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PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
Specifications
Delivery Time :
7-15Days
Showroom Loion :
None
Price :
US$19-34
Finish :
Smooth
Function :
Supports track chain and maintains tension
Place of Origin :
CHINA
Other Brands :
excavator idler
Material :
High-grade steel
Collor :
Black Yellow And Customer Required
Operatingtemperaturerange :
-40°C to 120°C
MOQ :
1PCS
Packaging Details :
Standard Export Packaging
Manufacturer :
ZTMC Part Heavy Machinery Co.
Packing :
standard exported pallet or box
Warranty Time :
12-18 Month
Package :
Standard export boxes
Brand Name :
ZTMC
Supply Ability :
10000PCS/Months
Model Number :
PC350-6/PC350-7
Certification :
ISO9001
Payment Terms :
T/T,L/C
Condition :
New
Type :
Undercarriage Parts
Description
PC350-6 PC350-7 Top Roller OEM Replacement 207-30-00170
Product Overview

This heavy-duty carrier top roller is a 1:1 OEM direct replacement for PC350-6 and PC350-7 excavators, with standard OEM part number 207-30-00170. Perfectly matching original mounting dimensions and bolt holes, it requires no cutting, drilling or any on-site modification. It effectively supports track operation, avoids track sagging and vibration, and optimizes undercarriage running performance for long-working heavy-duty excavator fleets.

Specifications
Item Specification
OEM Part Number 207-30-00170
Applicable Excavator Model PC350-6 / PC350-7
Machining Tolerance ±0.01mm CNC ultra-precision machining
Heat Treatment Process Overall quenching + stress relief tempering
Applicable Working Scenarios Muddy construction site, gravel quarry, road renovation, heavy-load earthmoving terrain
Installation Type Plug-and-play OEM direct replacement
Applicable Working Environments

PC350-6 and PC350-7 large excavators are widely used in large-scale earthmoving, quarry mining, road reconstruction and harsh muddy working sites. Continuous gravel friction, long-term water immersion and frequent impact bring high load pressure to undercarriage parts. This top roller is professionally built to adapt to severe working conditions and maintain stable performance during prolonged heavy-duty operation.

Core Production & Heat Treatment Process

Adopt high-strength one-piece forging steel blank to withstand heavy operational loads. Dual standard heat treatment is adopted: integral quenching improves surface hardness for excellent abrasion resistance; tempering eliminates internal metal residual stress to enhance structural toughness. All mounting holes and matching surfaces are processed by high-precision CNC equipment, with machining tolerance strictly controlled within 0.01mm, fully consistent with original factory OEM standards.

On-site Installation Steps
  1. Raise the excavator track with a hydraulic jack to separate track from ground and release partial track tension
  2. Remove fixing bolts of the old top roller, take out damaged roller and clean dust and sediment on the mounting base
  3. Place the new top roller in original position, align reserved bolt holes accurately
  4. Lock all fixing bolts with standard torque, reset track tension and conduct track idle running test
  5. Check no abnormal vibration or friction noise to complete installation
Product Advantages
  • High-precision size matching stabilizes track running and reduces walking vibration
  • Reinforced floating seal structure effectively isolates dust and muddy water
  • Complete dual heat treatment upgrades durability for heavy-duty working sites
  • Robust structure adapts to high-load operation of large excavators
  • Direct bolt-on installation saves maintenance time and labor cost
Customer Application Case

A large engineering fleet operates multiple PC350-6 and PC350-7 excavators for quarry and infrastructure projects. After equipped with our OEM-spec top rollers, all undercarriage parts keep stable operation over 1800 working hours with excellent sealing condition and complete roller shell, cutting annual undercarriage maintenance cost by 33%.

Frequently Asked Questions
Q1: Does this top roller fit PC350-6 and PC350-7?
A: Yes, OEM part number 207-30-00170 is fully compatible with both models, no extra adjustment needed.
Q2: What are the advantages of our products over ordinary aftermarket rollers?
A: Our products adopt complete dual heat treatment and 0.01mm high-precision machining, delivering better abrasion resistance and structural stability for long-term heavy-duty work.
Q3: Can you provide batch quality inspection reports for bulk orders?
A: Yes, we can provide professional heat treatment reports and dimensional inspection reports to support customer quality inspection and customs clearance.
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
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PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage

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Product Detail
Delivery Time :
7-15Days
Showroom Loion :
None
Price :
US$19-34
Finish :
Smooth
Function :
Supports track chain and maintains tension
Place of Origin :
CHINA
Contact Supplier
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage
PC350-6 PC350-7 OEM Replacement Top Roller High-grade Steel CNC Ultra-Precision Machining for Excavator Undercarriage

Nan'an Zhongte Engineering Machinery Factory

Verified Supplier
2 Years
fujian, quanzhou
Since 2015
Business Type :
Manufacturer, Exporter
Main Products :
Excavator Front Idler, Mini Excavator Front Idler, Bulldozer Front Idler
Total Annual :
5000000-8000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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