Idlers and sprockets are made of high quality cast steel with heat treatment.
Excavator idlers and sprockets from 5 ton up to 60 ton.
Tractor idlers and sprockets from 4 ton up to 60 ton. which is applicaple for the HITACHI ,KOMATSU,CAERPILLAR ,KATO ,DAEWOO etc

 

Tractor undercarriage parts for and Komatsu Caterpillar.

Komatsu : PC200, PC300, PC400, etc
Hitachi : EX200, EX300, EX400, etc
Kobelco : SK200, SK300, SK400, etc
Caterpillar : CAT320, CAT325, CAT330, etc
Daewoo : DH220, DH280, DH450, etc
Doosan : DX220, DX300, DX420, etc
Samsung : SE210, SE280, SE450, etc
Volvo : EC210, EC290, EC460, etc
Hyundai : R210, R290, R450, etc
Komatsu : D85, D155, D355, etc
Caterpillar : D7G, D8H, D9N, etc