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1.INA bearings speed and temperature rise
With the development of science and technology, machine tool spindle speed high speed range increased, therefore, the INA bearing high speed running stability demands more and more. Machine tool spindle bearings are important factors for limit bearing speed of temperature rise. Typically, proper selection of bearing type, tolerance class, how it is configured, clearance (preload), lubricant and lubrication method, to a certain extent improve high-speed rolling bearing performance.
2.INA the life of bearings and bearing capacity
General machine tools, mainly refers to the life of the spindle components maintain the precision of the spindle using the term, thus, INA bearing spindle components of precision performance to meet life's demands. For heavy-duty machine tools or heavy cutting machine tool, you should first consider the carrying capacity of the bearings.
3.INA the stiffness of the bearing and vibration resistance
To ensure the machine processing quality, must have sufficient rigidity of the spindle system, or a more complex mapping error will occur even flutter. Vibration resistance refers to the ability to resist forced vibration and self-excited vibration. Vibration resistance depending on the spindle and spindle components bearing stiffness and damping. Spindle of preloaded rolling bearing can effectively increase the rigidity of the system.
4.INA bearing noise
High speed grinder, grinding head bearing noise is the main ingredient in the overall noise level should use low-noise rolling bearings.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-30215 NTN | 75 | 130 | 25 |
| 33015U NTN | 75 | 115 | 31 |