Trunnion

16th-century depiction of a cannon with trunnions

Philadelphia Penrose bridge c. 1880 (shown open) swings on a Trunnion Bearing.

A trunnion (from Old French "trognon", trunk) is a cylindrical protrusion used as a mounting and/or pivoting point. First associated with cannon, they are an important military development.

Alternatively, a trunnion is a shaft that positions and supports a tilting plate. This is a misnomer, as in reality it is a cradle for the true trunnion.

单词	Trunion
释义	Trunion 英语百科 Trunnion A trunnion (from Old French "trognon", trunk) is a cylindrical protrusion used as a mounting and/or pivoting point. First associated with cannon, they are an important military development. Alternatively, a trunnion is a shaft that positions and supports a tilting plate. This is a misnomer, as in reality it is a cradle for the true trunnion.
随便看	titanic acid ester的意思 titanic acid的意思 Titan的意思 Titan的意思 Titanic anhydride的意思 titanic carbide的意思 titanic cast iron的意思 Titanic chloride的意思 Titanic Dioxide的意思 titanichthyid的意思 titanichthyids的意思 Titanic hydroxide的意思 Titanic iron的意思 Titanic iron ore的意思 titanic magnetite的意思 titanic oxide的意思 titanic oxides的意思 titanic peril的意思 Titan的意思 titanic schore的意思 titanic schorl的意思 titanic sulfate的意思 Titanides的意思 titaniferous的意思 titaniferous augite的意思

Trunion

Trunnion