noun
A belt made of leather, typically for clothing or accessories.
この帯革は牛革でできている。
This leather belt is made of cowhide.
noun
machine belt; drive belt
A belt used in machinery, such as a conveyor belt or drive belt.
工場では帯革を使って動力を伝える機械がある。
In factories, there are machines that use belts to transmit power.
ベルト is the common loanword for 'belt' in both clothing and machinery contexts. 帯革 is a more specific, often technical term for leather or machine belts.
Compound of 帯 (obi, 'belt/sash') and 革 (kawa, 'leather'), literally 'leather belt'.