1) Metric size and inch size 
2) Large range 
3) Good quality and comptitive price

Product Parameters

About us
Ningbo Demy (D&M) Bearings Co., Ltd. was established in 2005 and  one of leading ball & roller bearing manufacturers & belt, chain, auto-parts exporters in China. It is specialized in research and development for various kinds of high precision, non-noise, long-life bearings, high quality chains, belts, auto-parts and other machinery&transmission products. At present, demy has more than 500 employees and produces 50 million sets of bearings annually. Due to our many years of experience and our own manufacturing in yuyao china bearing town , DEMY has already served thousands of customers around the world.we participate in major professional exhibitions at home and abroad every year.




Good quality control and competitive prices
Each goods is processed by our internal quality management (ISO 9001:2000) with the corresponding testing, such as noise testing, checks of grease application, sealing checks, hardness degree of the steel as well as measurements.

Adherence to delivery dates, flexibility and reliability have had strong foundations in the corporate philosophy for years now.

DEMY is good at offering customer-specific quality at attractive and competitive prices.



Why  Choose  US ?
1. History : DEMY(D&M)BEARING CO., LTD is located in Hemudu Culture Ruins of Ningbo China which has 7000-year-old history. It is specialized in research and development for various kinds of high precision, non-noise, long-life bearings, high quality chains, belts, auto-parts and other machinery&transmission products.

2. Enterprise Scale:  The company has manufacturing space of more than 30,000 square meters and has 20 sets of automatic gringding production lines, automatic assembly lines with the annual production capacity of 25 millions sets.

3. Export experience :  Our company is one of the biggest bearing manufacturers and exporters in china. Our products are sold all over the world, include Europe, North America, the Middle East, Southeast Asia and South America etc.


4. Brand :  We have two independent brands : BMT ; Luman bearing. OEM also is accepted.

5 . Quality Control :  Each goods is processed by our internal quality management (ISO 9001:2000) with the corresponding testing, such as noise testing, checks of grease application, sealing checks, hardness degree of the steel as well as measurements.Adherence to delivery dates, flexibility and reliability have had strong foundations in the corporate philosophy for years now.

6. Service :  High quality, good credit and excellent service are the tenet of our company. Customers'satisfaction is our lifeline, as well as our highest honor. We will do our best to meet your requirements, and will do better in the future.