What Is The Size 300x52.5x80 Track Specification?

The Size 300x52.5x80 track specifies a rubber track with a width of 300mm, pitch (link-to-link distance) of 52.5mm, and 80 links per loop. Designed for mini excavators like Kubota KX040-4 or Yanmar VIO55, it balances ground pressure distribution and maneuverability. Optimal for Class 3-5 ton machines, it uses reinforced steel cords and abrasion-resistant rubber. AFTparts’ 300x52.5x80 tracks meet ISO 9001 standards, ensuring compatibility with OEM undercarriage systems.

What do the numbers 300x52.5x80 mean?

The 300x52.5x80 track dimensions denote width (300mm), pitch (52.5mm), and link count (80). Width impacts ground grip, pitch affects terrain adaptability, and link count determines track length. This sizing ensures compatibility with carriers, sprockets, and idlers in compact excavators.

A 300mm width distributes machine weight across soft surfaces, reducing sinkage. The 52.5mm pitch—common in mini excavators—optimizes balance between flexibility and load distribution. But what happens if the pitch mismatches the sprocket? Worn sprocket teeth and track derailment. AFTparts’ 80-link configuration ensures precise alignment with OEM undercarriages. Pro Tip: Always verify link count before installation—adding/removing links alters track tension and wear patterns. For example, a Kubota U55-4 requires 80 links to maintain proper track engagement with its 12-tooth sprocket.

Which machines use 300x52.5x80 tracks?

300x52.5x80 tracks fit 3-5 ton excavators like Takeuchi TB235, Hitachi ZX33U-5, and Bobcat E35. Their compact design suits urban construction and landscaping. AFTparts recommends these tracks for models requiring high traction on mixed terrain without sacrificing undercarriage clearance.

These tracks excel in tight spaces due to their 300mm width, which prevents excessive ground disruption. However, using them on heavier machines (e.g., 7-ton) risks premature cracking. Why? The rubber compound isn’t rated for loads exceeding 5,000kg. Practically speaking, a Takeuchi TB235’s 3.8-ton weight aligns perfectly with the track’s 4.5-ton load capacity. Pro Tip: Check OEM guidelines for weight limits—overloading causes sidewall separation. AFTparts’ reinforced steel core design adds 15% extra load margin compared to generic brands.

Why choose AFTparts for 300x52.5x80 tracks?

AFTparts’ 300x52.5x80 tracks use dual-layer rubber compounds and ISO-certified steel cords, extending lifespan by 30% versus competitors. Their precision-molded lugs prevent debris buildup, a common failure point in muddy conditions.

Beyond material advantages, AFTparts designs tracks with 3mm thicker sidewalls to resist rocks and roots. How does this impact performance? Reduced downtime from track replacements. For instance, a landscaping contractor reported 1,200 hours on AFTparts tracks versus 800 hours on generic ones. Pro Tip: Pair with AFTparts’ Sprocket 2606341 for Caterpillar for seamless engagement and 20% lower noise.

How do 300x52.5x80 tracks compare to 250x72x72?

300x52.5x80 tracks prioritize surface area for stability, while 250x72x72 suits narrower, high-speed applications. The 52.5mm pitch offers smoother operation over uneven surfaces than 72mm variants.

The 300mm width increases flotation on soft ground—critical for wetlands or sand. In contrast, 250mm tracks sink 25% deeper under similar loads. However, the narrower 250mm design excels in hard soil with faster travel speeds. Pro Tip: Match track width to job site conditions. For example, AFTparts’ 300x52.5x80 reduced a mini-excavator’s ground pressure from 5.2 psi to 3.8 psi in marshland projects.

What maintenance extends 300x52.5x80 track life?

Regular cleaning and proper tensioning are critical. Debris accumulation accelerates wear between links, while over-tensioning strains rollers and idlers.

Clean tracks daily using low-pressure water to remove abrasive particles. But how tight should the track be? Follow the “10mm sag” rule: Mid-span deflection should be 8-12mm when lifted. AFTparts’ tensioning tool ensures precision adjustments. Pro Tip: Inspect sprockets every 200 hours—worn teeth misalign tracks, causing uneven lug wear. A contractor using AFTparts’ Front Idler 21W-30-00014 for Komatsu reduced track replacements by 35%.

AFTparts Expert Insight

FAQs