Komatsu D31 Bulldozer Undercarriage Upper Roller 

1.Product Information

1) Carrying wheels with sing and double flanges suit for excavating equipment and caterpillar drilling equipment ranging from 3 to 50 tons.

2) Double conical sealing and lifelong lubrication desing enable the carrying wheel to have longer service life and perfect performance in any circumstances.

2.details pics/structure

More models below are available from us(not limited):
1) Komatsu: PC40, PC60-1-2-3-5-6-7, PC100-1-2-3-5-6, PC120-1-2-3-5-6, PC130, PC240, PC200-1-2-3-5-6, PC220-1-3-5, PC300-1-3-5-6, PC400-1-3-5-6,PC450-6

D20, D30, D31, D50, D60,D65
D75, D80 (D85), D155,D355

2) Hitachi: EX40, EX60-2-3-5,EX60LC-3-5, EX150, EX100M, EX100-2-3-5, EX120-1-2-3-5, EX150, EX200-1-2-3-5,EX200LC-2-3-5,EX220-2-3-5,EX220LC-2-3-5, EX300-1-2-3-5,EX300LC-1-2-3-5
EX400-2-3-5, UH08, UH07

3) Caterpillar:E70,E70B,E110, E110B,E120B, E200B ,E300,E320,E225,E235,, E240,E311B,E312B,E315B,E315 , E330,

D3C, D4.D4B.D4C,D4D,D4E,D4H,D5, D5B, D5C,D5E,D5H,D5M,D5D,
D6C, D6D, D5E,D6G,D6H,D6R, D7G,D7H, D8K,D8G,D8N,D9H,D9G

4) Daewoo: DH220, DH280, R200, R210.

5) Kato: HD250, HD400 (HD450), HD500, HD550, HD700 (HD770), HD800, HD820, HD850,
DH880, HD1020, HD1220 (HD1250), HD1430, DH1880

6) Kobelco: SK07N2, SK07-7,SK60,SK100,SK120,SK200, SK220, SK300, SK320

7) Sumitomo: SH120, SH200, SH280, SH300, SH400

8) Mitsubishi: MS110, MS120, MS180

9) Samsung: SE210,SE350LC-2,SE350LC-5

10)Volvo:EC210,EC240,EC290

4.factory views and certificate: