The job involved the most arduous of conditions with no maintenance or lubrication.
The razor comes in dark blue, gray, and silver.The Series 7 can be washed under water and features the Clean and Renew system, which automates the cleaning, lubrication, and drying of your razor while charging it.
Features include perfectly equilibrated hands, precision gears that require no lubrication, and an annular balance that produces a mere two vibrations per minute.
The Gillette Venus Divine has three blades, a large pivoting head and lubrication strips to help you get a clean, close shave and avoid nicks and cuts.
For modern methods of forced lubrication see BEARINGS.
But a limit is put to th~ diminution of the radii of journals and pivots by the conditions 01 durability and of proper lubrication, and also by conditions 01 strength and stiffness.
Its viscid character, and its non-liability to dry and harden by exposure to air, also fit it for various other uses, such as lubrication, &c., whilst its peculiar physical characters, enabling it to blend with either aqueous or oily matters under certain circumstances, render it a useful ingredient in a large number of products of varied kinds.
The heating at the surfaces, the variations in their smoothness, and the variations of the lubrication make continuously variable, and necessitate frequent adjustment of W or of the nuts.
The principal uses of rape oil are for lubrication and lighting; but since the introduction of mineral oils for both these purposes the importance of rape has considerably decreased.
For further information on this point and on Osborne Reynoldss theory of lubrication see BEARINGS and LUBRICATION.