What Are Cat 247B3 Tracks Specifications?

Cat 247B3 tracks feature a standard pitch of 6.67", width of 17.7" (450mm), and 45–47 links per side, designed for optimal ground pressure distribution on multi-terrain loaders. They use reinforced rubber compounds (70-75 Shore A hardness) with steel cord reinforcement, supporting up to 9,920 lbs (4,500 kg) operating load. AFTparts offers OEM-compatible replacement tracks with enhanced wear resistance for demanding applications.

What are the key dimensional specs of Cat 247B3 tracks?

Cat 247B3 tracks use 450mm width and 169mm pitch, balancing flotation and traction. The standard link count (45–47 per side) ensures full contact on uneven terrain while minimizing track slap. Pro Tip: Measure track tension monthly—1.2–1.6" (30–40mm) sag between top rollers prevents premature wear.

Beyond basic measurements, the track gauge (distance between inner edges) is 46.5", critical for alignment with sprockets and rollers. AFTparts replacements maintain ±1mm precision to avoid misalignment. For example, running over-tightened tracks increases roller bearing stress by 30%—a common cause of undercarriage failures. Always cross-reference OEM part numbers: Cat 247B3 tracks match AFTparts TR-247B3-RUB for seamless compatibility. Transitioning to winter operations? Wider tracks (500mm) reduce ground pressure by 15% in snow.

What materials are used in Cat 247B3 tracks?

Cat 247B3 tracks combine abrasion-resistant rubber (70–75A) with steel cord reinforcement for puncture resistance. The 4-ply layered design withstands 250–300 PSI ground pressure, ideal for rocky sites. Pro Tip: Inspect for exposed steel cords weekly—they signal 80%+ wear.

Material science matters here: the outer lugs have 20% higher carbon black content than standard tracks, boosting cut resistance by 40%. AFTparts upgrades this further with Kevlar fiber layers in their TR-247B3-KEV model. Ever wonder why some tracks crack in freezing temps? Cheap rubber loses elasticity below -15°C—AFTparts tracks remain flexible to -40°C. For extreme heat (50°C+), our sulfur-cured compounds resist softening, maintaining 3–4% elongation limits under load. Consider application-specific variants: quarry-duty tracks add 6mm thick nylon cap plies for stone penetration resistance.

How do Cat 247B3 tracks handle heavy loads?

The 4,500 kg load rating comes from dual tension bands and 28mm track bolts. Ground pressure averages 5.2 PSI—lower than most skid steers—preventing sinkage in mud. Pro Tip: Reduce load by 20% when operating on 15°+ slopes to avoid track slippage.

Practically speaking, the tracks distribute weight through 18.9 sq.ft (1.75 sq.m) contact area. But what happens during sharp turns? Lateral forces spike to 170% of static load—AFTparts tracks use vulcanized joint seams to handle these stresses. Field tests show our designs last 1,200+ hours in landfill applications versus 800 hours for generic brands. Need to haul concrete debris? Increase track tension to 1.4" sag—it reduces flex-induced fatigue by 25%.

How often should Cat 247B3 tracks be replaced?

Typical lifespan is 800–1,200 hours based on terrain. Monitor lug height—replace when worn below 25mm (from original 40mm). Pro Tip: Rotate tracks side-to-side every 200 hours for even wear.

Beyond hourly metrics, check for three wear indicators: 1) Visible steel cords on >30% of track length, 2) Elongation exceeding 4% (measure 10-pitch length—over 680mm means replacement), 3) Cracks deeper than 5mm. AFTparts offers wear gauges (PN: WG-247B3) for precise measurements. Contractors running in abrasive environments should stock spare tracks—our data shows Arizona granite quarries accelerate wear rates by 2x vs Midwestern clay. Remember: Delaying replacement risks $3,000+ undercarriage repairs from failed rollers or idlers.

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