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Roller bearing lubrication principle with the other consistent lubrication of rolling bearings, roller bearings only relatively poor working conditions, and its ability to obtain performance effectively depends largely on the bearing lubrication. Roller bearing lubrication methods are mainly used grease and oil lubrication. Both grease lubrication grease seal, sealing and lubrication facilities, simple structure, easy to add grease, so long as the working conditions allow, roller bearings are generally lubricated with grease. The cooling effect of strong oil lubrication and bearing away from dirt and moisture. Roller bearings with oil lubrication methods are pressure lubrication, fuel injection lubrication, oil mist lubrication and oil lubrication.
Pressure lubrication is the conventional speed roller bearing most effective lubrication. The oil injection lubrication is a certain pressure through the nozzle mounted on the bearing side sprayed into the interior of the bearing lubrication, generally used in high-speed roller bearing, or pressure lubrication can not meet the cooling requirements of the occasion. Lubrication is spray drying of compressed air containing oil mist sprayed into the bearing for lubrication, using less oil, the role of the air, the cooling effect is very strong, mainly for the rolling speed is high and a large-scale high precision rolling roller bearing, or for the bearing housing is not frequent removal roller bearings. Pressure lubrication and injection lubrication requires installation of inlet and outlet tubing, lubrication pump, oil reservoir, oil cooler and sometimes need, therefore, higher cost, generally less use of roller bearings.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| NU1019 NTN | 95 | 145 | 24 |
| NU2318E NTN | 90 | 190 | 64 |