
High Quality Bulldozer Parts Dozer Carrier Roller Upper Roller for D9r Spare Parts
Product Introduction
We always make continuous breakthroughs with an enterprising spirit and persistently explore the technological frontier of our Track Adjuster Assy, Mini Excavator Top Roller, Sprocket For Crawler Crane. We pay attention to every customer service process, serve with heart and treat customers with sincerity. We strive to improve our management skills, as well as the ability to promote the scientific development of the company. We uphold the honest and rigorous work style, meticulous work attitude, regard customer needs as our responsibility, and strive to become the best partner for customers in the industry. We sincerely thank all parties for their love to our company and look forward to cooperating sincerely with more colleagues in the industry to develop together and create a better future.
Product Description
Bulldozer Upper Carrier Roller is made of 50Mn. It has many types and large quantities, which can support the weight of conveyor belts and materials. It is adopting through hardening system and spraying quenching system while complying with the stringent ISO System. And it has extremely high wear resistance and extremely low friction coefficient. Our Bulldozer Upper Carrier Roller is really a good choice for you.
Machining Process: Forging — Rough Turning — Heat Treatment — Finish Turning — Assembly — Spraying Paint
Heat Treatment Technical Data
• Surface quenching HRC 48-53
• Face hardening depth 5-8mm
• Corner hardening depth more than 1.5mm
Chemical Analysis
C | Si | Mn | P | S | Mo | |
Spec. | 0.48~0.56 | 0.17~0.37 | 0.70~1.00 | ≤0.04 | ≤0.04 | |
Actual | 0.49 | 0.14 | 0.88 | 0.016 | 0.023 |


We are using advance machining centre, horizontal and vertical CNC machining to execute processes such as machining, drilling, threading and milling to ensure the quality and precision of Bulldozer Upper Carrier Roller to ensure the accuracy of assembly dimensions. This is to maximize the life span of each component and minimize production cost per hour.

Application
The top roller fit with below bulldozer models:
KOMATSU | CATERPILLAR | JOHN DEERE | DRESSER |
D20 | D3B/D3C/D3G/D3K | JD450G | TD15M |
D30 | D4B/D4C/D4D/D4E | JD450J | TD20G |
D37E/D39EX-21 | D5/D5B/D5C/D5G/D5H | JD650J | TD25 |
D41A-6 | D5M/D5N | JD750J | |
D50 | D6C/D6D/D6R/D6H/D6M | JD850J | |
D60 | D7G/D7H/D7R | ||
D61 | D8R/D8T/D8K | ||
D85ESS-2 | D9L/D9N/D9R | ||
D80/85 | D10/D10L/D10N | ||
D155 | D11/D11N/D11R | ||
D275 | |||
D355 | |||
D375 | |||
D475 |
For more parts not included as the above, please send us your inquiry with specific needs!
PACKING: Strong Fumigate Wooden Pallet
PAYMENT: By 100% T/T. 30% T/T as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.
DELIVERY TIME: Generally, if we have stock, it will take about 7-day delivery time. Or it will take about 20 to 60 days after receiving your advance payment. The specific delivery time depends on the items and quantity of your order.
We have won the trust of the market and customers with our sincere and firm faith in dedication, making our High Quality Bulldozer Parts Dozer Carrier Roller Upper Roller for D9r Spare Parts sell well both at home and abroad. We cherish every opportunity customers give due to the trust, and we will do things with our heart, achieving lasting and progressive development. Please contact us right away!
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