617/4 674 Minature Deep Groove Ball Bearings 4mm X 7mm X 2 mm Thin Section Robot Bearings
617/4 674 Minature Deep Groove Ball Bearings 4mm X 7mm X 2 mm Thin Section Robot Bearings Open Type
The 674 miniature deep groove ball bearing, with dimensions of 4mm inner diameter × 7mm outer diameter × 2 mm 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 | |
674 Ball Bearings 4X7X2 mm Specifications & Dimensions
| Universal | 674 |
| 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) | 4 |
| Outer Dimension D(Ø)(mm) | 7 |
| Width B (or T)(mm) | 2 |
| Lubrication | Oil or Grease |
| Load Direction | Radial |
| Specifications/Environment | Standard |
| Number of Raceway Ring Rows | Single Track |
| Size Standards | Metric Series |
The 674 miniature deep groove ball bearing is widely used across various specialized fields due to its compact size and high precision. Application areas include:
1. Consumer Electronics and Office Equipment:
Printers/Fax Machines: Acts as a precision transmission component, supporting high-speed and low-noise operation.
Micro Motors: Including motors in drones and hard drives, utilizing its high-speed rotation and low friction characteristics.
2. Precision Instruments and Industrial Equipment:
Testing Equipment: Such as centrifuges and optical instruments, relying on its high precision and stability.
Automation Equipment: Applied in robotic joints and precision transmission systems of 3D printers.
3. Automotive and Transportation:
Automotive Motors: Like fan motors and turbochargers, meeting requirements for heat resistance and long service life.
Reduction Gears: Achieving efficient power transmission in vehicle-mounted devices.
This bearing type offers versatile solutions across a broad range of demanding applications, ensuring reliability, precision, and efficiency in everything from consumer electronics to specialized medical and model equipment.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.