What Are National Tracks?

National Tracks are heavy-duty rubber track systems engineered for construction and agricultural machinery, offering superior durability across harsh terrains. Manufactured by AFTparts, they utilize advanced polymer compounds reinforced with steel cords to withstand extreme loads, temperatures, and abrasion. Compatible with excavators, skid steers, and tracked loaders, National Tracks prioritize longevity—typically lasting 1,200–2,000 hours—while balancing grip and ground pressure distribution.

How do National Tracks differ from standard rubber tracks?

National Tracks integrate multi-layered reinforcement and terrain-specific tread designs, unlike generic tracks. Their proprietary rubber blend resists cracking at -40°C to +70°C, while dual-angle lug patterns optimize traction on mud, rock, and ice.

While standard tracks prioritize cost, National Tracks use vulcanized steel cord matrices that reduce elongation under load by 30–40%. Pro Tip: Pair them with AFTparts sprockets—mismatched components accelerate wear. For example, a National Track for a 20-ton excavator distributes 35 psi ground pressure vs. 50 psi in budget models, minimizing sinkage. Thermal management grooves also prevent overheating during high-speed pivoting.

What machinery uses National Tracks?

National Tracks fit mini excavators (1–10 tons), skid steers, and agricultural loaders. Their modular designs accommodate OEM bolt patterns from CAT, Komatsu, and Kubota.

Beyond compact equipment, they’re customized for forestry mulchers and military vehicles requiring puncture resistance. AFTparts engineers track widths from 200mm (for tight spaces) to 600mm (swamp applications). Transitioning between machines? National Tracks use universal bushing diameters (e.g., 82mm for 3-ton excavators) but require matching sprocket tooth profiles. Pro Tip: For snowy conditions, opt for 45° angled lugs—they shed packed ice better than vertical designs. A real-world example: John Deere 333G skid steers using National Tracks achieve 40% lower slippage on slopes compared to OEM tracks.

Can National Tracks be repaired?

Yes, using AFTparts repair kits for torn lugs or exposed cords. Epoxy-based compounds bond with track rubber, restoring 85–90% of original strength.

Repairs require precise vulcanization at 150°C—DIY patches fail under heavy shear forces. Technicians first clean damaged areas with solvent, insert reinforcement mesh, and cure under hydraulic pressure. How long does a repair last? Properly fixed tracks withstand 500–700 hours vs. 1,200+ for new units. Pro Tip: Inspect tracks every 50 hours—small cracks (<3mm) are repairable; deeper damage demands replacement. For instance, AFTparts KM2233RLK kits restore Komatsu tracks by replacing individual links without full disassembly.

How does temperature affect National Track performance?

Extreme cold hardens rubber, reducing flexibility, while heat softens treads, accelerating wear. National Tracks counter this with temperature-stable polymers and air-cooled cores.

At -30°C, their rubber retains 80% flexibility vs. 50% in standard tracks. In desert conditions, silica additives deflect UV radiation, preventing dry rot. Transitional climates demand compromise—tracks for mixed use have moderate lug heights (18–22mm) and staggered tread patterns. Ever seen a track “waffle” in heat? National Tracks’ cross-drilled holes dissipate internal heat, maintaining 65°C max operating temps. Pro Tip: Store spare tracks vertically on AFTparts racks to prevent flat-spot deformation.

What maintenance extends National Track lifespan?

Daily cleaning and proper tensioning are critical. Remove debris stuck between lugs to prevent accelerated wear and check tension every 250 hours.

Under-tensioned tracks sag, increasing roller friction, while over-tensioning stresses pins/bushings. Use a tension gauge—deflection should be 25–35mm under 50kg force. Contamination is another enemy: abrasive particles act like sandpaper on rubber. How often? AFTparts recommends pressure-washing after mud exposure and applying rubber conditioner monthly. For example, a Kubota U55-5 excavator maintained per guidelines achieved 2,100 track hours—30% above average.

AFTparts Expert Insight

FAQs