Ningbo Demy (D&M) Bearings Co., Ltd. 宁波得明（D&M）轴承有限公司
Chinese manufacturer of high-precision ball and roller bearings for motors, automotive, and industrial motion applications.
Ningbo Demy (D&M) Bearings Co., Ltd. is a Chinese manufacturer and exporter of ball and roller bearings, specializing in research and development of high-precision, low-noise, long-life bearings for motion and power transmission applications. Based in Ningbo, Zhejiang Province, the company produces a broad portfolio of bearing types including deep groove ball bearings, roller bearings, automotive bearings, motor bearings, and EMQ (electric motor quality) bearings. According to the company, it can manufacture more than 12,000 specifications across nine bearing types and five precision classes in accordance with international, national, and customer-specific standards, with bore diameters ranging from 5 mm to 6,300 mm. Its affiliated manufacturing operation holds an ISO/TS 16949 quality system certificate for automotive production and runs automated grinding and assembly lines with substantial annual production capacity.
Demy bearings serve more than 60 industry segments, including railway, automobile, metallurgical, heavy machinery, petrochemical, and military applications. Low-noise, high-precision motor-quality bearings are essential components in the electric motors, gearboxes, joints, and rotating assemblies used throughout robotics and automation equipment, where bearing accuracy and reliability directly affect motion performance and service life. The company markets its products internationally under the Demy and BMT brands, supplying OEMs and distributors that require consistent quality bearings for motion systems.
Primary type & automation activities this supplier delivers:
Deep Groove Ball Bearings
High-precision, low-noise deep groove ball bearings for motors and rotating assemblies.
Motor (EMQ) Bearings
Electric motor quality (EMQ) bearings engineered for low noise and long service life.
Roller Bearings
Roller bearings for heavy-load motion and power transmission applications.
More related news
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
-
11
China’s Dexterous Hand Industry, 2026 Part 3 — The Players RobotToday · Sep 06, 2026
-
12
China’s Dexterous Hand Industry, 2026 Part 1 — The Demand Picture RobotToday · Sep 04, 2026
-
13
WRC 2026 Core Components: 137 Robot Parts Suppliers RobotToday · Aug 28, 2026
-
14
WRC 2026 Exhibitor Map: 248 Robotics Companies Mapped RobotToday · Aug 26, 2026
-
15
Introduction to Robotics J. J. Craig — RSF Top 10 Robot Education Textbooks · No. 6 RobotToday · Jul 31, 2026
-
16
Mechatronics W. Bolton — RSF Top 10 Robot Education Textbooks · No. 1 RobotToday · Jul 27, 2026
-
17
Why the Tesla Supply Chain for Optimus is Consolidating in Chinese Yangtze River Delta RobotToday · Dec 03, 2025
-
18
How Tuopu Became a Core Player in Tesla’s Emerging Humanoid Robot Ecosystem RobotToday · Nov 19, 2025
-
19
How Sanhua Became Tesla’s Key Humanoid Robot Actuator Candidate: Inside the Optimus Supply Chain RobotToday · Nov 17, 2025
-
20
CATL's Strategic Stake in Galbot: A New Blueprint for the Humanoid Robotics Race? RobotToday · Oct 01, 2025
Contact Ningbo Demy (D&M) Bearings Co., Ltd.
WEBSITE
https://www.demy-bmt.com/HEADQUARTERS
China
Company Facts
Founded
-
Primary Role
Component Supplier
Company Size
-
Primary Region
Asia-Pacific
Annual Sales
-
Funding Stage
-
Funding Total
-
Certifications & Memberships
