| 摘要 |
PURPOSE:To facilitate the discharge of any metal stuck to the unit in the caption at the time of amintenance by providing holes which pierce the flange of each housing from the outside to the inside thereof and communicate with axial grooves or cutouts which communicate with the grooves. CONSTITUTION:Circumferential grooves 14, 24, axial grooves 15, 25, and radial holes 16, 26 provided on the inner radial surfaces 11a, 21a of the bearing parts 11, 21 of housings 10, 20 and the holes 17, 27 provided on the flange 13, 23 of the housings 10, 20 and are communicated with the outside. The metal which is fixed to a bearing unit at the same time when it is pulled up from a molten zinc bath can, therefore, be discharged easily through the grooves 14, 24; 15, 25 and holes 16, 26; 17, 27.
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