๐”– Bobbio Scriptorium
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Guide to ball and roller bearing lubrication


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
67 KB
Volume
11
Category
Article
ISSN
0141-6359

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Friction and carrying capacity of ball a
โœ Whittemore, H.L. (author);Petrenko, S.N. (author) ๐Ÿ“‚ Article ๐Ÿ“… 1921 ๐Ÿ› Elsevier BV ๐ŸŒ English โš– 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