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1,The dynamic and static SKF bearings the depth of cavity structure suitable for machine tool spindles: high speed light load, such as M1432 cylindrical grinding, grinding tools, MGA6025.
2, the annular orifice throttle depth cavity hybrid SKF bearing: suitable for machine tool spindle to medium load, such as MG1432 cylindrical grinding, flat grinding, MM7150 M1080 centerless grinding, roller mill etc..
3, pin type internal feedback hydrostatic bearing for machine tool spindle SKF: in a large range of load and speed.
4, the conical hydrostatic bearing: suitable for high speed internal grinding spindle system (such as the 2110 internal grinding), electric spindle, and the inner raceway grinder.
Matters needing attention
1, the normal use of one year after the replacement of the 2# spindle oil and coarse and fine filter.
2, normal use of the pump to add oil to 3 layers of silk cloth filter added.
3, spindle pulley, wheel loading and unloading must be in the pump working condition. The spindle in the hydrostatic oil floating state. So as not to damage the spindle and dynamic and static pressure bearing SKF.
4, the grinding wheel spindle work before the observation station pressure and static pressure is in the standard range of grinding head.
5, equipment downtime, you must first stop the grinding head motor, the grinding wheel stops, then turn off the pump station, or easy to damage the grinding head.
6, for any parts of pump station, you must first remove the high-pressure oil inlet hose joint, replacement after the spare parts, oil self circulation in 15 - 20 minutes before the tubing grinding head, thus ensuring the grinding head spindle oil into is a super clean spindle oil filter. It can prolong the service life of dynamic and static pressure spindle.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| NNU4944 NTN | 220 | 300 | 80 |
| NNU4940K NTN | 200 | 280 | 80 |