Micro Bearing
Your Professional Micro Bearing Supplier!
Zhejiang Zhongji Changsheng E-commerce Co., Ltd. was established in 2020 and mainly operates a bearing trading platform. The company now covers a full range of bearing and pneumatic component products, with a total of 1.5 million SKUs and a year-round spot inventory value of approximately RMB 20 billion. In 2023, the company's self operated automotive parts business was fully launched, mainly for chassis components such as automotive bearings, ball heads, swing arms, and stabilizer bars, and simultaneously launched a series of pneumatic component products.
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NMB Micro BearingNMB Microbearing is a line of miniature ball bearings manufactured by MinebeaMitsumi Inc., a Japanese company that specializes in precision components.read more
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NSK Micro BearingNSK micro bearings are miniature ball bearings designed to meet the increased demand for miniaturization in various industries.read more
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EZO Micro BearingEZO micro bearings are a type of miniature ball bearing that is designed for applications where space or weight limitations are a concern.read more
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ZJBR Micro BearingZJBR micro bearings are a type of miniature ball bearing that are designed for use in applications that require small and precise movements.read more
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SKF Micro BearingSKF Micro bearing is a miniature-sized bearing designed to operate at high speeds and handle light radial and axial loads.read more
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FAG Micro BearingFAG micro bearings come in a variety of designs and sizes to accommodate different applications.read more
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NTN Micro BearingNTN micro bearings are miniature ball bearings with a diameter of less than 10 mm and a bore diameter of less than 1 mm.read more
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IJK Micro BearingIJK microbearing is a brand of miniature and precision ball bearings produced by IJK Corporation.read more
Why Choose Us
Wide Range of Brands Covered
NSK, SKF, NTN, FAG, INA, KOYO, EZO, NMB, IKO, THK, TIMKNE, NACHI, MCGILL, ELGES, FYH, ASAHI, IJK, EAST, ROLLWAY, SAMICK, HRB, ZWZ, LYC, TR, BUT, ZHBR, YFA, HZY, QCS, and other well-known domestic and foreign brands. The bearing models of major brands are complete, and customers can purchase them in a one-stop manner.
Sufficient supply
The company now covers a full range of bearing and pneumatic components products, with a total of 1.5 million SKUs and a year-round spot inventory value of approximately RMB 20 billion.
High-quality service
We promise to provide genuine guarantee, stable supply, and a complete logistics system to ensure efficient procurement for customers.
Wide range of applications
The products are widely used in many industries such as engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, electricity and railways.

ZJBR Micro Bearing
ZJBR micro bearings are a type of miniature ball bearing that are designed for use in applications that require small and precise movements.
SKF Micro Bearing
SKF Micro bearing is a miniature-sized bearing designed to operate at high speeds and handle light radial and axial loads.
FAG Micro Bearing
FAG micro bearings come in a variety of designs and sizes to accommodate different applications.
Micro Bearing Specification
|
EC |
O.D. SIZE |
Radial |
Mean Diam. |
||
|
Inner |
Outer |
Bore |
O.D. |
||
|
1P |
0 - 18mm |
.00040 |
.00060 |
+.0000 |
+.0000 |
|
(0 - .7086 in.) |
— |
— |
–.0003 |
–.0003 |
|
|
Over 18 - 30mm |
.00040 |
.00060 |
+.0000 |
+.0000 |
|
|
(Over .7086 - 1.1811 in.) |
— |
— |
–.0004 |
–.0004 |
|
|
3P |
0 - 30mm |
.00020 |
.00040 |
+.0000 |
+.0000 |
|
(0 - 1.1811 in.) |
— |
— |
–.0002 |
–.0003 |
|
|
5P |
0 - 30mm |
.00015 |
.00020 |
+.0000 |
+.0000 |
|
(0 - 1.1811 in.) |
— |
— |
–.0002 |
–.0002 |
|
|
7P |
0 - 30mm |
.00010 |
.00015 |
+.0000 |
+.0000 |
|
(0 - 1.1811 in.) |
— |
— |
–.0002 |
–.0002 |
|
|
9P |
0 - 18mm |
.00005 |
.00005 |
+.0000 |
+.0000 |
|
(0 - .7086 in.) |
— |
— |
–.0001 |
–.0001 |
|
|
Over 18 - 30mm |
.00010 |
.00010 |
+.0000 |
+.0000 |
|
|
(Over .7086 - 1.1811 in.) |
— |
— |
–.0001 |
–.00015 |
|
Unique Characteristics of Micro Bearings
Small size
A micro bearing typically has an outer diameter of 1–30 mm, making its compact size crucial for applications in small devices.
01
High precision
These bearings are manufactured to tight tolerances, often within micrometers, ensuring smooth operation and minimal friction.
02
Low friction
The design and materials used in a micro bearing reduce friction, which enhances efficiency and longevity.
03
High-speed capability
A micro bearing can operate at high rotational speeds without significant heat generation or wear, which is essential for many high-performance applications.
04
Sealed or shielded options
Micro bearings can be sealed or shielded to protect against contamination, which extends their lifespan in harsh environments.
05
Support and guidance: Micro bearings can support rotating or linear motion shafts or bearing parts to ensure that they remain stable during operation.
Transmit load: Micro bearings can withstand and transmit loads from rotation or linear motion, ensuring the normal operation of mechanical systems.
Reduce friction: Micro bearings can reduce friction between the shaft and the bearing through the rolling motion of the rolling elements, thereby reducing energy loss and improving system efficiency.
Achieve precise position control: In systems that require precise positioning or control of motion trajectories, micro bearings can provide a stable and controllable motion platform.
Increase equipment life: Micro bearings can reduce wear and fatigue between components in the mechanical system and extend the service life of the equipment.

Application of Micro Bearing
Electronics
Micro bearing play a vital role in various electronic devices such as hard disk drives, printers, and more. They are used to support components like optical lenses, fans, and robotic arms, ensuring smooth operation of the equipment.
Precision Instruments
Micro bearings are critical in precision instruments and experimental equipment. For example, they are applied in optical instruments, laser devices, , measurement instruments, etc., to achieve precise motion control and positioning requirements.
Model Making
Micro bearings are commonly used in model making projects, including model airplanes, ships, trains, etc. They ensure smooth movement of model components, providing a more realistic and fluid operating experience.
Mechanical Equipment
Micro bearings are widely used in various mechanical equipment, such as small power tools, automation equipment, and more. They ensure high-speed operation and stability of the equipment, enhancing production efficiency.
Ordering Process
Consultation and demand analysis
Product selection and confirmation
Order placement and order review
Shipping and logistics tracking
Packaging and Shipping
|
Packaging |
Plastic bag, wooden box |
|
Transportation methods |
Road transport, rail transport, sea transport, air transport |
We're well-known as one of the leading micro bearing manufacturers and suppliers in China. Be free to wholesale high quality micro bearing in stock here and get quotation from our factory. Contact us for more details.
NTN Micro Bearing, EZO Micro Bearing, NSK Micro Bearing