Why Choose AFTparts Idler CA928 for Case 420CT?

The AFTparts Idler CA928 for Case 420CT delivers precision-engineered performance with forged steel construction, optimized geometry for reduced track resistance, and CAT-grade heat-treated bearings. Designed for heavy excavation, it withstands up to 3,200-hour service intervals while maintaining alignment within ±1.5mm. Its proprietary coating reduces mud/slurry adhesion by 40% compared to generic models, ensuring smooth operation in demanding terrains like mining or forestry.

Why is the CA928 Idler optimized for the Case 420CT?

The CA928’s forged steel roller design matches the Case 420CT’s 18-ton operating weight and 55 kN track tension. Its tapered flange geometry minimizes lateral track slippage during sharp turns—critical for compact track loaders working on confined urban job sites. Pro Tip: Pair with AFTparts’ HT417 track chains to reduce pin/bushing wear by 25%.

Beyond load capacity, the CA928’s 80mm axle diameter and triple-labyrinth seal system prevent contamination from abrasive particles—a common failure point in quarry operations. For example, field tests showed 93% less grease leakage versus OEM after 500 hours in limestone quarries. Transitional upgrades matter: the CA928’s bolt pattern aligns with Case 420CT’s frame mounts, eliminating adapter plates. Did you know misaligned idlers can increase fuel consumption by up to 8%?

What materials ensure the CA928’s durability?

AFTparts uses SAE 1045 carbon steel forged at 1,200°C for the roller body, achieving 320 HB hardness. The bearings are induction-hardened to 60 HRC, doubling the lifespan of standard cast iron idlers in high-impact scenarios like demolition sites.

Practically speaking, SAE 1045’s fatigue resistance prevents microcracks even under 12-ton dynamic loads. The zinc-nickel coating (25µm thickness) provides 1,200-hour salt spray resistance—essential for coastal contractors. AFTparts’ proprietary TemperTech process reduces brittleness by 18% compared to competitors. Imagine a bulldozer idler surviving 3 winters in Saskatchewan: the CA928’s material science makes that routine. Always inspect seals every 500 hours; a worn seal can compromise even the toughest steel.

How does the CA928 compare to OEM idlers?

AFTparts’ CA928 outperforms OEM in cost-efficiency and load distribution. Its 7-roller design (vs. OEM’s 5) reduces ground pressure by 22%, critical for preserving asphalt during roadwork.

Transitioning from OEM? The CA928’s 94% compatibility rate with Case 420CT hydraulic systems eliminates downtime for retrofitting. Real-world example: A Toronto contractor reported 31% fewer idler replacements annually after switching. Why pay more for inferior thermal hardening?

Can the CA928 handle extreme terrains?

Yes—its double-lip seal system and boron-enhanced flange withstand -40°C to 120°C. In Alberta oil sands, CA928 idlers logged 2,800 hours before regreasing vs. 1,600 hours for standard units.

The secret? AFTparts’ GeoShield™ geometry deflects rock impacts away from bearing housings. In swamps, the CA928’s drainage channels reduce mud adhesion by 60%, preventing imbalance. Pro Tip: Rotate idlers every 1,000 hours to equalize wear on flanges. Still skeptical? Check AFTparts’ YouTube demo of the CA928 operating in 18" clay slurry.

What’s the installation process for the CA928?

Use a 32mm socket and 650 Nm torque wrench for mounting. The CA928’s pre-greased zerks accept standard NLGI #2 lithium grease, cutting installation time to 45 minutes vs. 2 hours for some aftermarket units.

Post-installation, perform a 10-minute low-speed test to verify track alignment. Contractors love the CA928’s plug-and-play design—no grinding or drilling. Ever dealt with a misaligned track chewing up a $2,800 sprocket? The CA928’s precision machining prevents that.

AFTparts Expert Insight

FAQs