SEGMENT HOLDER FOR ROLLING BEARING, AND ROLLER BEARING

• Main Authors: YAMAGUCHI AKIRA, YABE SHUNICHI
• Format: Patent
• Language: English; Japanese
• Published: 25.08.2016
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To prevent occurrence of collision noise of holder elements and damage of the holder elements, by more reducing gap fluctuation due to heat expansion of the whole holder.SOLUTION: A segment holder for a rolling bearing contains respective specific base resin, reinforced-fiber material and particulate inorganic filler in a specific amount. In the segment holder, a linear expansion coefficient in a direction parallel with the reinforced-fiber material at room temperature is 0.2×10to 1.2×10/°C, a linear expansion coefficient in a direction vertical thereto is 1.3×10to 4.0×10/°C, a tensile strength is 150 MPa or more, and a Charpy impact strength is 4.0 kJ/mor more.SELECTED DRAWING: Figure 2 【課題】保持器全体としての熱膨張による隙間変動をより少なくして、保持器素子同士の衝突音の発生や、保持器素子の破損を防ぐ。【解決手段】それぞれ特定のベース樹脂、強化繊維材及び粒子状無機充填材を特定量含有し、常温での強化繊維材と平行な方向における線膨張係数が０．２×１０−5／℃〜１．２×１０−5／℃、垂直な方向における線膨張係数が１．３×１０−5／℃〜４．０×１０−５／℃であり、引張強度が１５０ＭＰａ以上、シャルピー衝撃強さが４．０ｋＪ／ｍ２以上である転がり軸受用セグメント保持器。【選択図】図２