Thermal Behavior of an Improved Face-Grinding Spindle: Water-Lubricated Hydrostatic Thrust Bearing Decreases Temperature Rise and Increases Axial Stiffness
Abstract:Axial thermal deformation and axial stiffness are main technical indicators to affect manufacturing accuracy of face-grinding spindle. However, the face-grinding spindle supported by rolling bearings lubricated with grease has a relative disadvantage in respect of temperature rise, axial stiffness and rotational accuracy. To overcome this issue, this study proposes a novel face-grinding spindle supported by a combined bearings, which include a water-lubricated hydrostatic thrust bearing and two rolling bearing… Show more
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