bushing
/ˈbu̇-shiŋ How to pronounce bushing (audio)/ (ame, mw)
bushing — 名詞
1. a tube-shaped part, usually made of metal, rubber, or plastic, that fits tightly
襯套
機件中減少摩擦的管狀零件
a tube-shaped part, usually made of metal, rubber, or plastic, that fits tightly inside a hole in a machine to protect the surrounding surface from rubbing or to keep a moving rod or shaft in the correct position while it moves
Rodrigo replaced the worn bushing inside the pump to stop the shaft from rattling.
Rodrigo 更換了幫浦內磨損的襯套，讓轉軸不再發出喀喀聲。
worn bushing — the part that degrades over time and needs replacement
The old brass bushing on the bicycle pedal had cracked after thousands of kilometres of use.
腳踏車踏板上的老舊黃銅襯套在行駛數千公里後出現了裂痕。
brass bushing — material + noun collocation showing common construction
Ritu slid a rubber bushing onto the metal rod before pushing the whole assembly into the frame.
Ritu 將橡膠襯套套上金屬桿，才把整個組件推入框架中。
When the steering felt loose, Jin discovered that the bushing in the suspension had worn completely flat.
方向盤變鬆之後，Jin 發現懸吊系統的襯套已經完全磨平了。
Dario greased the new bronze bushing before fitting it into the engine housing to prevent metal-on-metal contact.
Dario 在新的青銅襯套上塗了潤滑油，才裝進引擎外殼，以防止金屬直接接觸。
- sleeve
A broader term for any tube that fits over or inside a part. Unlike bushing, sleeve does not specifically imply friction reduction or wear protection.
- bush
A shorter, less common form of bushing. Used mainly in British English in technical contexts ('a brass bush').
- liner
A very general term for any protective covering layer. Liner does not specify the cylindrical shape that bushing does.
用法筆記
Frequently modified by a material adjective (rubber bushing, brass bushing, bronze bushing) or a location noun (suspension bushing, steering bushing). The bushing is designed to wear down instead of the larger, more expensive part it protects, so 'worn bushing' and 'replace the bushing' are common collocations.
常見錯誤
2. a protective tube made of a non-conductive material such as rubber, ceramic, or
絕緣襯套
保護電線通過金屬孔洞的絕緣件
a protective tube made of a non-conductive material such as rubber, ceramic, or plastic that surrounds an electrical wire or conductor where it passes through a hole in a metal panel, box, or casing, stopping the electric current from leaking to the surrounding structure
Before closing the electrical panel, Selim checked each rubber bushing around the power cable for cracks.
Selim 在關上配電箱之前，檢查了電源線周圍每個橡膠絕緣襯套是否有裂痕。
rubber bushing + electrical panel — domain-specific collocation
Beatrix installed a ceramic bushing where the live wire passed through the metal casing of the motor.
Beatrix 在電線穿過馬達金屬外殼的地方裝了一個陶瓷絕緣襯套。
ceramic bushing — material choice for high-temperature insulation
The damaged insulating bushing on the transformer caused a short circuit that shut down the entire factory floor.
變壓器上受損的絕緣襯套造成短路，導致整間工廠停擺。
Christopher tightened the nut over the bushing to fix the conductor firmly in place without crushing the insulation.
Christopher 鎖緊襯套上的螺帽，將導線固定好，同時避免壓壞絕緣層。
The bushing near the furnace melted under the extreme heat, so Allison ordered a ceramic replacement.
靠近熔爐的襯套因極度高溫而熔化，Allison 訂了一個陶瓷型號來更換。
- insulating grommet
A flexible ring that protects cables passing through a hole. Grommet is usually softer and not tube-shaped in the same way a bushing is.
- insulating liner
A broader, less technical term for any non-conductive cover. Less precise than bushing in professional contexts.
用法筆記
Distinguish from sense 1 by the domain: this sense describes electrical insulation protecting against current leakage, not mechanical friction reduction. Often found in phrases like 'transformer bushing,' 'panel bushing,' or 'feed-through bushing.' The material is always non-conductive — commonly porcelain, ceramic, rubber, or specialised plastic.