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  • Deep groove ball bearings

    Deep groove ball bearings

  • Deep groove ball bearings

    Deep groove ball bearings

  • Deep groove ball bearings

    Deep groove ball bearings

  • Deep groove ball bearings

    Deep groove ball bearings

  • Deep groove ball bearings

    Deep groove ball bearings

  • Deep groove ball bearings

    Deep groove ball bearings

  • Deep groove ball bearings

    Deep groove ball bearings

  • Deep groove ball bearings

    Deep groove ball bearings

Customer case
  • Quality has always been our supplier! Reliable, good quality products, strong development capabilities, timely service in place, it is our quality suppliers. Has been in his home goods, from quality to price, all people are satisfied.
  • Delmar company chairman and president of the American Bearing Association Mr. Haji Muhammad Shahzad Alam
Company profileMORE >>

   China Delmar Bearing Co. ,Ltd  is  located in the beautiful  East of China sea  - No 2, Bei Yang 9 Road, Tou Men Port District ,lin Hai, Taizhou City , Zhejiang Province, covers an area of 60,000 square meters. It is around 7 kms from the Ningbo-Taizhou-Wenzhou Expressway ,10 kms  far from  the taizhou  airport. It is close to the the biggest new seaport in Zhejiang - Tou Men port. Very convenient in sea ,road and air transportation.

  Over 30 years of experience in the bearing industry area, our hard work and efforts have got  the trust from customers in both domestic and overseas. A new brand  in bearing area (DRAM) is rising like a bright star. We are specialized in manufacturing  high-precision, low noise bearings matched with  motors, pumps, compressors, machine tools, automobiles, motorcycles, air conditioners and chemical machinery, we can also manufacture  all types of non-standard bearings. Our products reach above Z3/V3 standard through optimal design, sophisticated technology, advanced equipment, improved means of detection, strict quality assurance system. Delmar Bearing sell well in both domestic and overseas, Favored by both old and new customers.

  Company Philosophy: Strengthen the sense of competition, create a team spirit, your dedication today will get the company brilliant tomorrow .Our company has passed the ISO 9001: 2000 quality system certification and SGS (ROHS) detection. Our company are in the purpose of "quality first,  customer first, integrity-based, best service" ,in the aim of sending customers  zero defect products , adhere to innovative ideas, establish and improve the quality system ,believe  the principle of "customer in my heart, your satisfaction is our eternal pursuit" of the quality policy. We warmly  welcome you to call or come to negotiate business

Bearing origin


China is one of the countries in the world earlier invention of rolling bearings, in ancient China, the structure has long been documented on the axle bearings. And data from archaeological perspective, China's oldest modern rolling bearing structure bearing the prototype, and appeared in 221 BC - 207 BC(Qin) is now Shanxi Yongji County the Xue's Cliff Village. After the founding of New China, especially since the seventies of thelast century, under thestrong promotion of reform and opening up, the bearing industry has entered a new period of rapid development of high quality.

In the seventeenth century, the British design and manufacturing ballbearings C. Vallo, and installed in the car to try and British postal P.Wirth made ball bearings patent. Eighteenth century German publication on ball bearings HR Hertz contact stress papers. Onthe basis of the achievements of the Hertz, R. Striebeck Germany, Sweden,Glenn A. Pam, who have done a lot of testing, the design theory and the development of fatigue life of rolling bearings is calculated to make acontribution. Subsequently, the Russian Petrov NP Newton's law to calculate the viscous friction bearings. British Thor O. Renault were found mathematical analysis, Reynolds equation is derived, from the foundation hydrodynamic lubricationtheory.

The early form of linear motion bearings, placed in a row is a row of wooden skid plate under. This technique might be traced back to the time of the construction of the Great Pyramid of Giza, although there is no clear evidence. Modern linear motion bearings using the same kind of works, but sometimes with the ball instead of rollers. The first sliding and rolling element bearings are made of wood. Ceramic,sapphire or glass are also used, steel, copper, other metals, plastics(such as nylon, bakelite, Teflon and UHMWPE) have been widely used.



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