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アメリカ合衆国
07:54:55 GMT+0000 (Coordinated Universal Time)
NNU4920-S-K-M-SP
Cylindrical roller bearing
円筒ころ軸受 NNU49..-S-K-M-SP, 主寸法は DIN 5412-4, 自由側軸受, 複列, テーパー穴、テーパー比 1:12, 分離型, 保持器付き, すきまレンジ縮小, 高精度
交換
NNU4920SK.M.SP
商品情報
Main Dimensions & Performance Data
| d | 100 mm | Bore diameter |
| D | 140 mm | Outside diameter |
| B | 40 mm | Width |
| Cr | 128,000 N | Basic dynamic load rating, radial |
| C0r | 255,000 N | Basic static load rating, radial |
| Cur | 33,500 N | Fatigue load limit, radial |
| nG Grease | 5,700 1/min | Limiting speed for grease lubrication |
| nG Oil | 6,700 1/min | Limiting speed for oil lubrication |
| ≈m | 1.855 kg | 重量 |
Mounting dimensions
| da | 112 mm | Diameter shaft shoulder |
h12 | Diameter shaft shoulder tolerance | |
| Da | 129 mm | Diameter of housing shoulder |
H12 | Diameter of housing shoulder tolerance | |
| ra1 max | 1 mm | Maximum recess radius |
Dimensions
| r1 min | 1.1 mm | Minimum chamfer dimension |
| F | 113 mm | Raceway diameter inner ring |
| ns | 6.5 mm | Width of lubricating groove |
| ds | 3.2 mm | Diameter lubrication hole |
| s | 2 mm | Axial displacement |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 150 °C | Operating temperature max. |
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