5mm bore 617/5 675 ZZ Minature Deep Groove Ball Bearings 5mm X 8mm
X 2.5mm Single Row Shielded Thin Rolling Section Robot Bearings
The 675ZZ miniature deep groove ball bearing, with dimensions of
5mm inner diameter × 8mm outer diameter × 2.5mm width, is renowned
for its compact size, high-speed capability, and low noise
characteristics.
Bearing Number | Boundary Dimensions(mm) | Basic Load Rating(N) | Limiting Speed(rpm) | Reference(kg)
Weight |
| Inner Diameter | Outer Diameter | Width | Chamfer | Dynamic | Static | Grease | Oil |
| d | D | B | B1 | r(min) | Cr | Cor | Non-contact | Wt ≈ |
| 617/3 | ZZ | | 3 | 6 | 2 | 2.5 | 0.1 | 242 | 94 | 60000 | 71000 | 0.00020 |
| 617/4 | ZZ | | 4 | 7 | 2 | 2.5 | 0.1 | 222 | 88 | 54000 | 63000 | 0.00028 |
| 617/5 | ZZ | | 5 | 8 | 2 | 2.5 | 0.1 | 217 | 91 | 49000 | 57000 | 0.00032 |
| 617/6 | ZZ | | 6 | 10 | 2.5 | 3 | 0.1 | 465 | 196 | 43000 | 51000 | 0.00065 |
| 617/7 | ZZ | | 7 | 11 | 2.5 | 3 | 0.1 | 555 | 269 | 40000 | 47000 | 0.00067 |
| 617/8 | ZZ | | 8 | 12 | 2.5 | 3.5 | 0.1 | 515 | 252 | 38000 | 45000 | 0.00075 |
| 617/9 | ZZ | | 9 | 14 | 3 | 4.5 | 0.1 | 920 | 465 | 36000 | 42000 | 0.00140 |
675 ZZ Ball Bearings 5X8X2.5mm Specifications & Dimensions
| Universal | 675 ZZ |
| Type | Deep Groove Ball |
| Inner/Outer Ring/ Ball Material | Chrome Steel |
| Cage Material | Steel/Nylon |
| CageType | Punching |
| Precision | P0,P6 |
| Inner Dimension d(Ø)(mm) | 5 |
| Outer Dimension D(Ø)(mm) | 8 |
| Width B (or T)(mm) | 2.5 |
| Lubrication | Grease |
| Load Direction | Radial |
| Specifications/Environment | Standard |
| Number of Raceway Ring Rows | Single Track |
| Size Standards | Metric Series |
The 675 ZZ miniature deep groove ball bearing is widely used across
various specialized fields due to its compact size and high
precision. Application areas include:
1. Precision Instruments and Medical Equipment
Medical Diagnostic Devices: Used in transmission systems of biomedical signal detection
instruments such as electromyography (EMG) machines and
electrogastrography (EGG) machines.
Laboratory Equipment: Components like sample cups and accessories for testing
instruments.
Precision Instrumentation: Applied in precision control scenarios requiring low noise and
high speed, such as HVAC tools and vacuum systems.
2. Industrial Machinery and Automation Equipment
Small Industrial Equipment: Micro-transmission components in tapping machines, directional
control valves, and electric pumps.
Packaging Machinery and Warehouse Equipment: Lightweight, high-speed rotating structures in packaging
machinery and warehouse equipment.
Automation and Robotics: Low-load, high-precision applications such as model toys, 3D
printing equipment, and robotic joints.
3. Consumer Electronics and Home Appliances
Micro Motor Applications: Utilized in electric tools (e.g., drills, small appliance
motors), cooling fans, etc.
Precision Transmission Systems: Found in smart locks, printers, and other devices requiring
precise transmission.
4. Special Industrial Scenarios
Metallurgical Equipment Auxiliary Components: Suitable for environments requiring high temperature resistance
or dust protection, such as sensor modules in forklifts.
Additional Features: The dust-proof design (indicated by ZZ, denoting double-sided
metal shields) makes it suitable for dusty environments like
agricultural machinery or industrial production lines. Its maximum
speed can reach 49,000 to 57,000 r/min (with grease/oil
lubrication), making it ideal for high-speed micro motors.
This bearing's robust design, combined with its high speed and
precision capabilities, ensures reliable performance in diverse
fields ranging from medical diagnostics and laboratory equipment to
industrial automation and consumer electronics. Its ability to
operate effectively in challenging environments further enhances
its value across multiple industries.
