| 摘要 |
PROBLEM TO BE SOLVED: To provide a radial needle roller bearing for suppressing the possibility of flaking while securing a long life. SOLUTION: Two radial needle roller bearings with rollers 51 in two rows each have a short total length and share a moment load with each other. Thus, bearing pressure PP is decreased, as shown in Fig.2 by a screen tone, and a diameter hole Cb is formed between rollers 51, 51 in opposition thereto, therefore suppressing stress concentration while avoiding a load zone. COPYRIGHT: (C)2008,JPO&INPIT
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