685 ZZ Minature Deep Groove Ball Bearing 5*11*3mm Chrome Steel SUNBEARING
- Model
- 685
Item specifics
- Color
- Silver
- Inner Diameter
- 5 mm
- Outer Diameter
- 11mm
- Width
- 3mm
Review
Description
685 ZZ Minature Deep Groove Ball Bearing 5*11*3mm Chrome Steel SUNBEARING
|
Bore diameter:
|
5 mm
|
Basic dynamic load rating
|
0,715 kN |
|
Outside diameter:
|
11 mm
|
Basic static load rating
|
0,281 kN |
|
Overall width:
|
3 mm
|
(Grease) Lubrication Speed
|
45 000 r/min |
|
Rows of Balls
|
Single
|
(Oil) Lubrication Speed
|
53 000 r/min |
|
Outer ring type:
|
Unsplit
|
Load Direction
|
Radial |
|
Radial clearance class
|
CN (Standard)
|
Mass
|
0,0012 Kg |
|
Closure type:
|
ZZ
|
Precision
|
Grade 0 |
Material | Chrome Steel | r min | 0,15 mm |
Cage Material | Sheet Steel | da min | 6,2 mm |
Type of lubrication: | Grease Lubrication | Da max | 9,8 mm |
685 Bearing Short Description
- Miniature ball bearing with smallest dimensions
- Suitable for high radial loads and light axial loads in both directions
- Suitable for high running accuracy, quiet running, and very high speeds
- Seal: contact lip cover on both sides made of metal (ZZ) for high sealing effect
- 685 bearing has good fixed bearing property, but can also be used as a floating bearing, each in both directions
Reasons for The Failure of Miniature Bearings
About 40% of the failures of ball miniature bearings are caused by dust, dirt, debris contamination, and corrosion.
Pollution is usually caused by incorrect use and poor use environment. Therefore, it can also cause torque and noise problems. However, miniature bearing failure caused by environment and pollution can be prevented. And the cause of such failure can be determined through simple visual observation.
As long as the use and installation are reasonable, the erosion of miniature bearings is easy to avoid. Therefore, the feature of erosion is that there are indentations on the raceway of the miniature bearing ring caused by impact load or incorrect installation. Erosion usually occurs when the load exceeds the yield limit of the material.
If the installation is not correct so that a certain load traverses the miniature bearing ring, corrosion will also occur. The pressure pits on the miniature bearing ring can also generate noise, vibration, and additional torque.
685 Bearing Application
Office equipment, micro motors, instruments, laser engraving, small clocks, soft drives, pressure rotors, dental drills, hard disk motors, stepping motors, video recorder drums, toy models, computer cooling fans, currency counters, fax machines, and so on related fields.
