| isladelobos |
Sun 12 July 2009 13:55 |
Bearings precision levels
Here in this web see the different precision levels from a bearing,
Are our dual vee bearings a good level?
Quote:
Bearing Precision Levels
Machine tool builders can choose from different levels or classes of bearing precision to meet their specific requirements. Timken tapered roller bearings are available in a complete range of precision classes. This table provides broad guidelines for bearing class selection.
From lowest to highest precision
Class C / 3
* Low precision machines
* Drills
* Conventional lathes
* Milling machines
* Precision gear drives
Class B / 0
* NC lathes
* Milling/boring machines
* Machining centers
Class A / 00
* Grinding machines
* Jig boring machines
* Workpiece spindles (cylindrical grinder)
Class AA / 000
* High accuracy machines
* Precision measuring instruments
* Special applications
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