Why Choose the Prepacked MAT Version?

R&P Knowledge Hub

Compatibility: Fits many 7,000 lb trailer axle hubs using a 1.25" x 1.750" tapered spindle with 14125A outer bearing, 25580 inner bearing, 14276 outer race, 25520 inner race, and 10-225 double-lip grease seal.

Vehicle / System Fit: Common on cargo, livestock, equipment, and utility trailers built around this 7K bearing and race combination.

Installation Notes: One kit services one hub. Order two kits per axle. Always verify your spindle measurements and existing bearing numbers before ordering.

Performance Insight: This 7K setup uses the 14125A outer bearing stack, making it distinct from lower-capacity kits while keeping the same 25580 inner bearing used in several heavier tapered-spindle applications.

R&P Service Insight

These kits are commonly replaced during routine wheel-end service, after seal failure, when grease becomes contaminated, or when teardown shows roughness, heat discoloration, scoring, or visible wear in the bearings or races.

• Wear: Bearings and seals gradually lose tolerance through normal rotation, repeated towing cycles, and heat buildup over time.
• Exposure: Moisture, road grit, and dirty or broken-down grease can accelerate corrosion and premature wheel-end wear.
• Service Reality: A DIY owner may also need fresh grease, replacement dust caps, spindle hardware, or related hub and brake parts depending on what is found during disassembly.

Prepacked vs. Loose Bearing Kits

What a DIY Trailer Owner May Also Need

Features

• Complete one-hub service kit for many 7,000 lb trailer axles
• Fits 1.25" x 1.750" tapered spindle applications using 14125A / 25580 bearings
• Includes matched races, double-lip seal, tang washer, and cotter pin
• Retail-packed format is cleaner to store, easier to identify, and convenient to keep as a service spare

Specifications

Fitment / Application

Included Components