The NN 30 Series double row cylindrical roller bearings provide a good balance between load capacity, stiffness, and speed. These bearings have three flanges on the inner ring and no flanges on the outer ring. This allows the bearings to handle axial movement of the shaft in both directions. The separable design makes it easier to install and remove the bearings, especially when both rings need to have an interference fit to handle the loads. The tapered bore also helps with setting the right amount of clearance or preload when putting the bearings in.
SPECIFICATIONS
| Inner Diameter | 75 mm | Number of Rows | Double Row | |
| Outer Diameter | 115 mm | Cage Material | Non-Metallic | |
| Width | 30 mm | Bearing Material | Steel | |
| Dynamic Load Rating | 96.8 kN | Seal Type | None On Both Sides | |
| Static Load Rating | 150 kN | Clearance | C1 | |
| Fatigue Load Limit | 17.3 kN | Precision | Class SP | |
| Reference Speed | 7 500 rpm | Min Temperature | -40 °C | |
| Limiting Speed | 8 500 rpm | Max Temperature | +120 °C | |
| Rolling Element | Roller | Size Standard | Metric System | |
| Bore Type | Tapered 1:12 | Mass | 0.97 kg |
FEATURES AND BENEFITS
- High rigidity and high running accuracy.
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Able to handle very heavy radial loads, suitable for applications with significant load demands.
- Accommodate axial displacement in both directions to minimize noise, vibration and heat generation.
Yes, miniature ball bearings are designed to handle high rotational speeds, making them ideal for devices and equipment that require rapid movement.
US 17494 
GB 12929 
CA 10841 
AU 4954 
IE 3440 
BR 1033 
NZ 975 
SG 865 
