To provide a heat resistant and oil-resistant rolling bearing which can prevent the deterioration of lubricating oil by avoiding the separation of a low-molecular weight polymer, an additive, a colorant or the like slightly remaining in a resin-made cage from a resin body, or to provide the rolling bearing for a compressor of a refrigerator which does not deteriorate refrigerator oil, and also does not hinder the function of a capillary tube of a refrigerating cycle.
The heat-resistant and oil-resistant rolling bearing comprises the case formed of one or more crystalline resins selected from a polyamide group resins (polyamide 4-6, polyamide 6T or polyamide 9T) whose melting point is not lower than 280C. Since the case is formed of the resin whose melting point is not lower than a prescribed melting point, the rolling bearing can withstand a high temperature whose melting point is lower than the prescribed melting point, and a resin component is not separated into liquid outside the bearing. Also since the rolling bearing is formed of the crystalline resin, the volume of the liquid outside the bearing absorbed by the resin is small, and thus the low-molecular polymer, the additive, the colorant or the like is hardly separated from the resin body.
EGAMI MASAKI
| JP2002242940A | 2002-08-28 | |||
| JP2003139288A | 2003-05-14 | |||
| JP2006077804A | 2006-03-23 | |||
| JPH0988967A | 1997-03-31 |
Higashio Masahiro
Takayoshi Tagawa