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Standard
GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN / VDEh
Material
GCr15、5200、100Cr6、SUJ2
Inner ring diameter
1mm-3mm
Outer ring diameter
3mm-10mm
Weight
0.03g-1.65g
Brand
QIBR/OEM/Neutral
Package
QIBR/Standard Industrial Package/OEM
Applications
Machine tool spindle, centrifuge, booster pump, oil pump, blower, various gearboxes, laboratory equipment
| NO. | Product | Product Number | Basic dynamic load rating | Basic static load rating | Inner diameter (d) | Mass | Outer diameter (D) | Width (B) |
|---|---|---|---|---|---|---|---|---|
| 1 |
|
681 | 82 N | 21 N | 1 mm | 0.03 g | 3 mm | 1 mm |
| 2 |
|
691 | 120 N | 30 N | 1 mm | 0.11 g | 4 mm | 1.6 mm |
| 3 |
|
682 | 144 N | 40 N | 2 mm | 0.15 g | 5 mm | 1.5 mm |
| 4 |
|
682 ZZ | 144 N | 40 N | 2 mm | 0.2 g | 5 mm | 2.3 mm |
| 5 |
|
692 | 281 N | 79 N | 2 mm | 0.28 g | 6 mm | 2.3 mm |
| 6 |
|
692 2RS | 281 N | 79 N | 2 mm | 0.35 g | 6 mm | 3 mm |
| 7 |
|
692 ZZ | 281 N | 79 N | 2 mm | 0.35 g | 6 mm | 3 mm |
| 8 |
|
602 | 328 N | 103 N | 2 mm | 0.6 g | 7 mm | 2.8 mm |
| 9 |
|
602 2RS | 328 N | 103 N | 2 mm | 0.6 g | 7 mm | 3.5 mm |
| 10 |
|
602 ZZ | 328 N | 103 N | 2 mm | 0.6 g | 7 mm | 3.5 mm |
| 11 |
|
683 | 264 N | 90 N | 3 mm | 7 mm | 2 mm | |
| 12 |
|
683 2RS | 264 N | 90 N | 3 mm | 0.45 g | 7 mm | 3 mm |
| 13 |
|
683 ZZ | 264 N | 90 N | 3 mm | 0.45 g | 7 mm | 3 mm |
| 14 |
|
693 | 474 N | 144 N | 3 mm | 0.6 g | 8 mm | 3 mm |
| 15 |
|
693 2RS | 474 N | 144 N | 3 mm | 0.8 g | 8 mm | 4 mm |
| 16 |
|
693 ZZ | 474 N | 144 N | 3 mm | 0.8 g | 8 mm | 4 mm |
| 17 |
|
603 | 230 N | 151 N | 3 mm | 0.84 g | 9 mm | 3 mm |
| 18 |
|
603 ZZ | 230 N | 151 N | 3 mm | 1.13 g | 9 mm | 5 mm |
| 19 |
|
623 | 536 N | 175 N | 3 mm | 1.45 g | 10 mm | 4 mm |
| 20 |
|
623 2RS | 536 N | 175 N | 3 mm | 1.65 g | 10 mm | 4 mm |
| 21 |
|
623 ZZ | 536 N | 175 N | 3 mm | 1.65 g | 10 mm | 4 mm |
Features and advantages of QIBR miniature deep groove ball bearings
QIBR miniature deep groove ball bearings are engineered to address critical operational demands in various industrial fields, offering the following key advantages:
1. Miniaturization
The outer dimensions of miniature deep groove ball bearings are extremely small, with inner and outer diameters ranging from a few millimeters to just over ten millimeters. They are widely used in compact, high-precision devices where space is limited.
2. Low noise and high speed
Manufactured with high-precision processes, these bearings exhibit low operational noise. Their design allows for stable operation at high speeds, making them ideal for devices requiring high rotational speeds.
3. Low friction and long service life
With a compact internal structure, these bearings minimize friction between the rolling elements and the inner and outer rings, reducing energy loss and extending service life.
4. Material versatility
QIBR miniature deep groove ball bearings are available in various materials, such as stainless steel, carbon steel, and ceramic, to meet the demands of different environments.
Performance enhancements for QIBR miniature deep groove ball bearings
1. Lubrication optimization
Advanced lubricants, such as synthetic or nano-lubricants, can reduce wear and friction, enhancing overall efficiency and durability. Proper application techniques further ensure optimal performance.
2. Raceway optimization
Precision machining of the raceway geometry, along with improved surface finish, minimizes frictional losses and enhances operational efficiency.
3. Enhanced rolling elements
Utilizing high-precision rolling elements, such as ceramic balls, improves surface hardness and reduces wear, resulting in superior performance under demanding conditions.
4. Corrosion resistance
For applications in aggressive environments, materials such as stainless steel, corrosion-resistant coatings, or surface treatment technologies can significantly improve durability.
5. Thin-walled design
To accommodate even smaller spaces, these bearings are designed with thin walls. Using thinner materials while maintaining strength and load capacity achieves an optimal balance of size and weight.
Primary application fields of QIBR miniature deep groove ball bearings
1. Mobile phones and computers
These bearings are commonly used in rotating components of electronic devices, such as motors, fans, ball rollers, and drive systems in smartphones, laptops, mice, and keyboards.
2. Cameras
Miniature bearings play a key role in auto-focus systems and image stabilization mechanisms within cameras.
3. Precision instruments and optical devices
QIBR miniature bearings are frequently used in microscopes, telescopes, scanners, and other optical instruments, ensuring smooth operation in rotating components, motor drives, and other precision mechanisms.
4. Medical equipment
These bearings are critical in high-precision medical devices such as surgical robots, imaging systems (e.g., CT and MRI), and dental tools, including drills, due to their accuracy and reliability.
5. Power tools
Miniature deep groove ball bearings are used in motors and motion systems of power tools, ensuring smooth operation and extended service life.
6. Dental tools
With their high precision, compact size, high-speed capability, and ability to handle significant radial loads, these bearings are ideal for use in dental drills.
