Roller Bearing

chinacoal03

6300 Series Miniature Deep Groove Ball Bearing

Deep groove ball bearing types

1, single row deep groove ball bearings

2, single row deep groove ball bearings with dust cover

3, with a dust cover, a ring of single row deep groove ball bearings

4, the outer ring on the stopper groove and snap ring of single row deep groove ball bearings

5, deep groove ball bearings ball gap

6, double row deep groove ball bearings

In accordance with the sizes of deep groove ball bearings can be divided into:

(1) miniature bearings ---- nominal diameter size range of 26mm bearings;

(2) small bearing ---- nominal diameter size range of 28-55mm bearings;

(3) small and medium-sized bearings ---- nominal diameter size range of 60-115mm bearings;

(4) large bearing ---- nominal diameter size range of 120-190mm bearings

(5) large bearing ---- nominal diameter size range of 200-430mm bearings;

(6) ---- large bearing diameter size range of 440mm or more bearings.

Shandong China Coal Industrial&Mining Supplies Group Co.,Ltd (hereinafter referred to as china coal) is a group company, which is a collection of e-commerce, machinery manufacturing, software, research and development, modern logistics of large diversified industrial group. The group has 100 million yuan registered capital , with more than 1100 employees.

China coal is a professional manufacturing base of mines support equipment, transport equipment, lifting equipment, spray equipment, drilling equipment, ventilation equipment, lifting equipment and other products, as well as research and development new product and mine construction products with advanced high technology.

In order to development of international trade , expansion overseas market, china coal established international trade branch company and import and export branch company. China coal actively expand foreign trade channels based on a good market image, brand, modern information platforms and capital protection. Based on the trading diversification strategy, the group established a chain loop trading system which is with import and export trade of the mining equipment as a core, the resources and market as the elements. China coal also formed a overseas sales team, that covers English, French, German, Portugal, Italy, Russian, Korean, Japanese, Arabic, and more than 10 language professionals to explore broader international markets on the Internet. At present, the group signed up for "china coal" trademark in the European Union, United States, Russia, United Kingdom, Taiwan, Macao, Singapore, Indonesia, Israel, and other countries, also get the right to use the trademark of the United Kingdom and Taiwan. Hundreds kinds of products such as tunnel boring machine, coal cutter machine etc. is exported more than 140 countries and regions which are the United States, Australia, Germany, Russia, Spain, France, Canada, United Kingdom, Italy, Portugal, Georgia, Austria, and Colombia. China coal is to establish long-term, broader economic and trade cooperation and strategic partnership with a number of large state-owned enterprises and customers, and won the unanimous approval of them.

China coal has succeeded in passing a number of certification systems which are ISO9001, 2008 quality management system certification, United States ANAB management system certification, United Kingdom international authoritative certification bodies UKAS quality management system certification, SGS certification (made in China), Alibaba GIS certification. She has also obtained a variety of honor which are China excellent enterprise of mechanical industry, China equipment manufacturing operation top 10 enterprises, national reputation for quality assured supplier, China credit certification system demonstration unit, national quality trustworthy product for conformity assessment, national consumer satisfaction units, China AAA level quality trustworthy enterprise and Chinese e-commerce company credit rating AAA level credit Enterprise.