Upper roller suitable for JCB 8080, JZ70 mini excavators
KERTRACK

Upper roller suitable for JCB 8080, JZ70 mini excavators

Catalog number:SKX727399KR Nr OEM:JAA0012 Manufacturer:KERTRACK
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GX-AFTER TOP ROLLER (CARRIER) SUITABLE FOR JCB 8080, 8085, JZ70 - JAA0012

Technical Specification and Compatibility

A critical undercarriage component – a brand new top roller (carrier roller) by GX-AFTER. Designed for the JCB 7-8 ton class midi excavators, including the popular 8080, 8085, JZ70, JS80, and JS81 models. It is manufactured by a company specializing in high-quality casting and forging of undercarriage parts. A complex casting process and comprehensive heat treatment (hardening) guarantee maximum tread durability and resistance to loads in the toughest working conditions.

Part number: JAA0012
Manufacturer: GX-AFTER
Type: Top Roller (Carrier Roller)
Construction: Hardened Tread, Oil-Filled, Maintenance-Free

GX-AFTER is the smart choice for your machine. We provide high-class replacement parts that combine excellent quality with an attractive price. Each part is carefully verified to ensure full compatibility and reliability you can depend on.

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

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

Top rollers (carrier rollers) support the upper run of the track chain. They prevent the chain from sagging, striking the undercarriage frame, and reduce noise, vibration, and wear on the track links.

  • › Loud, metallic noise or squealing during travel (symptom of a seized bearing).
  • › Excessive vibration of the upper track section.
  • › Visible oil leak from the roller's seals.
  • › Uneven wear or "flat spots" on the roller surface (seized roller).

📞 Can't find the part you're looking for?

No problem. Our website shows only a few thousand of the over 60,000 parts we have in stock. Contact us – we probably have what you need on the shelf!

🔧 Expert's Guide: Key Installation Tips

  1. Clean Mounting Surface: Before bolting on the new roller, thoroughly clean the mounting surface on the track frame of all rust, dirt, and old grease.
  2. 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.
  3. Inspect Chain: Check the condition of the track chain's inner link surfaces. If they are heavily worn or damaged, they will destroy the new top rollers.
  4. Correct Track Tension: An over-tensioned track places extreme load not only on the idlers and sprockets but also on the top rollers. Set the correct track sag.

Frequently Asked Questions (FAQ)

1. What is the difference between this roller (JAA0012) and 332/U1415?

Both are top rollers for JCB midi excavators, but they fit different models. This roller (JAA0012) is specific to the 8080, 8085, and JZ70. The 332/U1415 roller is for the 8040-8065 range. They likely have different mounting dimensions or tread profiles and are not interchangeable.

2. Is this roller maintenance-free?

Yes. GX-AFTER 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 top roller, part number 332/U1415 (or 234/14900).

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.

SKX727399KR
JAA0012
4.20 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
EXCAVATOR
MINIEXCAVATOR
OEM NUMBERS
JAA0012

Specific References

MPN
JAA0012
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Upper roller suitable for JCB 8080, JZ70 mini excavators

Catalog number: SKX727399KR
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gross price

244.77 zł

net price
199,00 zł
Available in large quantity Temporarily unavailable
199,00 zł
net price

244.77 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 20 points, it gives you 8.00 zł
  • Lowest price from 30 days before the discount: 244.77 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    EXCAVATOR
    MINIEXCAVATOR
    OEM NUMBERS
    JAA0012

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