The drag sprocket is composed of a drag sprocket shaft, a floating oil seal seat, a drag chain wheel body, a drag chain cover, a screw, a floating oil seal, an O-ring, and a tapered roller bearing.
Our products are according to the standard of OEM to manufacture.
Drag sprocket function: the carrier roller is used to reduce the track sag between the idler and the drive sprocket, and support the track loose edge from the drive sprocket, and when the track in the engagement is tightened, it is used to guide the track to disengage from the mesh, when installing a drag sprocket, it should not be placed in the middle of the wheel base, but closer to the drive sprocket. It is worth noting that if the diameter of the e-mail sprocket is too small, there is a possibility that the track will slip along the e-tramp rim, which will grind out a "light plane" according to the wear of the e-mail rim, which will cause the e-chainer to stop rotating.
Drag sprocket installation arrangement: when the drag sprocket is installed on the excavator, a single arm support is adopted, and the support block is heightened, so that the space below is increased, and the obstruction of silt and stones is avoided when walking, and the wear between the track section and the reducer bearing is also avoided, and the passability of walking is improved.
Some parts of excavator and dozer Carrier roller as below:
| KOMATSU | PC20 | PC30 | PC35 | PC40 | PC45 |
| PC60-1-3-5-6-7 | PC75 | PC100-3-5 | PC120-3-5 | PC150 | |
| PC200-1-3-5-6-7-8 | PC220-1-3-5-6 | PC300-1-3-5-6-7 | PC350 | PC400-3-5-6 | |
| CATERPILLAR | E55/E55B | E70/E70B | E110/E110B | E120/E120B | E180 |
| E215 | E225DLC | E235 | E240 | E300B | |
| E307 | E300J | E305 | E311/E312 | E320/E200B | |
| E322 | E324 | E325 | E330 | E339 | |
| E345 | E450 | ||||
| HITACHI | EX30 | EX40 | EX55 | EX60-1-2-3-5 | EX70 |
| EX100-1-3 | EX120-1-3-5 | EX150 | EX200-1-2-3-5-8 | EX220 | |
| EX230 | EX270 | EX300-1-2-3-5-6 | EX400-1-2-3-5 | EX600 | |
| UH043 | UH052 | UH053 | UH07 | UH081 | |
| UH082 | UH083 | ZAXIS 60 | ZAXIS 200-3-6 | ZAXIS 240 | |
| ZAXIS 270 | ZAXIS 330 | ZAXIS 360 | ZAXIS 450 | ZAXIS 870 | |
| ZAXIS 110 | ZAXIS 120 | ||||
| BULLDOZER | D20 | D3 | D30 | D31 | D3L |
| D3C | D37 | D3D | D4C | D40 | |
| D4D | D4H | D41 | D45 | D50/D5/D5B | |
| D53/D57/D58 | D60/D65 | D6D/D6 | D6C | D6H | |
| D65=D85ESS-2 | D75 | D7G/D7 | D80/D85 | D85A-12 | |
| D8K | D8N | D9N | D135 | D150 | |
| D155 | D255 | ||||
| KATO | HD80 | HD140 | HD250 | HD400(HD450) | HD550 |
| HD700(HD770) | HD820(HD850) | HD880 | HD900 | HD1023 | |
| HD1220 | HD1250 | HD1430 | HD2053 | ||
| SUMITOMO | SH60 | SH70 | SH100 | SH120 | SH200 |
| SH210 | SH220 | SH280 | SH300 | SH320 | |
| SH350 | SH360 | SH400 | SH450 | SH460 | |
| LS2800FJ | S340 | S430 | |||
| KOBELCO | SK60 | SK70 | SK75 | SK07-N2 | SK07/2/7 |
| SK100 | SK120-3-5-6 | SK125 | SK160 | SK200-1-3-5-6-8 | |
| SK210 | SK220-3-6 | SK230 | SK250 | SK260 | |
| SK300-3-6 | SK320 | SK330 | SK400 | SK450 | |
| DAEWOO | DH55 | DH60 | DH80 | DH130 | DH150 |
| DH200 | DH220 | DH215 | DH220 | DH258 | |
| DH280 | DH300 | DH360 | DH370-9 | DH400 | |
| DH420 | DH500 | UH07 | K907C | ||
| HYUNDAI | R60 | R80 | R130-5-7 | R150 | R200 |
| R200-5 | R210 | R210-7 | R215-7 | R220-5 | |
| R225-7 | R260-5 | R265 | R290 | R300-5 | |
| R305 | R320 | R385 | R420 | R450-3-5 | |
| VOLVO | EC55B | EC140B | EC210 | EC240 | EC290B |
| EC290B PRIME | EC360 | EC460 | EC700 |
Company Profile
Changte Machinery Parts Co., Ltd is a collection of industry, trade as one of the modern parts company, specializing in the production and sales of excavator and bulldozers parts, the main products: chassis parts, vulnerable parts, seals, electrical parts, engine parts, hydraulic parts (system), wear-resistant parts, filter parts, etc.
Our products can be used with various machines such as KOMATSU, CATERPILLAR, HITACHI, SUMITOMO, DOOSAN, HYUNDAI, VOLVO, KATO, JCB, KOBELCO, SANY, XCMG, LiuGong, LIEBHERR, ZOOMLION, SUNWARD, CSAE, WORLD and so on. We can also design special products as our customer requests. We offer high quality products, shorter delivery times and the best logistics.
FAQ:
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: FOB
Q4. How about your delivery time?
A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from
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