深沟球轴承
深沟球轴承是滚动轴承中应用最广泛、产量最高的品类，其结构简洁紧凑，可同时承受径向载荷和双向轴向载荷，兼具高转速、低噪音、易维护的核心优势，被誉为工业传动系统的“通用传动基石”，覆盖从微型电子设备到大型工业机械的全场景适配
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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 |
|---|---|---|---|---|---|---|---|
| 637/4X1-2Z | 4 mm | 8 mm | 3 mm | - N | - N | - rpm | - rpm |
| 637/5X2-2Z | 5 mm | 8 mm | 4 mm | - N | - N | - rpm | - rpm |
| 63701X3 | 12 mm | 17 mm | 4.5 mm | - N | - N | - rpm | - rpm |
| 63701X3-2Z | 12 mm | 17 mm | 4.5 mm | - N | - N | - rpm | - rpm |
| 63702X3 | 15 mm | 20 mm | 4.5 mm | - N | - N | - rpm | - rpm |
| 63702X3-2Z | 15 mm | 20 mm | 4.5 mm | - N | - N | - rpm | - rpm |
| 63703X1 | 17 mm | 22 mm | 5 mm | - N | - N | - rpm | - rpm |
| 63703X1-2Z | 17 mm | 22 mm | 5 mm | - N | - N | - rpm | - rpm |
| 63703X1-Z | 17 mm | 22 mm | 5 mm | - N | - N | - rpm | - rpm |
| 63704X1 | 20 mm | 25 mm | 5 mm | - N | - N | - rpm | - rpm |
| 63704X1-2Z | 20 mm | 25 mm | 5 mm | - N | - N | - rpm | - rpm |
| 63704X1-Z | 20 mm | 25 mm | 5 mm | - N | - N | - rpm | - rpm |
| 638/1 | 1 mm | 3 mm | 1.5 mm | - N | - N | - rpm | - rpm |
| 638/1.5/YA | 1.5 mm | 4 mm | 2 mm | - N | - N | - rpm | - rpm |
| 638/1.5X2 | 1.5 mm | 4 mm | 1.6 mm | - N | - N | - rpm | - rpm |