Track Chain CR3520 7P2556 for Caterpillar 953 Track Loader Undercarriage

What Makes Our CR3520/40 Chain Stand Out

• Sealed & Lubricated (SALT) Design – Floating seals keep dirt out and oil in. Internal pin & bushing wear drops dramatically compared to dry chains – many customers report 30–50%longer life in abrasive conditions.
• Forged 35MnB Links – Heat-treated to HB 360–400 core hardness, with pins and bushings induction-hardened to HRC 52–56. Tough enough for demolition debris and rocky soil, yet not brittle.
• Master Link Included – Split-type for easy installation in the field without pressing tools.
• Proven in the Real World – We’ve shipped these to US contractors running 953s on pipeline work, scrap yards, and municipal fleets. 

Our Company Advantage – Nearly 20 Years of Specialized Track Chain Expertise

With close to 20 years dedicated exclusively to researching, developing, and manufacturing sealed & lubricated track chains (and full undercarriage systems), we've built a reputation that matters most: trust from customers who run machines every day in tough conditions.

• Deep Material & Process Knowledge

We've refined our forging, heat treatment, and assembly over thousands of production runs. Using premium 35MnB steel for links, precision induction-hardened pins & bushings (HRC 52–56), and high-reliability floating seals means lower internal wear rates and chains that hold up in abrasive demolition, landfill, or pipeline work — often matching or exceeding OEM life in real-world mixed applications.

• Proven Track Record with Global Customers

Our chains are running on Caterpillar, Komatsu, and other track loaders/dozers in South America, Europe, Australia, and Africa. Fleet owners and independent operators keep reordering because the performance is consistent: reduced stretch, fewer seal failures, and extended roller/idler life — directly lowering your cost per hour.

• In-House Control from Start to Finish

We handle forging, CNC machining, heat treatment, and final assembly in our own facility. No outsourcing surprises — every batch gets full hardness testing, tensile checks, and seal integrity verification. This vertical integration keeps quality tight and lets us respond quickly to custom needs, like specific link counts or enhanced sealing for wet/muddy environments.

• Real Value Over Lowest Price

We're not chasing the cheapest imports. Instead, we focus on chains that deliver 4,500–6,500+ hours of reliable service in demanding jobs, backed by a 12-month / 2,000-hour warranty. Customers tell us the upfront savings vs genuine Cat, combined with longer intervals between replacements, makes the total ownership cost significantly lower.

Daily Maintenance Tips for 953 Track Chains

• Check track sag every 50 hours (25–35 mm is ideal on a 953).
• Clean packed mud from the chain daily – it grinds seals fast.
• Grease the carrier rollers and idlers per Cat schedule.
• If you ever see oil on the ground or a “flat” link, replace the chain immediately – one bad joint can destroy the whole undercarriage.
• When installing a new chain, always adjust the recoil properly and torque shoe bolts to spec (use thread locker).

FAQ

Q: Is this a complete track group or just the chain?

A: Just the chain assembly (links, pins, bushings, seals, master link). Shoes are sold separately.

Q: Will this work with my existing shoes?

A: Yes – standard 5/8" bolt pattern matches original.

Q: Do you sell the matching rollers and idlers?

A: Yes – we carry full undercarriage kits for the 953. Ask us for a matched set quote.