翻訳と辞書 Words near each other ・ Roller Hockey Bundesliga ・ Roller Hockey International ・ Roller Hockey Pan American Games ・ Roller Hockey Premier League ・ Roller Hockey South American Club Championship ・ Roller in-line hockey ・ Roller locked ・ Roller Maidens from Outer Space ・ Roller mill ・ Roller mower ・ Roller Office Supply ・ Roller printing on textiles ・ Roller racer ・ Roller reamer ・ Roller rink ・ Roller rocker ・ Roller screw ・ Roller ship ・ Roller shoe ・ Roller shutter ・ Roller Skater (roller coaster) ・ Roller Skates ・ Roller skates ・ Roller skating ・ Roller skating at the 2006 Central American and Caribbean Games ・ Roller skating at the 2010 Central American and Caribbean Games ・ Roller skating at the 2011 Pan American Games – Men's free skating ・ Roller skating at the 2011 Pan American Games – Women's free skating ・ Roller skiing ・ Roller Soaker Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Roller rocker ： ウィキペディア英語版 Roller rocker A roller rocker is a rocker assembly that uses bearings instead of metal sliding on metal. A cam/rocker assembly uses a normal cam, but the roller-tip-rocker has a wheel on the end of it like that of a measuring wheel, which rolls by the use of needle bearings. Others will add roller bearings for the main pivot also. Although roller rockers are used in both pushrod and overhead cam engines, roller rockers for pushrod and overhead cam engines are considerably different in design. For pushrod engines, roller rockers employ a roller where the rocker contacts the valve stem. On the other hand, roller rockers for overhead cam engines employ a roller where the rocker contacts the cam. This greatly reduces frictional losses and wear compared to slipper followers (where the cam simply slides on a surface on the rocker arm). The difference between a roller rocker and a standard rocker with slipper followers on an overhead cam engine is analogous to the difference between roller lifters and flat tappet lifters on a pushrod engine. The amount of power required to spin a cam is surprisingly high, and it gets harder if stiffer valve springs are used, which are necessary to prevent valve float with aggressive cam profiles at high rpm. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Roller rocker」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.