Pivot ass'y bearing
AssigneeMinebea Co., Ltd.
InventorsYasuhiro Mohri, Motoharu Akiyama
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Abstract
A fluorine-based oil composition for actuator roller bearings comprising (A) a fluorine-based oil and (B) a fluorinated ether diamide compound at a ratio by weight of 80 to 99.1:20 to 0.1. This composition is much better in torque, outgas and life than existing oil compositions.
Claims6
A pivot ass'y bearing in which oil composition is sealed up comprising:
- (A) a fluorine-based oil;
- and (B) an additive of the general formula (i)
- Z—Y—Z (i)
- wherein Z represents a fluorinated ether group of the formula (ii) 24
- in which m is an integer of 1 to 50, and Y represents an aliphatic diamido group of the general formula (iii) 25
- in which n is an integer of 1 to 30, or an alicyclic diamido group of the general formula (iv) 26
- or an aromatic diamido group of the general formula (v) 27
- or a cyclic diamido group of the general formula (vi) 28
A pivot ass'y bearing in which oil composition is sealed up comprising:
- (A) a fluorine-based oil composed of a fluorinated ether of the general formula (vii) 29
- wherein p is an integer of 6 to 100;
- and (B) a fluorinated ether aliphatic diamide additive of the general formulae (ii) and (iii) 30
A pivot ass'y bearing in which oil composition is sealed up comprising:
- (A) a fluorine-based oil composed of a fluorinated ether of the general formula (vii) 31
- wherein p is an integer of 6 to 100;
- and (B) a fluorinated ether alicyclic diamide additive of the general formulae (ii) and (iv) 32
A pivot ass'y bearing in which oil composition is sealed up comprising:
- (A) a fluorine oil composed of a fluorinated ether of the general formula (vii) 33
- wherein p is an integer of 6 to 100;
- and (B) a fluorinated ether aromatic diamide additive of the general formulae (ii) and (v) 34
A pivot ass'y bearing in which oil composition is sealed up comprising:
- (A) a fluorine oil composed of a fluorinated ether of the general formula (vii) 35
- wherein p is an integer of 6 to 100;
- and (B) a fluorinated ether cyclic diamide additive of the general formulae (ii) and (vi) 36
Dependencies are inferred from the claim text.