NNC 4948 CV
Precision cylindrical roller bearing > Double row full loaded cylindrical roller bearing
NNC 4948 CV - Double row full loaded cylindrical roller bearing - Precision cylindrical roller bearing
| Product model | NNC 4948 CV |
|---|---|
| d | 240 mm |
| D | 320 mm |
| B | 80 mm |
| Limiting speed | 1100 r/min |
| Reference speed | 850 r/min |
| d1 | ≈271mm |
| D1 | ≈291mm |
| 外圈润滑槽宽度(b1) | 8mm |
| 润滑孔直径（外圈）(K) | 4mm |
| 倒角尺寸 （开型轴承）(r1,2) | min.2.1mm |
| 轴挡肩直径(da)min. | min.251mm |
| 轴挡肩直径(das) | 261mm |
| 轴承座挡肩尺寸(Da) | max.308mm |
| 倒角半径(ra) | max.2mm |
| Fatigue load limit(Pu) | 173kN |
| 计算系数(kr) | 0.25 |
| Weight轴承 | 18.5kg |
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NNC 4948 CV / Double row full loaded cylindrical roller bearing / Precision cylindrical roller bearing