This assembled idler wheel from NEXGEN is a high-quality replacement and an essential component of the mini-excavator's undercarriage. Its main task is to guide the rubber track and maintain its optimal tension, which is crucial for efficient operation and the long service life of the entire undercarriage.
| Brand | Model |
|---|---|
| JCB | 801, 8014, 8016, 8018, 802, 8020, 803, 804 |
To ensure optimal performance and a long lifespan for the idler wheel, we recommend replacing other worn undercarriage components. Be sure to also remember regular filter and oil changes.
The idler wheel is a key component of the tracked undercarriage, responsible for correctly guiding the rubber track and maintaining its tension. It works with the tensioning cylinder and the drive sprocket, ensuring stability and precision. Its proper functioning has a huge impact on the life of the tracks, rollers, and sprockets.
Symptoms of wear: The most common symptoms are excessive play in the wheel bearings, **visible damage** to the running surface (wear, cracks), or **lack of grease** causing the wheel to seize. A worn idler wheel can lead to the track coming off, uneven wear, and damage to other more expensive undercarriage components. Regular inspection and lubrication (thanks to the built-in grease nipple) are the basis of preventative maintenance.
By choosing **NEXGEN** parts, you are making an intelligent choice for your machine. We provide high-quality replacements that combine excellent quality with an attractive price. Each part is carefully verified to ensure full compatibility and reliability you can count on. The 231/61701 idler wheel is the perfect combination of functionality and durability, designed for intensive use in a demanding work environment.
The idler wheel is located at the front of the undercarriage and is responsible for guiding the track. The drive sprocket, located at the back, is powered by a hydraulic motor and is responsible for the movement of the entire track.
Does this wheel fit models other than those listed?This wheel is designed for a wide range of JCB mini-excavators from the 801 series. We always recommend verifying the part number to ensure 100% compatibility.
How often should the idler wheel be replaced?The lifespan of the wheel depends on working conditions and regular maintenance. It should be replaced when there is visible mechanical damage, the bearings have excessive play, or when the wheel no longer turns freely.
Do I need to grease the new wheel before installation?The new wheel is pre-greased at the factory. However, it is important to regularly replenish the grease through the built-in grease nipple during standard inspections, as this will significantly extend its lifespan.
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Efficient Guidance
Designed for optimal track tension
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Precise Fit
Replacement with quality equivalent to the original
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Easy Maintenance
Built-in grease nipple for lubrication
If you have any doubts whether the product you have chosen will be suitable for your machine, contact us and in a few minutes we will select the right part and provide practical tips.
Data sheet
Specific References
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towar bez zarzutu, tak samo jak i obsługa:) fajnie tez, ze czesto sa promocje - w tych czasach ciezko kupic cos w dobrej cenie i byc zadowolonym z jakosci... dlatego tutaj serwis-kop zdecydowanie jest moim faworytem






Idler wheel suitable for JCB 801 mini excavators - complete

















