Needle roller bearing
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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 |
|---|---|---|---|---|---|---|---|
| NA4844A/YA4 | 220 mm | 270 mm | 50 mm | - N | - N | - rpm | - rpm |
| NA4856A | 280 mm | 350 mm | 69 mm | - N | - N | - rpm | - rpm |
| NA4900A | 10 mm | 22 mm | 13 mm | - N | - N | - rpm | - rpm |
| NA4901A | 12 mm | 24 mm | 13 mm | - N | - N | - rpm | - rpm |
| NA4902A | 15 mm | 28 mm | 13 mm | - N | - N | - rpm | - rpm |
| NA4903A | 17 mm | 30 mm | 13 mm | - N | - N | - rpm | - rpm |
| NA4903AS2 | 17 mm | 30 mm | 13 mm | - N | - N | - rpm | - rpm |
| NA4904A | 20 mm | 37 mm | 17 mm | - N | - N | - rpm | - rpm |
| NA4904A/YA2 | 20 mm | 37 mm | 17 mm | - N | - N | - rpm | - rpm |
| NA4905A | 25 mm | 42 mm | 17 mm | - N | - N | - rpm | - rpm |
| NA4906A | 30 mm | 47 mm | 17 mm | - N | - N | - rpm | - rpm |
| NA4907A | 35 mm | 55 mm | 20 mm | - N | - N | - rpm | - rpm |
| NA4908A | 40 mm | 62 mm | 22 mm | - N | - N | - rpm | - rpm |
| NA4908X1A | 40 mm | 65 mm | 22 mm | - N | - N | - rpm | - rpm |
| NA4909A | 45 mm | 68 mm | 22 mm | - N | - N | - rpm | - rpm |