
Caterpillar D10t, Dozer Track Roller with Double Flange 309-7678
Machine type:crawler tracked excavator
Material:50MN
Guarantee:6months
Product Introduction
No matter new shopper or old customer, We believe in very long expression and dependable relationship for Track Roller SK400, Sprocket Rim SK045N2, Bulldozer Track Bolt And Nut. We take 'management to increase efficiency, service to expand the market, quality to ensure survival, and variety to promote development' as our work policy, give full play to our own resource advantages and core capabilities, work hard to make our products fully enter the world market. We are fully capable of developing and supplying products of high quality and moderate price for our customers. Based on the srong technical team and much production experience,we are looking forward to cooperating with the new partners for a continous contribution to the concerned industry.
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're hunting forward to your check out for joint development for Caterpillar D10t, Dozer Track Roller with Double Flange 309-7678. Through hard work of all employees for the past 20 years own company grew stronger and stronger. We are committed to creating maximum value for customers through continuous innovation, and constantly improving our own strength.
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