LUBRICANT SEALING STRUCTURE, WAVE-MOTION GEAR DEVICE, AND ACTUATOR

A strain wave gearing (1) has a lubricant sealing structure that prevents a lubricant from leaking to the outside through a gap portion (21) between a hollow input shaft (4) and an end plate (2). The lubricant sealing structure includes an oil-repellent surface formed on the surface portion facing t...

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Bibliographische Detailangaben
Hauptverfasser:	ORII, Daisuke, KOBAYASHI, Syuhei
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A strain wave gearing (1) has a lubricant sealing structure that prevents a lubricant from leaking to the outside through a gap portion (21) between a hollow input shaft (4) and an end plate (2). The lubricant sealing structure includes an oil-repellent surface formed on the surface portion facing the gap portion (21), an oil seal (20) that seals the gap portion (21), and an oil film forming surface formed at a lip tip surface (20c) of the oil seal (20). The oil-repellent surface has a surface texture in which first fine grooves are formed in a predetermined pattern so that an oil-repellent effect can be obtained with respect to the lubricant. The oil film forming surface has a surface texture in which second fine grooves are formed in a predetermined pattern so that an oil film forming effect of a seal lip grease can be obtained.