28580 Bearing Cone – 2″ ID – Trailer Axle Inner Bearing – 10K GD
28580 Trailer Bearing Cone 2″ Inner Diameter – Heavy-Duty Inner Axle Bearing for 10K GD Axles Replace worn or damaged inner wheel bearings with the industry-standard 28580
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28580 Trailer Bearing Cone
2″ Inner Diameter – Heavy-Duty Inner Axle Bearing for 10K GD Axles
Replace worn or damaged inner wheel bearings with the industry-standard 28580 tapered roller bearing cone, built for high-capacity trailer axles.
With a 2.000″ inner diameter, the 28580 is the inner bearing on 10,000–12,000 lb general-duty (GD) trailer axles riding a #99 spindle. Precision-ground for smooth hub rotation and dependable towing under heavy loads.
🔧 Key Features
✔ Heavy-Duty 10K GD Rating
Engineered for 10,000–12,000 lb general-duty axle hubs.
✔ Precision-Machined Rollers
Smooth rotation with reduced friction and heat buildup.
✔ Industry Standard Fit
Direct replacement on AL-KO, Rockwell American and Hayes 10K GD running gear.
✔ Durable Construction
Premium-grade steel rated for sustained highway speeds and demanding loads.
✔ Easy Replacement
Drop-in fit for #99-spindle hub assemblies.
📐 Specifications
| Specification | Detail |
|---|---|
| Part Number | 28580 |
| Brand | TRP |
| Type | Bearing Cone (Inner Portion Only) |
| Inner Diameter (ID) | 2.000″ |
| Cone Width | 0.969″ |
| Compatible Race / Cup | 28521 |
| Spindle | #99 |
| Typical Axle Rating | 10,000–12,000 lb GD |
| Bearing Style | Tapered Roller |
🚚 Applications & Fitment
Used as the inner bearing on:
• 10,000 lb GD trailer axles
• 12,000 lb GD trailer axles
• AL-KO 10K GD axles
• Rockwell American 10K axles
• Hayes 10K GD axles
• Equipment & dump trailers
• Gooseneck & car-hauler trailers
Typically paired with:
• 28521 cup / race
• 25580 outer bearing
• #99 spindle grease seal
⚠ Fitment Warning
This bearing fits:
✔ #99 spindle hubs (2.000″ inner journal)
✔ 10K–12K GD hub assemblies
✘ 3,500 lb axles (use L44649)
✘ 5,200–7,000 lb axles (use 25580 inner)
✘ Oil-bath hub systems
Always verify the bearing number stamped on your existing bearing before ordering.
📦 Sold Individually
Race (28521) sold separately unless purchasing a full kit.
📞 Call/Text: 517-225-1991 🌐 AAATrailer.com
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We will be happy to assist you with eligible returns, the return instructions, and the shipping address. If you need a return or exchange, send us an email so we can discuss a replacement.
28580 Bearing Cone – 2″ ID – Trailer Axle Inner Bearing – 10K GD
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$29.99
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28580 Bearing Cone – 2″ ID – Trailer Axle Inner Bearing – 10K GD
$29.99
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