Deep groove ball bearings: Deep Groove Ball Bearings, Stanard Deep Groove Ball Bearing, Precision Deep Groove Ball Bearing NINGBO BORINE MACHINERY CO.,LTD , https://www.borine-agroparts.com
Stainless steel water tanks are made of stainless steel plates, and stainless steel plates have many types. According to relevant national standards, SUS304 stainless steel plates must be used for production of stainless steel water tanks (including insulation water tanks for solar water heaters), which are commonly called "edible grade stainless steel plates". This steel plate has a high nickel content and has high corrosion resistance. Water tanks made of this steel plate generally have a lifespan of more than 20 years, and can meet the national drinking water sanitary standards.
Due to market competition, and the fact that ordinary people cannot distinguish the material of stainless steel, many individual factories use non-edible grade steel plates (such as stainless steel plates for decoration 201) to make water tanks. The cost can be reduced by more than 50%, but the service life can only be a few years. If the water quality is poor, it will even corrode and leak in a few weeks.
2. Pay attention to the thickness of the steel plate
The thickness of stainless steel plates is millimeter-level. Generally, household water tanks (below 2M3) are usually made of steel plates of 0.4-0.5 mm thick, and steel plates above 1.0 mm are rarely used. In order to deceive the people to obtain illegal profits, some manufacturers boast about the thickness of steel plates and increase customers' desire to buy, which is extremely immoral. Customers with conditions can use a spiral micrometer to measure the thickness of the steel plate, or use the weighing method to measure it. The weight of the thick plate is heavier, and a kilogram will have a material cost difference of nearly 50 yuan.
3. Pay attention to the capacity of the water tank
According to industry custom, stainless steel water tanks are measured in cubic meters. A cubic stainless steel water tank can hold one ton of water, commonly known as one ton of water tank. At present, fraudulent behavior of using small to fill the big is common on the market. A ton of water tanks often can only hold 400 kilograms of water, which is a far cry from the gap.
4. Pay attention to after-sales service
A good product must have standardized after-sales service and commitment guarantees. In short, since customers cannot be expert in every industry, when purchasing and installing stainless steel water tanks, it is best to choose products from regular manufacturers, otherwise it will look cheap and usually buy counterfeit and shoddy products.
Deep groove ball bearings have many series, there are Matric and Inch series, open, with seals,
and with Metal Shields, the Precision should be ABEC-1, ABEC-2, abec-3,
ABEC-5 and the Clearance should be C2, C0, C3, C4, C5 grade. Borine'
Deep groove ball bearings are made with quality Chrome steel, are with
low Nosie and low vibration value, high speed features, are basis on
good quality and competitive prices.
1. Pay attention to the material of the water tank