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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.