Deep Groove Ball Bearing
Deep groove ball bearings are the most widely used and high-yield category of rolling bearings. Their structure is simple and compact, and they can withstand both radial and bidirectional axial loads simultaneously. They have the core advantages of high speed, low noise, and easy maintenance, and are known as the key components of industrial transmission systems; Universal Transmission Foundation” , covering full scene adaptation from micro electronic devices to large industrial machinery
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| Part Number | d - Bore | D - Outer Diameter | B - Width | Cr - Dynamic Radial Rating | Cor - Static Radial Rating | Grease lubrication | Oil lubrication |
|---|---|---|---|---|---|---|---|
| 639/3-2Z | 3 mm | 8 mm | 3 mm | — N | — N | — rpm | — rpm |
| 639/3-Z | 3 mm | 8 mm | 3 mm | — N | — N | — rpm | — rpm |
| 639/3 | 3 mm | 8 mm | 3 mm | — N | — N | — rpm | — rpm |
| 639/2.5-2Z | 2.5 mm | 7 mm | 2.5 mm | — N | — N | — rpm | — rpm |
| 639/2.5 | 2.5 mm | 7 mm | 2.5 mm | — N | — N | — rpm | — rpm |
| 639/2-2Z | 2 mm | 6 mm | 2.3 mm | — N | — N | — rpm | — rpm |
| 639/2-Z | 2 mm | 6 mm | 2.3 mm | — N | — N | — rpm | — rpm |
| 639/2 | 2 mm | 6 mm | 2.3 mm | — N | — N | — rpm | — rpm |
| 619/2 | 2 mm | 6 mm | 2.3 mm | 0.33 N | 0.1 N | 86000 rpm | 100000 rpm |
| 619/1.5 | 1.5 mm | 5 mm | 2 mm | 0.19 N | 0.06 N | 110000 rpm | 130000 rpm |
| 618/9 | 9 mm | 17 mm | 4 mm | 1.35 N | 0.66 N | 39000 rpm | 46000 rpm |
| 618/8 | 8 mm | 16 mm | 4 mm | 1.6 N | 0.71 N | 42000 rpm | 50000 rpm |
| 618/7 | 7 mm | 14 mm | 3.5 mm | 1.15 N | 0.51 N | 45000 rpm | 54000 rpm |
| 618/6 | 6 mm | 13 mm | 3.5 mm | 1.1 N | 0.44 N | 48000 rpm | 57000 rpm |
| 628/5-Z | 5 mm | 11 mm | 3.5 mm | — N | — N | — rpm | — rpm |