617/4 674 Minature Deep Groove Ball Bearings 4X7X2 mm Single Row
Radial Open Rolling BearingsThin Section Robot Bearings
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) | 3 |
| Outer Dimension D(Ø)(mm) | 6 |
| 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. Micro Motors and Precision Instruments
The 674, being a miniature deep groove ball bearing, is commonly
used in devices that require high precision and compact size, such
as micro motors, precision instruments, medical devices, electronic
components, and clocks.
2. Industrial Machinery
General Equipment: Used in machinery requiring precise rotational support, including
electric hydraulic lifting platforms, roller conveyors, and
bevelling machines.
Chemical and Pharmaceutical Equipment: Suitable for mixers and reactors where good sealing properties
and strong corrosion resistance are required.
Food Packaging and Inspection: Utilized in beverage production lines and food and drug packaging
machines where cleanliness is crucial.
3. Transportation Equipment
Components related to power generation equipment and air
purification systems may be employed in vehicle transmission
systems or auxiliary equipment.
4. Specialized Industries
Energy and Metallurgy: Used in low-friction support parts in generators and mining
machinery.
Textile and Printing Equipment: Ideal for scenarios requiring high-speed rotation with low noise
levels.
Features and Advantages
The 674 deep groove ball bearing features a compact structure, low
friction, and easy maintenance. It can accommodate both radial and
axial loads, making it suitable for high-speed and low-noise
environments.
This bearing's versatility makes it an essential component across
various industries, providing reliable performance in demanding
applications. Whether in precision-driven sectors like electronics
and medical devices or in heavy-duty industrial settings, the 674
bearing supports efficient operation while maintaining high
standards of quality and durability.
