clearance fit
clearance fit — 名詞
1. a type of connection between two machine parts where a small, intentional space
間隙配合
零件間留有空隙的機械配合方式
a type of connection between two machine parts where a small, intentional space is left between them so that one part can slide or rotate freely inside the other without getting stuck
A clearance fit between the steel shaft and bearing lets the shaft turn freely without overheating.
鋼製軸心與軸承之間的間隙配合，讓軸心能夠自由轉動而不過熱。
countable noun phrase: a clearance fit
The factory chose a 0.2-millimetre clearance fit for the smooth movement of the drawer slides.
工廠為抽屜滑軌選用了 0.2 公釐的間隙配合，以確保滑動順暢。
collocation: a clearance fit of [measurement]
A clearance fit let the repair crew take the old water pump apart by hand.
間隙配合讓維修人員可以用手就把舊水泵拆開。
Engineers specify a clearance fit wherever two metal parts must slide against each other.
只要兩個金屬零件必須彼此滑動，工程師就會指定採用間隙配合。
- loose fit
more general, less precise; describes any connection with wiggle room, while clearance fit implies a specific engineering tolerance
- sliding fit
a subtype of clearance fit where the gap is small enough to guide motion but still allows free movement
- interference fit
the opposite type of fit where parts overlap intentionally and must be pressed together
- press fit
a common type of interference fit where one part is forced into a slightly smaller hole
用法筆記
Frequently contrasted with interference fit (緊配), where parts are intentionally made to overlap. In engineering drawings, the amount of clearance is specified in millimetres or micrometres. Common in contexts describing bearings, pistons, gears, and sliding mechanisms.