Patent ID: 6531431
Filing Date: 2003-03-11
Classification: C10M,C10N,G11B

Abstract:
A pivot assembly bearing in which an oil composition is sealed, said oil composition comprising:(A) a fluorinated ether-based oil; and (B) an additive of the general formula (i) Zâ€”Yâ€”Zâ€ƒâ€ƒ(i) â€ƒwherein Z represents a fluorinated ether group of the formula (ii) â€ƒin which m is an integer of 1 to 50, and Y represents an aliphatic diamido group of the general formula (iii): â€ƒin which n is an integer of 1 to 30, or an alicyclic diamido group of the general formula (iv) â€ƒor an aromatic diamido group of the general formula (v) â€ƒor a cyclic diamido group of the general formula (vi)