摘要:
The waterproof grease composition of the present application comprises a base oil that comprises at least one of mineral oil and synthetic oil and having a kinematic viscosity of from 10 to 400 mm 2 /sec at 40°C, a thickener, and a waterproofness-imparting agent selected from surfactant, metal soap, fluorine-containing water repellent, silicone-type water repellent, pH-controlling agent, wax, polymer and graphite. Accordingly, it may prevent peeling such as white structure peeling even when water is mixed therein. The wheel-supporting roller bearing of the invention comprises an inner member having a raceway surface in the outer peripheral surface thereof, an outer member having, in the inner peripheral surface thereof, a raceway surface that faces the raceway surface of the inner member and disposed outside the inner member, and plural rolling elements rollably disposed between the two raceway surfaces, and which contains the above waterproof grease composition sealed therein; and this has excellent waterproofness.
摘要:
Clear water-soluble lubricants for chain belt conveyors contain a combination of: (a) at least one or several compounds having the general formula (1), in which R1 stands for a saturated, mono- or polyunsaturated, linear or branched-chain alkyl residue with 6 to 22 C atoms, that may if required be substituted by -OH, -NH¿2?, -NH-, -CO-, halogen or a carboxyl residue; R?2¿ stands for a carboxyl residue with 2 to 7 C atoms; M stands for hydrogen, an alkali metal, ammonium, an alkyl residue with 1 to 4 C atoms or a benzyl residue; and n stands for an integer in the range from 1 to 6; (b) at least one organic carboxylic acid selected among monobasic or multibasic, saturated, monounsaturated or polyunsaturated carboxylic acids having 2 to 22 C atoms; (c) water and additives and/or adjuvants, if required.
摘要:
Non-sulphurised overbased metal salts of sulphur-free calixarenes having a substituent hydroxyl group or groups available for reaction with metal base and their preparation are claimed. The salts are useful as additives to lubricating oils by reason of their acids neutralisation capability, their detergent and their antioxidant properties.
摘要:
Lubricant additives are produced by reacting an alkoxylated amine with phosphorous acid. The additives preferably also contain a boron moiety which is reacted with the phosphorous acid and amine, preferably in a one step reaction. More preferably, a mono-functional alcohol or a long-chain aliphatic carboxylic acid is added to this mixture. The additives are particularly useful in metalworking oils and particularly as extreme pressure additives to replace the currently used chlorinated paraffin additives.
摘要:
This invention is to lubricating or fuel oil compositions containing amine compatibility aids. The amine compatibility additives are especially useful in stabilizing (or "compatibilizing") concentrates, lubricating oil or fuel oil compositions which contain copper antioxidants, high molecular weight dispersants, high total base number detergents, and various antiwear friction modifier materials. These materials may, in some circumstances, replace at least a portion of previously used compatibility aids and antioxidants.
摘要:
Provided is a grease composition which can be used as a lubricant for roller bearings, exhibits excellent high temperature durability and rust preventive property, and can prevent premature flaking on the rolling surface due to hydrogen embrittlement. A roller bearing 1 is obtained by sealing a grease composition 7 in the periphery of a rolling element 4, this grease composition 7 is composed of a base oil excluding an ester-based synthetic oil, a thickener, and an additive, the additive contains (a) an alkanolamine and (b) 2,2,4-trimethyl-1, 2-dihydroquinoline or a polymer thereof but does not contain an organic sulfonate, and (a) and (b) are contained at from 0.1 to 10 parts by weight with respect to 100 parts by weight of a total amount of the base oil and the thickener, respectively.
摘要:
To provide a heat treatment oil composition which is obtained by mixing a base oil, (A) a metallic detergent-dispersant and (B) an aliphatic carboxylic acid having from 6 to 30 carbon atoms, has high cooling capacity, and is excellent in cooling capability although the composition has a high flash point.
摘要:
A functional fluid composition having improved gear performance comprises an oil of lubricating viscosity, and added thereto (a) an alkali or alkaline earth metal salt complex in the form of borated and/or non-borated salts; (b) an EP/antiwear agent comprising a mixture of zinc salts of dialkylphosphorodithioic acid and 2-ethylhexanoic acid heated with triphenyl phosphite or an olefin; and (c) a borated epoxide. The oil of lubricating viscosity has a kinematic viscosity of at least 4 cSt and 100 DEG C and a -40 DEG C Brookfield viscosity of less than 20,000.
摘要:
A lubricant composition, particularly for use in belt or chain coveyors, comprises a soap component together with further usual lubricant components, being characterized in that this is substantially free from hardness ion complexing or sequestering agents and comprises a substantially biodegradable, non-ionic, anionic or amphoteric soap dispersant.