Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic compound containing boron
Patent
1995-06-07
1997-11-25
Howard, Jacqueline V.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic compound containing boron
508322, 508391, 508420, 508460, 508542, C10M13710, C10M13510
Patent
active
056912838
ABSTRACT:
In a motor vehicle, especially a heavy duty motor vehicle, having a transmission equipped with at least one cone-type synchronizer and an axle or differential gearing, the same lubricant is used for both such mechanisms. The lubricant has a viscosity grade level of from SAE 75W90 to SAE 85W140 and comprises base oil containing at least (i) Mannich base ashless dispersant; (ii) metal-free, sulphur-containing antiwear and/or extreme pressure agent; (iii) metal-free, phosphorus-containing and nitrogen-containing antiwear and/or extreme pressure agent; and (iv) overbased alkali or alkaline earth metal carboxylate, sulphonate or sulphurized phenate having a TBN of at least 145. The lubricant contains at most, if any, 100 ppm of metal as one or more metal-containing additive components other than (iv).
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Lubrizol Newsline, Jan. 1993, pp. 2-4 "Additive Allows Single Lubricant to Work in Axles and Transmissions".
Macpherson Ian
Poat Julia C.
Wallace Graeme M.
Walters David Kenvyn
Ethyl Petroleum Additives Limited
Hamilton Thomas
Howard Jacqueline V.
Rainear Dennis H.
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