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Hitachi ZX33U Zaxis Mini Excavator Carrier Roller 4442145 Top Roller 4640106 Upper Roller 4392416 Undercarriage Spare Parts 4423019

Hitachi ZX33U Zaxis Mini Excavator Carrier Roller 4442145 Top Roller 4640106 Upper Roller 4392416 Undercarriage Spare Parts 4423019

USD $5.00 - $10.00 / Pieces

Min. Order: 1 Pieces

Supported Trade Terms:
FOBEXW
Lead Time:
in stock
Supply Ability:
10,000 Pieces
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Product Features & Applications

High-performance Carrier Roller (Top Roller) specifically designed for Hitachi ZX33U mini excavators. Compatible with OEM part numbers 4442145, 4640106, and 4392416. This heavy-duty Upper Roller features precision-forged steel and advanced sealing technology to ensure maximum uptime and exceptional service life in demanding work sites.

Product Overview

Our Hitachi ZX33U Carrier Rollers (also known as Top Rollers or Upper Rollers) are vital components for your mini excavator's undercarriage system. They are designed to support the weight of the track chain and ensure it travels smoothly over the undercarriage frame. Whether for landscaping, construction, or utility work, our rollers provide the reliability your Zaxis series machine demands.

Key Features & Benefits

  • Perfect Fit for ZX33U: Fully compatible with Hitachi Zaxis 33U models, adhering to strict original equipment manufacturer (OEM) standards.
  • Heavy-Duty Construction: Manufactured from high-density 40Mn2 or 50Mn forged steel for maximum structural strength.
  • Precision Hardening: The roller shell undergoes induction hardening (HRC 50-56), significantly extending the service life even in abrasive soil conditions.
  • Superior Sealing System: Equipped with high-quality mechanical seals and bimetal bushings to prevent oil leakage and keep dust/water out.
  • Zero Maintenance: Factory-lubricated for life, reducing the need for daily maintenance and lowering overall operating costs.

Technical Specifications

Item Specification / Detail
Compatible Model Hitachi ZX33U, ZX33U-2, ZX33U-3, ZX33U-5
Component Name Carrier Roller / Top Roller / Upper Roller
Material Forged 40Mn2 / 50Mn Steel
Hardness Depth 5mm - 8mm
Surface Hardness HRC 50-56
Seal Type High-performance Mechanical Seal
Warranty 1 Year / 2000 Working Hours

Why Partner With Us?

We understand that for mini excavators, precision and reliability are everything. Our ZX33U undercarriage parts are tested under extreme loads to ensure they outperform standard aftermarket alternatives. By choosing our carrier rollers, you get the perfect balance of OEM quality and factory-direct pricing, helping you keep your Hitachi fleet running at peak performance.

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