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1. Body Material:40Mn2, surface hardness HRC52-60,hardeness depth 8-20mm。Forging, Rough, Automatic welding, Overall zan fire, Quenched, Shot, Finish turning.

2. Bearing Material: 50Mn, surface hardness HRC52-60, hardeness depth 3-6mm. Forging, Rough, Lf quenched, Drilling finish, High-frequency quenching, Fine grinding, washing recipe.

3. Floating seal material: centrifugal casting, high alloy contact. Hardness HRC65-72, face roughness 0.1µm-0.2µm.

4. Bolts material: 45#steel plating color Grade 10.9.

5. O-ring: have better oil leaking resistance and high-temperature resistance

6. Technique: forging

7. Certification: ISO9001:2008

8. Warranty time: one year

9. Excavator undercarriage parts track roller wheel color: black or yellow

We are the manufacturer of undercarriage parts for excavator and bulldozer in China and we have been in the field of OEM undercarriage parts for more than15 years. Our main products are track roller, top roller, idler and sprocket and etc .which are supplied for multiple construction machinery brands such as Komatsu, Kobelco, Hitachi and Caterpillar.

We are undercarriage parts manufacturer, and we can supply

Tension spring assembly for PC200-7

About delivery

1. International Express: Such as DHL, TNT, FEDEX and so on.

2. Air transportation: For goods above 45KG, it is economic choice for customers.

By Sea: Heavy cargo by container transport.

Service commitment

1. We will send the goods as fast as we can to save your time.

2. All the pictures on our web site are real images of the part itself. What you see is what you get.

3. Goods will be packed safely and carefully.

About delivery

1. International Express: Such as DHL, TNT, FEDEX and so on.

2. Air transportation: For goods above 45KG, it is economic choice for customers.

By Sea: Heavy cargo by container transport.

<1>Warranty

Q: There are so many suppliers fromChina, how to identify the quality?

A: All parts that we sell enjoy 3 to 12 months warranty; if any parts break during warranty, just offer us the proof. We'll resend you new one!

<2>Delivery

Q: What if parts we order from you are lost during delivery?

A: We'll resend the parts!

4. Price

Q: Why your price is so high?

A: You get what you pay for.

There are no winfall profits at all in the open market. We just insist resonable profits.

We offer genuine parts and replacement parts as your request.

5. Lead time

Q: How many days it takes before you deliver the goods to us?

A: We have most easily-damaged parts in stock, for small goods, we could deliver you the goods after order confirmation and receving the payment; for large quantity, we need 1 or 2 more days to order wooden box or pallet, 2-3 days to book flight/vessel and deliver the goods to named port/airport.

Contacts: skype:shirley34456