634 ZZ Mini Ball Bearing 4x16x5 Shielded
634 ZZ ball bearing is a small rolling bearing that uses balls to separate two “races” or bearing rings. The main difference between these bearings and many others is their small size, allowing them to be used in smaller and more compact light-duty applications.
The combination of balls and bearing rings helps reduce surface contact and rotational friction on the plane of motion to accommodate axial loads.
Ball bearings play an important role in facilitating smooth and efficient motion in high-speed applications. It also help to extend the life of equipment. They are also effective space savers in compact applications.
● ISO standard interchangeable dimensions
● Electric Motor Quality (EMQ)
● Shield(s) provides some contamination protection and lubricant retention
● Used in high speed applications like electric motors
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| Spec | 634 ZZ |
| Item | Miniature Ball Bearings |
| Type | Shielded |
| Bore Dia. | 4 mm |
| Outside Dia. | 16 mm |
| Width4 | 5 mm |
| ABEC Tolerance | 3 |
| Dynamic Load Capacity (kN) | 0.3kN |
| Static Load Capacity (kN) | 0.68kN |
| Max. RPM | 44,000RPM |
| Temp. Range (℃) | -40~120℃ |
| Material | Steel |
| Shield Material | (SPCC) Mild steel ( SPCC) |
| Lubrication | Grease |
634 ZZ miniature ball bearing is made of chrome steel and has two shields to keep dirt out. It has a 4mm bore and a 16mm outer diameter. The width is 5mm and the depth is 2.5mm.
Yuanhe’s deep groove ball bearings provide reliable performance in a wide range of applications and conditions. With super-finished raceways and controlled geometry, our premium designs help ensure consistent quality.
Other types of ball bearings are also available: 695 2RS, 694 2RS, 6900 2RS. If you’re interested in our procucts, please feel free to contact us.
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