Roller track lower suitable for JCB 8080, JZ70 mini excavators
KERTRACK

Roller track lower suitable for JCB 8080, JZ70 mini excavators

Catalog number:SKX865846KR Nr OEM:JAA0011 Manufacturer:KERTRACK
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KERTRACK TRACK ROLLER (BOTTOM) SUITABLE FOR JCB 8080, 8085, HITACHI ZX70 - JAA0011

Technical Specification and Compatibility

A critical undercarriage component – a brand new track roller (bottom roller) by KERTRACK. Designed for JCB 7-8 ton class midi excavators (e.g., 8080, 8085, JZ70) and a wide range of Hitachi machines (e.g., ZX70, ZX75, EX60). It is manufactured by an expert in high-quality undercarriage castings and forgings. A complex casting process and comprehensive heat treatment (hardening) guarantee maximum tread durability and resistance to loads in the toughest working conditions.

Part number: JAA0011
Manufacturer: KERTRACK
Type: Track Roller (Bottom Roller)
Construction: Hardened Tread, Oil-Filled, Maintenance-Free

KERTRACK is a world leader in high-quality undercarriage components. By choosing KERTRACK rollers, you are investing in technology that guarantees maximum service life, excellent wear resistance, and a precision fit, minimizing downtime and operating costs.

Essential for Installation

  • › Mounting Bolts: Always use new, high-tensile bolts to mount the roller to the track frame.

Application in machines

Brand Type / Series / Model
JCB Midi Excavators: 8080, 8085, JZ70, JS80, JS81
HITACHI EX60-5, EX75-3, EX75-5, HX180B, HX180B-2, ZR125HC, ZX70, ZX75, ZX80, ZX85

The list above is for reference. It is crucial to verify the OEM part number or roller dimensions.

⚠️ Safety Warning

Working on track undercarriages is extremely dangerous. Use extreme caution when releasing and tensioning tracks. Track tension must be released before service. The machine must be securely supported on certified stands. Never rely solely on the machine's own hydraulics.

Part's Role in the Machine and Failure Diagnostics

Track rollers (bottom rollers) transfer the entire weight of the machine to the track chains and the ground. They are responsible for guiding the chain along the track frame and are subjected to constant high-impact loads and abrasion. Failure of one roller overloads the others and accelerates wear of the entire undercarriage.

  • › Oil leakage (symptom of a failed duo-cone seal).
  • › Loud noise, squealing, or grinding during travel (seized internal bearings).
  • › Seized roller (does not turn), leading to "flat spots" on the tread.
  • › Excessive wear on the flanges, which can lead to the track de-railing.

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🔧 Expert's Guide: Key Installation Tips

  1. New Bolts: Always use new, high-tensile mounting bolts and tighten them in a star pattern using a torque wrench to the manufacturer's specification.
  2. Clean Mounting Surface: Thoroughly clean the mounting surface on the track frame of all rust and dirt before bolting on the new roller.
  3. Correct Track Tension: An over-tensioned track places extreme load on the rollers and drastically shortens their service life. Set the correct track sag.

Frequently Asked Questions (FAQ)

1. What is the difference between this roller (JAA0011) and JAA0012?

Both rollers fit the same range of machines (JCB 8080, 8085, JZ70). The difference is their function: this product (JAA0011) is the bottom (track) roller, which carries the machine's weight. Part JAA0012 is the top (carrier) roller, which supports the top section of the track. They are not interchangeable.

2. Is this roller maintenance-free?

Yes. KERTRACK rollers, like the genuine ones, are factory-filled with oil and equipped with durable, heavy-duty seals that provide lubrication for their entire service life. They do not require regular greasing.

3. Will this fit my JCB 8065?

No. This roller is for the 8080/8085/JZ70 series. The 8065 machine uses a different bottom roller (part number 234/14800 or 332/U1381).

Znak zapytania

Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.

SKX865846KR
JAA0011
12.55 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
EXCAVATOR
MINIEXCAVATOR
OEM NUMBERS
JAA0011

Specific References

MPN
JAA0011
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Roller track lower suitable for JCB 8080, JZ70 mini excavators

Catalog number: SKX865846KR
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gross price

343.79 zł

net price
279,50 zł
Available in large quantity Temporarily unavailable
279,50 zł
net price

343.79 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 28 points, it gives you 11.20 zł
  • Lowest price from 30 days before the discount: 343.79 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    EXCAVATOR
    MINIEXCAVATOR
    OEM NUMBERS
    JAA0011

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