𝔖 Bobbio Scriptorium
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Ball and roller bearing grease


Publisher
Elsevier Science
Year
1972
Weight
122 KB
Volume
5
Category
Article
ISSN
0041-2678

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Friction and carrying capacity of ball a
✍ Whittemore, H.L. (author);Petrenko, S.N. (author) πŸ“‚ Article πŸ“… 1921 πŸ› Elsevier BV 🌐 English βš– 149 KB

Dec., I92I.] U.S. BUREAU OF STANDARDS NOTES. 805 nitrite method of Holden and James. Each of these methods concentrated the erbium but not as rapidly as the nitrate fusion method. The best erbium fractions available contained considerable yttrium and probably small amounts of other rare earths. FRI