
Komatsu Mini Bulldozer Lower Roller Double Flange for D20 D30 Track Roller Undercarriage Parts
Machine type:crawler tracked excavator
Material:50MN
Guarantee:6months
Product Introduction
Our target is to consolidate and improve the quality and service of existing products, meanwhile constantly develop new products to meet different customers' demands for Boom Cylinder Assy, Front Idler MS140, Excavator Bucket Pin. We abandon the blind pursuit of high production and high profit operating methods, and assume social responsibilities that are broader than economic responsibilities. We have high-quality staff as well as technology and thoughtful pre-sale and after-sales service. Any questions can be consulted by telephone to our company. Warmly welcome to see the goods on site for price negotiation. After years of hard work and development, we have now developed into a modern enterprise with large production scale, superior technical force and strong financial strength.
Track Roller Double Flange
Production description
Track Roller Double Flange also called upper bottom roller or upper lower roller assembly are often in mud, water and just and bear strong impact. Therefore,they are required to be sealed reliably and wear-resisitant.
We will select different material as per different working condition for our track roller assembly to meet customer requirements and machine precisely and assemble them well to guarantee the hight quality.
Track Roller Double Flange are filled with lubricating oil in order to meet their normal working needs and ensure their service life. This requires that the supporting wheels have good sealing performance, and oil leakage can not occur. Therefore, floating oil seals are usually installed on the supporting wheels, but when the internal cleanliness of the supporting wheels decreases and the internal lubricants are mixed with impurities, it will not only aggravate the relative wear of internal components, but also directly or indirectly lead to the damage of floating oil seals, and then develop into the ultimate failure of the supporting wheels due to oil leakage.
Structure of bottom roller double flange:

Sizes of lowe roller double flange:

Our track roller are applieable to below models:
| Part NO | Description | Model |
| 163-4143 | TRACK ROLLER | CAT315/320 |
| 6I9396 | TRACK ROLLER | CAT322 |
| 163-4147 | TRACK ROLLER | CAT325 |
| 117-5047 | TRACK ROLLER | CAT330 |
| 178-7293 | TRACK ROLLER | CAT 345B |
| 9190194 | TRACK ROLLER | EX100-2/3 |
| 45019640 | TRACK ROLLER | FH200 |
| 9134243 | TRACK ROLLER | EX200-5 |
| 9247144 | TRACK ROLLER | ZX200-3 |
| 9247454 | TRACK ROLLER | ZX330-3 |
| 9168173 | TRACK ROLLER | EX300-5 |
| 4386648 | TRACK ROLLER | EX400-5 |
| 14504091 | TRACK ROLLER | EC210BLC |
| 14520148 | TRACK ROLLER | EC240BLC |
| 14527315 | TRACK ROLLER | EC290BLC |
| 14263401 | TRACK ROLLER | EC360BLC |
| 14263401 | TRACK ROLLER | EC460BLC |
| JRA0077 | TRACK ROLLER | JS220LC |
| JSA0047 | TRACK ROLLER | JS330LC |
| JSA0048 | TRACK ROLLER | JS330LC |
| YN64D00013F1 | TRACK ROLLER | SK200-6 |
| KRA1189 | TRACK ROLLER | SH200 |
| 201-30-00062 | TRACK ROLER SF | PC60-6 S/F |
| 20Y-30-00012 | TRACK ROLLER | PC200-5 |
| 207-30-00150 | TRACK ROLLER | PC300-5 |
| 20Y-30-00015 | TRACK ROLLER | PC200-6 |
| 208-30-00210 | TRACK ROLLER | РС 400-5 |
| 7T4107 | TRACK ROLLER | D6H DF COLLAR TYPE |
| 7T4102 | TRACK ROLLER | D6H SF COLLAR TYPE |
| 131-30-00320 | TRACK ROLER SF | D50 |
| 131-30-00332 | TRACK ROLER DF | D50 |
| 118-1608 | TRACKROLER SF | D4 |
| 118-1609 | TRACK ROLER DF | D4 |
| 118-1617 | TRACKROLER SF | D6C/D/E |
| 118-1618 | TRACK ROLER DF | D6C/D/E |
| 14X-30-00080 | TRACK ROLLER | D65E12 |
| 14X-30-00090 | TRACK ROLLER | D65E12 |
| 14X-30-00140 | TRACK ROLLER | D65E12 |
| 155-30-00125 | TRACK ROLLER | D85E21 |
| 155-30-00115 | TRACK ROLLER | D85E21 |
| 17A-30-00070 | TRACK ROLLER | D155A5 |
| 17A-30-00080 | TRACK ROLLER | D155A5 |
| 175-30-00480 | TRACK ROLLER | D155С1 |
| 175-30-00490 | TRACK ROLLER | D155С1 |
| 195-30-00336 | TRACK ROLLER | D355A5 |
| 195-30-00346 | TRACK ROLLER | D355A5 |
| 195-30-00114 | TRACK ROLLER | D355C3 (тр/у) |
| 195-30-00124 | TRACK ROLLER | D355C3 (тр/у) |
| 120-5746 | TRACK ROLLER | D6-R-BNL |
| 120-5766 | TRACK ROLLER | D6-R-BNL |
| 121-0824 | TRACK ROLLER | D6-N-LGP-ALR |
| 121-0827 | TRACK ROLLER | D6-N-LGP-ALR |
| 118-1623 | TRACK ROLLER | D7-R-XR-ADW |
| 118-1625 | TRACK ROLLER | D7-R-XR-ADW |
| 9W8705 | TRACK ROLLER | D8-R |
| 9W8706 | TRACK ROLLER | D8-R |
| 7T1258 | TRACK ROLLER | D9-R, D9-N |
| 7T1253 | TRACK ROLLER | D9-R, D9-N |
| 6Y0889 | TRACK ROLLER | D10R, D10N |
| 6Y0890 | TRACK ROLLER | D10R, D10N |
We don’t list out all of models we make. If any more items you need,please feel free to contact with us.
We will test the hardness after parts are heat treated to guarantee every part has suitable hardnes.

FAQ
1. How could you know if our parts are fitted to machines?
Please offer us the detailed machine models or mounting sizes.
2. What is MOQ for the order?
FCL and LCL are both acceptable.
3. Could we be your exclusive dealer?
Yes,our policy is that we will not let our customer to compete at the same place.
We are always committed to providing customers with authoritative, professional and meticulous Komatsu Mini Bulldozer Lower Roller Double Flange for D20 D30 Track Roller Undercarriage Parts and services. We should absorb talents with modern enterprise management strategies and management practices to join our team, in this way, our team building can keep pace with the pace of people-oriented and technology-leading corporate culture. Adapting to changes in the environment and pursuing high goals require us to have the courage to take the initiative to change.
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