Product Overview

The Track Roller, also known as Bottom Roller or Lower Roller, is an important undercarriage component installed beneath the track frame of Hyundai R80 crawler excavators.

The roller carries the machine operating weight, supports the track chain and maintains correct crawler alignment during travelling and excavation operations.

For compact excavators like Hyundai R80, track rollers are exposed to:

• Continuous machine loading
• Uneven terrain impact
• Soil and gravel abrasion
• Mud and water contamination

A worn or damaged track roller may cause:

• Track chain misalignment
• Increased travelling vibration
• Abnormal track noise
• Uneven track wear
• Accelerated wear of sprocket and idler

Our Hyundai R80 track rollers are manufactured with professional undercarriage production technology to provide reliable aftermarket replacement solutions for dealers, repair workshops and equipment owners.

Key Features & Benefits

Wide Compatibility

Designed for:

• Hyundai R80
• Hyundai R80-7
• Hyundai R80-7A
• Hyundai R80CR-9

Reference OEM Number:

• 81N1-11010

Single & Double Flange Options

Available configurations:

• Single Flange (SF)
• Double Flange (DF)

Suitable for different positions on the track frame.

High Strength Alloy Steel Construction

Manufactured from:

40Mn2 Alloy Steel

Advantages:

• High load-bearing strength
• Excellent impact resistance
• Strong fatigue resistance
• Extended service life

Advanced Heat Treatment

The roller tread surface is induction hardened:

• Surface hardness: HRC 52-58
• Hardening depth: 5mm-10mm

Improves resistance against:

• Gravel abrasion
• Hard soil wear
• Continuous operation impact

Reliable Floating Seal System

Equipped with:

• Heavy-duty floating oil seal
• High-quality bushing
• Lifetime lubrication system

Designed to prevent:

• Oil leakage
• Dust intrusion
• Water contamination

OEM-Style Direct Replacement

Manufactured with:

• Accurate roller dimensions
• Correct shaft size
• Standard mounting structure

Provides direct bolt-on replacement without modification.

Technical Specifications