Doosan DH55 Excavator Undercarriage Parts HRC 55 - HRC 60 Excavator Carrier Roller
Price:
$45 - $50
MOQ:
1
Delivery Time:
3-7 work days
Brand:
Doosan
Product Description
Carrier Roller of Excavator Undercarriage Parts for Doosan DH55
Maximize the stability and track performance of your Doosan DH55 excavator with this premium DH55 carrier roller, engineered to OEM specifications. As a critical upper track support component, this roller guides the top track chain, prevents sagging, and reduces friction during operation. Built with hardened alloy steel and precision-sealed bearings, it withstands heavy loads, impact, and abrasive environments, ensuring long service life and minimizing downtime. Every roller undergoes rigorous quality testing to guarantee consistent performance in construction, landscaping, and earthmoving applications.
Core Selling Points
✅ Exact OEM Fit for Doosan DH55
Precision-machined to match the original Doosan DH55 carrier roller dimensions, shaft length, and bearing configuration. It installs seamlessly without modifications, ensuring perfect track alignment and optimal undercarriage performance.
✅ Heavy-Duty Industrial Construction
Forged from high-grade alloy steel with deep heat treatment, these rollers offer exceptional hardness (HRC 55–60) and wear resistance. The precision-ground surface reduces track wear, while the reinforced housing resists impact and deformation.
✅ Advanced Sealing & Lubrication
Equipped with a double lip seal system and factory-greased bearings, these rollers prevent water, dust, and debris ingress, eliminating premature bearing failure. The hermetic seal maintains lubrication even in wet or muddy conditions.
✅ Long-Lasting & Cost-Effective
Engineered to outlast standard aftermarket rollers by 2–3 times, reducing replacement frequency and lowering maintenance costs. Each unit is backed by a 6-month manufacturer warranty.
| Category | Parameter | Specification |
|---|---|---|
| General Information | Product Type | Track carrier roller (top roller) |
| Compatible Models | Doosan DH55 Excavator | |
| Condition | New aftermarket unit, 100% tested | |
| Certification | ISO 9001:2015 quality certified | |
| Warranty | 6-month comprehensive manufacturer warranty | |
| Construction & Material | Roller Body Material | High-strength alloy steel (40MnB) |
| Surface Hardness | HRC 55–60 (quenched and tempered) | |
| Shaft Material | 45# steel with induction hardening | |
| Bearing Type | Double-row tapered roller bearing | |
| Seal Type | Double lip oil seal | |
| Grease Type | High-temperature lithium-based grease | |
| Performance Parameters | Static Load Capacity | 15–20 kN |
| Operating Temperature Range | -30°C to 80°C | |
| Maximum Operating Speed | 5 km/h | |
| Service Life | 3000+ hours under normal working conditions | |
| Installation Specifications | Mounting Type | Direct bolt-on replacement |
| Center Shaft Length | Matches OEM specifications | |
| Outer Diameter | Matches Doosan DH55 OEM dimensions | |
| Net Weight | ~5–7 kg per unit |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Lanxin Machinery Equipment Co., Ltd
Location
No. 407, Building 4, Tianji International Machinery, 12 Dongheng Sanlu Road, Zhujun District, Guangzhou City
Contact Person
Isaac