| 摘要 |
PURPOSE: A bolster for textile machinery in which high intensity insert is installed is provided to improve productivity as the bolster is applicable to spindles of various textile machineries which are expedited to 25,000 rpm or over. CONSTITUTION: A bolster (100) for textile machinery in which a high intensity insert is installed comprises a casing in a cylindrical shape installed to surround a blade (2) of a spindle (50); a roller bearing (4) which is combined with the blade being inserted in an upper part of the casing; a support metal bearing (5) which supports a lower part of the blade being installed in the lower part of the casing; an insert (7) which is inserted between the blade and the casing and in which a spiral groove is formed; a guide metal bearing (8) inserted between the blade and the insert; and an oil dumping spring (9) installed between the casing and the insert. In the bolster (100), a material of the insert is SCM 440 and rigidity has a range HRC 25-35 as treated with heat.
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