Home > Excavator Track Roller >

Hitachi EX70 Carrier Roller Excavator Smooth Finish

Product Categories

Quanzhou Jintai Machinery Co., Ltd.,

Trust Seal

Verified Supplier

Credit Check

Supplier Assessment

Contact Now

Hitachi EX70 Carrier Roller Excavator Smooth Finish

Name: Hitachi EX70 Carrier Roller Excavator Smooth Finish
Brand: Hitachi
Price: 155 USD

China Hitachi EX70 Carrier Roller Excavator Smooth Finish wholesale

Brand Name : Hitachi

Model Number : EX70

Place of Origin : Quanzhou.Fujian.China

MOQ : 1000

Price : RMB155~180/PCS

Payment Terms : T/T

Delivery Time : Within 20 days after contact established.

Packaging Details : Wooden pallet packaging

name : Hitachi EX70 Carrier Roller Excavator Smooth Finish

keyword : Hitachi EX70 Carrier Roller Excavator

Finish : Smooth

type : Excavator Spare Parts

Material : 50Mn/40MnB

Color : black,yellow

Keyword : track roller,wheel conveyor

Package : Export wooden pallet

Warranty time : 2000hours

Contact Now

Product Details

Products Description

1. Product Overview

Compact Hitachi Ex70 Carrier Roller Excavator Is A Critical Component That Supports The Weight Of The Excavator And Ensures Smooth Movement.

Hitachi Ex70 Carrier Roller Key Features
Durable Construction: Designed For Heavy-Duty Performance, The Carrier Roller Is Built To Withstand Tough Working Conditions.
Enhanced Stability: Provides Stability During Operation, Allowing For Better Lifting And Digging Performance.
Easy Maintenance: The Design Facilitates Easy Access For Maintenance And Replacement, Reducing Downtime.
Compatibility: Specifically Designed For The Hitachi Ex70 Model, Ensuring Optimal Performance And Fit.

Model: EX70
Type: Track Roller (Bottom Roller / Carrier Roller)
Compatibility: Designed for EX70-series excavators and small tracked construction machinery. May also fit equivalent models (e.g., Komatsu PC70, Caterpillar equivalents – verify before application).

Product name	Excavator / Bulldozer Front Idler ,Excavator Idlers ,Track Idler
Material	50Mn/40MnB
Finish	Smooth
Colors	Yellow or Black & Customized
Technique	Main Forging
Surface Hardness	HRC48-54 / HRC51-58 / HRC52-60 & Customized
Warranty time	2000hours
Certification	ISO9001-9002
Delivery Time	Within 20 days after contact established.
Package	Standard exported wooden pallet Fumigate seaworthy packing
OEM&ODM	Acceptable
Payment Term	T/T
Business Scope	Bulldozer & excavator undercarriage parts , bucket,arm,mini excavator etc..

The ex70 casters are suitable for models such as EX60-2/3/5, EX80-5, ZX75, ZX75UR, ZX75US-A, EX70,LG906/907/908 and ME75

2.Key Specifications
Dimensions:
Outer Diameter: φ180-200mm (varies by design)
Width: 80-100mm
Shaft Diameter: φ40-50mm
Mounting Hole Spacing: Customized based on track gauge.
Material:
Roller Body: High-strength alloy steel (42CrMo or equivalent), hardened surface (HRC50-55).
Shaft: Carbon steel, chrome-plated for corrosion resistance.
Seals: Dual-seal system (NBR rubber + metal ring).
Load Capacity:
Dynamic Load: ≥5 tons
Static Load: ≥8 tons

3. Structural Features

Sealing System:

Labyrinth seal + floating oil seal design, preventing mud, water, and debris ingress.
Lubrication: Lithium-based grease-filled for extended service intervals.
Bearing Type:
- Tapered roller bearings or deep groove ball bearings (model-dependent), high-load resistant.
Surface Treatment:
- High-frequency induction hardening, depth 2-3mm, service life ≥3000 hours.

4. Operating Conditions

Suitable for earthwork, gravel, and light mining operations.
Temperature Range: -30°C to +80°C.

5. Maintenance & Replacement
Replacement Interval: Inspect every 2000-3000 operating hours; replace immediately if abnormal noise or oil leakage occurs.
Installation Torque: Shaft nut torque 180-220 N·m (refer to OEM manual).
6. Packaging & Warranty
Packaging: Individually packed in wooden crates with anti-rust oil coating.
Warranty: 12 months (excluding misuse or overload damage).

Hitachi EX70 Carrier Roller Excavator Smooth Finish