617/5 675 Minature Deep Groove Ball Bearings 5mm X 8mm X 2mm Thin
Section Robot Bearings
The 675 miniature deep groove ball bearing, with dimensions of 5 mm
inner diameter × 8mm outer diameter × 2mm 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 |
| Lubrication | Grease |
| Load Direction | Radial |
| Specifications/Environment | Standard |
| Number of Raceway Ring Rows | Single Track |
| Size Standards | Metric Series |
The 675 miniature deep groove ball bearing is widely used across
various specialized fields due to its compact size and high
precision. Application areas include:
1. Industrial Manufacturing Equipment
Printing and Packaging Machinery: Supports high-speed rotating components in equipment like
typesetting machines, offset printing presses, gravure printing
machines, and binding machines.
Chemical and Metallurgical Equipment: Used in environments requiring resistance to high temperatures or
corrosion, such as trough reactors, steel rolling equipment, and
belt drying systems.
Precision Machining Equipment: Applied in scenarios demanding high accuracy, such as etching
machines, CNC welding machines, and modular machine tools.
2. Medical and Food Equipment
Medical Devices: Utilized in high-cleanliness environments for miniature
transmission systems in devices like blood analyzers and surgical
instruments.
Food Processing Machinery: Provides reliable operation with rust and corrosion resistance in
plastic drawing machines and cleaning equipment.
3. Automation and Precision Instruments
Robotics and Automation Equipment: Employed in precise transmission parts of industrial robot
joints, sorting screens, spot welders, etc.
Laboratory Equipment: Used in low-vibration transmissions for scientific instruments
like melt index testers and aging furnaces.
4. Household and Small Devices
Power Tools and Home Appliances: Commonly found in the micro motors of products like drills, fan
motors, and washing machines.
Toys and Models: Provides lightweight, low-noise rotation support in
remote-controlled toys and model airplane motors.
Typical Application Examples
Textile Machinery: Achieves stable operation at speeds exceeding 30,000 rpm in
spinning machine spindles.
Medical Devices: Core bearing in blood centrifuges, meeting GMP cleanliness
standards.
3D Printers: Micro-transmission components driving precise positioning of
print heads.
This bearing's ability to meet stringent requirements in terms of
speed, precision, and environmental resistance makes it an
essential component in numerous applications, from heavy industry
and medical technology to consumer electronics and small-scale
devices. Its robust design ensures reliable performance across a
wide range of operational contexts.
