684 Open Type Miniature Ball Bearing (Alt P/N: AX-4, 618/4, UL409)
684 Open Type Miniature Ball Bearing (Alt P/N: AX-4, 618/4, UL409)
684 Miniature Ball Bearing (Interchange Part No.: AX-4, 618/4, UL409), Open Type, Single Row, Metric Size, High Speed & Low Noise.
Size: 4x9x2.5mm
Inner Diameter (d): 4 mm
Outer Diameter (D): 9 mm
Width (B): 2.5 mm
Bearing Material: GCR15 Bearing Steel
Closures: Open both sides
HS Code: 8482102000
Deep Groove Ball Bearing |
|||||||||||
Part No. |
Dimensions (mm) |
Weight |
Interchange Part No. |
||||||||
d |
D |
B |
Lbs |
ADR |
ISC |
Nachi |
NMB |
NTN |
RMB |
SKF |
|
684 |
4 |
9 |
2.5 |
0.002 |
AX-4 |
684 |
684 |
618/4 |
684 |
UL409 |
618/4 |
Miniature bearings, also known as small bearings or micro bearings, are designed to operate in applications that require compactness, low friction, and high rotational precision. They are characterised by their small size, often with a bore diameter of less than 30mm, and precise construction. Miniature bearings can be used at high speeds and withstand moderate loads.
Applications: Servo & Miniature Motors, Turbo-Machinery Pumps, Scroll Compressors,Surgical Devices, Medical Handpieces & Instruments, Pulmonary Assist Devices, Aircraft & Spaceflight, Flow Meters, Fuel Controls, Gimbals, Slip Rings.
All the bearings we are offering are direct factory price, fast delivery, perfect quality. For more bearings, please feel free to mail us at sales@partsservicesupply.com or contact us by Wechat or Whatsapp at +8618062246726.
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