Rubber wheels (ER wheels) are softer than polyurethane wheels (PU wheels)? Not necessarily. The softness and hardness of the material can be modulated. Some manufacturers have rubber wheels that are harder than nylon wheels, so rubber casters also have both hard and soft rubber. When purchasing casters, if there are no requirements, they are assumed to be soft rubber.