CAT 320 Idler Wheel for Excavator undercarriage

CAT320 Idler Wheel High Wear Resistant for CAT320C 320D 320D2 GC GX

The CAT 320 series includes models such as 320C, 320D, 320D2 and new-generation 320 (GC, GX). The undercarriage comes in standard and long (L) versions. The tread diameter, flange type and shaft diameter of the idler wheel vary according to different undercarriage configurations. It guides the track for proper rotation to prevent track deviation and derailment. Working with the tensioning system, it maintains track tension and cushions impact loads during travel. You may also check our matched excavator undercarriage parts.

FAJX PARTS has identified quadrant wear and cracking issues on some CAT320 idlers during operation. Thirteen years of research and data tracking on idlers reveal that these failures are mainly caused by blowholes formed during casting and uneven deoxidation in the melting process. To tackle this problem, we have established a special R&D project team together with universities in Fujian Province. Our goal is to improve the performance of excavator idlers under muddy, frigid, high-temperature and harsh working conditions, and ensure the idler maintains stable control of the track chain. During high-temperature casting, we add hard alloy and tungsten alloy elements to enhance the hardness and wear resistance of the idler body.

Product Parameters

Production Process

Standard Container

Engineering Advantages

FAJX PARTS excavator undercarriage parts and CAT320 series idler wheel have been exported to 57 countries and regions. We own a 30,000 ㎡ standardized factory plant, equipped with modern digital production workshops and infrared product inspection workshops. We carry out industry-university R&D cooperation with universities in Fujian Province to optimize materials and casting processes. Our products achieve extended service life compared with peer products, delivering high-durability excavator undercarriage components for global clients.

Custom Service Description

FAJX PARTS provides custom service for excavator undercarriage parts, including CAT320 series idler wheel and full range of undercarriage components.

We support retail, small batch wholesale and mass customized production. Customization options include material selection, heat treatment process, dimension specifications, logo marking (FAJX brand or customer’s private logo), and packaging solutions based on your drawings, samples or machine parameters.

We keep all order documents and technical drawings on file for all custom orders and set up exclusive product archives for easy restocking and repeat orders.

MOQ, lead time and quotation vary for different customized specifications. Feel free to contact us for quotations and technical support.

Maintenance and Replacement

FAJX PARTS recommends the following guidelines to maintain long-term stable operation of the CAT320 excavator, ensure the undercarriage parts support the whole system efficiently and maximize the service life of the CAT320 idler:

1. Clean the excavator undercarriage system after each work shift and inspect for damage.

2. Promptly replace the idler if cracks, oil leakage or other damage is found on the idler body.

3. Park the excavator on level ground and shut down the engine before replacing the excavator idler wheel.

4. Re-clean the entire undercarriage system, inspect track rollers, idlers, track chains, sprockets, track shoes, carrier rollers and track guards for damage. Replace damaged components together if necessary.

5. Perform replacement strictly in accordance with the CAT operator’s manual and FAJX PARTS product manual.

6. We recommend keeping stock of CAT320 excavator idler wheels to avoid stock shortage and enable timely replacement.

Quality Assurance & Professional Service

FAJX PARTS is committed to delivering high-quality Made in China CAT320 idlers to every customer, backed by thoughtful services. We not only focus on product quality, but also aim to support your local sales business:

1. Our CAT320 idlers are manufactured strictly in accordance with third-party standards of CE, SGS and CNAS.

2. During casting and product forming processes, we implement two rounds of infrared inspection and magnetic particle testing to ensure consistent quality of every FAJX product.

3. Each product comes with a certificate of conformity and instructions for your reference.

FAQ

Q: Are you factory offering OEM & ODM service?

A: Yes, we are factory and support OEM & ODM custom CAT320 idler wheel.

Q: What is your MOQ?

A: Small MOQ is available, we support retail and small batch wholesale.

Q: Where is your factory located?

A: Our factory is located in Fujian, China, all idler wheels are Made in China.