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Manufacturer spot 8mm12mmG10G28 high precision super precision high quality solid GCR15 bearing steel ball

Bearing steel ball, also known as chromium steel ball, chromium steel ball, ball, mainly used for bearing production assembly, bearing is an important component, has a very critical role.Of course, bearing steel ball is also widely used in various other industry machinery, its main characteristics are high hardness, hrc60-65, wear resistance, long service life.

Application: Gcr15 bearing steel ball is widely used for high-speed and low noise bearing, bicycle, motorcycle, automobile, slide rail, universal ball, l age, electronic industry, also can be used for grinding other media.

Properties: magnetic, ferrite, oil - packed, HRC60-66.

Gcr15 bearing steel ball chemical composition (isi52100)

C

0.95% - 1.10%

Si

0.15% - 0.35%

Mn

0.50% Max.

P

0.025% Max.

s.

0.025% Max.

Cr

1.30% - 1.60%

Connoisseurs tell you what kind of steel ball is good

Bearing steel ball, the key is that there are grades, that is, the bearing steel ball has a lot of precision, according to the national standard GB/ t308-2002 intermediate grade list, divided into G5, G10, G16, G28, G40, G60, G100, G200, G500, G1000, etc..G is the first letter of Grade in English. There are different grades on the surface of the Numbers. The smaller the number, the higher the accuracy and the better the steel ball.High precision is generally used for precision machinery, auto parts, aerospace and other industries with higher requirements, low precision is generally used for grinding, grinding, stirring and other industries.

Professional customer service patience for the majority of customers to answer questions, help customers choose a more suitable for their own products.

Clean closed steel ball production workshop, only to provide customers with more precise quality steel ball!

Strong kangda steel ball factory, the introduction of advanced production equipment, only to produce high-quality steel ball ball!

Adequate supply in one corner of the warehouse

A variety of packaging for your choice:

Foreign customers come to our factory to visit and sign a contract:

                                                                     Little steel balls are useful

Steel ball, also known as steel ball, ball.As a basic part, it is a small round bead, seemingly simple and insignificant, but related to the performance and life of finished parts.From the space shuttle, automobile, wind power generation to the swivel chair, bicycle, mouse and so on that our office staff sit on, there are shadows of steel balls in the production and life from high-tech to ordinary.

What you worry and want to know, we are here to answer one by one for you:

1. How to select steel ball?

(1) if you want high hardness and wear resistance, then choose bearing steel ball, followed by carbon steel ball added fire;

(2) if you want to weld, low hardness, it will be carbon steel ball without fire, commonly known as iron ball;

(3) if you want good anti-rust effect, then the stainless steel ball, 304, 316, 316L, anti-rust effect is enhanced in turn;

(4) if you want to have good anti-rust effect and high hardness, you need the stainless steel ball made of 440 material;

(5) if you want high precision, you should choose high level. The smaller the number, the higher the level, the better the accuracy;

If the above still can not answer your question, or not clear exactly what kind of steel ball, so you can ask our customer service, to clarify your use, our professional staff will give you a professional answer, so that you are satisfied!

2. Quality assurance:

(1) raw material guarantee: wire from large steel mills;

(2) production equipment guarantee: introduce advanced production equipment and testing instruments;

(3) guarantee of technical personnel: more than 10 years of technical personnel 24-hour shift production, control;

(4) scientific and rigorous production management system constraints: strict management, comply with the production system, the responsibility can be traced back;

(5) closed and clean dust-free workshop: guarantee the high-precision production of precision steel balls;

3. About delivery:

(1) send samples by sf express: a small number of samples can be provided free of charge, express pay on delivery;

(2) for shipment under 300kg, use super express/best express/deppon logistics or express/jiayi logistics/shangqiao logistics, etc.;

(3) delivery of more than 300kg by special line logistics, generally to the city logistics, the need to county/district from the delivery can be explained, delivery plus delivery fee;

4. Product price:

We are the manufacturer, we can guarantee to give you a reasonable, real, affordable price, but can not guarantee is lower, conscience trading, after all, a price a goods, we do not want to get orders and the price of the good low pressure, that is irresponsible to you, more end of the loss or you;

What we want to give you is the product that save worry, do not want to let you buy once become enemy, cooperate for the first time just begin!

5. About the invoice:

As a general taxpayer, our company can issue an invoice of 13% value-added tax, which will be sorted out on 20th every month and sent out around 22nd.

6. About packaging:

We have a variety of packaging, woven bags, cartons, pallets, drums, bottles, tons of bags, and so on, according to customer requirements can be customized packaging;

7. About where to ship from:

Our factory is in yuncheng county under the jurisdiction of rural, logistics express are not convenient, so in liaocheng city large logistics park lease large warehouse storage goods, timely delivery for customers;

8. Return and exchange:

If it is our responsibility, the quality is not consistent, our company is responsible for the return and exchange of freight;If it is the responsibility of the buyer, the goods can be returned or replaced without affecting the re-sale, and the round-trip freight shall be paid by the buyer.