| 摘要 |
PROBLEM TO BE SOLVED: To provide a low cost rolling bearing retainer made of PPS resin and provided with toughness. SOLUTION: This resin-made crown shaped retainer 1 is made of a composition by mixing 50 wt.% glass fiber and 20 wt.% non-organic filler with 30 wt.% linear PPS(Poly phenylene sulfide) resin as a base material. This retainer 1 satisfies practicality in product strength and forming process by using linear poly phenylene resin as PPS resin for the base material to make up weak points of brittleness and lack of flexibility of conventionally generally used cross-linking PPS resin. Amount of PPS resin is relatively decreased by 50 wt.% glass fiber and 20 wt.% non-organic filler to make the crown shaped resin retainer for rolling bearing cheaper.
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