BEARING DEVICE

• Main Author: YOSHIOKA YUICHI
• Format: Patent
• Language: English; Japanese
• Published: 14.12.2017
• Subjects: BEARINGS; BLASTING; CYLINDERS; 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; PISTONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SEALINGS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a vehicle bearing device which can inhibit misalignment between an axis of an inner ring and an axis of a sealing device.SOLUTION: A bearing device (3) includes an inner ring (32), an outer ring (31), rolling elements (33a, 33b), and a sealing device (34). The inner ring (32) includes first and second inner ring members (321, 322). The sealing device (34) adheres to an outer peripheral surface of the inner ring (32) to seal an annular recessed part (323). The sealing device (34) has a core grid (341) and an elastic part (342). The core grid (341) fits in an outer peripheral surface of the first inner ring member (321). The elastic part (342) is adhered to the core grid (341). The elastic part (342) is disposed in the annular recessed part (323). Both axial end surfaces of the elastic part (342) contact with both side surfaces of the annular recessed part (323). An entire part of an inner peripheral surface of the elastic part (342) faces a bottom surface of the annular recessed part (323) forming a space (C) therebetween.SELECTED DRAWING: Figure 3 【課題】内輪の軸心と密封装置の軸心とのずれを抑制することが可能な車両用の軸受装置を提供する。【解決手段】軸受装置（３）は、内輪（３２）と、外輪（３１）と、転動体（３３ａ，３３ｂ）と、密封装置（３４）とを備える。内輪（３２）は、第１及び第２内輪部材（３２１，３２２）を含む。密封装置（３４）は、内輪（３２）の外周面に装着されて環状凹部（３２３）を密封する。密封装置（３４）は、芯金（３４１）と、弾性部（３４２）とを有する。芯金（３４１）は、第１内輪部材（３２１）の外周面と嵌め合わされている。弾性部（３４２）は、芯金（３４１）に接着される。弾性部（３４２）は、環状凹部（３２３）内に配置されている。弾性部（３４２）の軸方向の両端面は、環状凹部（３２３）の両側面に接触する。弾性部（３４２）の内周面は、全体に亘って、環状凹部（３２３）の底面と隙間（Ｃ）を空けて対向する。【選択図】図３