617/7 677 ZZ Minature Deep Groove Ball Bearings 7mm X 11mm X 3mm
Thin Section Robot Bearings
The 677 ZZ miniature deep groove ball bearing, with dimensions of
7mm inner diameter × 11mm outer diameter × 3mm 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 |
677 ZZ Ball Bearings 7X11X3mm Specifications & Dimensions
| Universal | 677 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) | 7 |
| Outer Dimension D(Ø)(mm) | 11 |
| Width B (or T)(mm) | 3 |
| Lubrication | Grease |
| Load Direction | Radial |
| Specifications/Environment | Standard |
| Number of Raceway Ring Rows | Single Track |
| Size Standards | Metric Series |
The 677 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 Miniature Equipment
Models and Toys: Suitable for remote control cars, model airplanes, mini robots,
and other scenarios requiring lightweight, low friction, and high
precision.
Miniature Motors: Used in drone motors, small fans, electric toothbrushes, and
other small motor transmission systems, supporting high-speed
operation.
2. Medical and Instrumentation
Medical Devices: Such as the rotating components of electrocardiographs,
electromyographs, and other precision instruments, relying on their
low noise and stable performance.
Laboratory Equipment: Centrifuges, mixers, and other applications requiring dust
protection.
3. Industrial Automation
Small Mechanical Transmissions: Such as sensor drive shafts on automated production lines, paper
feed mechanisms in printers/copiers.
This summary highlights the versatility and suitability of the
617/7 ZZ bearing across various fields, from ensuring precision in
miniature devices and medical equipment to providing reliable
performance in industrial automation settings. Its compact size,
combined with dust protection and high-speed capabilities, makes it
an essential component in numerous applications.
