MAT Trailer Wheel Bearing Kit for 5,200 lb Axles – #42 Spindle, LM67048/25580, 10-2125 Seal (BEK-5.2K)
Factory-sealed one-hub bearing kit for common 5,200 lb trailer axles using the #42 tapered spindle.
This complete prepacked bearing kit services one 5,200 lb trailer hub and includes matched bearings, races, a double-lip grease seal, tang washer, and cotter pin. Built around the common #42 tapered spindle, it offers a cleaner, easier-to-store alternative to loose component kits while giving DIY trailer owners a ready spare for routine service or roadside repair.
At-a-Glance Fitment
Shop the BEK Kit Family
These retail-sealed MAT bearing kits give customers a branded, grab-and-go option across the most common trailer axle ranges.
3,500 lb Axle
Spindle: #84 spindle, 1.063" x 1.378"
Bearings: L44649 / L68149
Use Case: Common light-duty trailer hub service
Shop 3.5K Kit5,200 lb Axle
Spindle: #42 spindle, 1.25" x 1.75"
Bearings: LM67048 / 25580
Use Case: Heavier utility and equipment trailer service
Current Item6,000 lb Axle
Spindle: 1.25" x 1.75" tapered spindle
Bearings: 15123 / 25580
Use Case: Heavy-duty trailer wheel-end service
Shop 6.0K Kit7,000 lb Axle
Spindle: 1.25" x 1.75" tapered spindle
Bearings: 14125A / 25580
Use Case: Higher-capacity axle service and spare prep
Shop 7.0K KitWhy Choose the Prepacked MAT Version?
Retail-Sealed Format
This factory-packed presentation is cleaner and easier for trailer owners to identify than loose parts in a bag or bin.
Grab-and-Go Convenience
Well suited for counter sales, routine service, and fast online ordering when the buyer wants a complete one-hub kit.
Easy Spare Storage
The prepacked format is easy to keep in a toolbox, trailer compartment, or service truck as a ready spare.
Fast Visual Verification
Clear axle and spindle callouts help reduce hesitation for DIY buyers who want confidence before opening up the hub.
R&P Knowledge Hub
Compatibility: Fits common 5,200 lb trailer hubs using the #42 tapered spindle with LM67048 outer bearing, 25580 inner bearing, LM67010 and 25520 races, and a 10-2125 grease seal measuring 2.125" ID x 3.376" OD.
Vehicle / System Fit: Commonly used on utility, equipment, cargo, and similar trailer hub systems built around the same bearing and seal set.
Installation Notes: One kit services a single hub. Order two kits per axle. Always verify the numbers stamped on your existing bearings and confirm seal dimensions before ordering.
Performance Insight: This style of prepacked kit makes service simpler for DIY trailer owners by keeping matched components together in one retail-ready package instead of loose individual parts.
R&P Service Insight
Bearing kits are typically replaced during scheduled wheel-end service or after teardown shows contaminated grease, seal leakage, rough bearing rotation, heat discoloration, scoring, or wear in the existing components.
- Wear: Bearings and seals gradually lose tolerance through normal rotation and repeated towing cycles
- Exposure: Moisture, road grit, and contaminated grease can accelerate corrosion and premature wear
- Service Reality: DIY owners may also need fresh grease, a dust cap, matching races, or replacement spindle hardware depending on what is found during disassembly
Prepacked vs. Loose Bearing Kits
| Format | Best For | Main Advantage | Typical Buyer |
|---|---|---|---|
| Prepacked MAT Kit | DIY service, spare storage, and retail counter sales | Cleaner presentation, easier identification, shelf-ready packaging | Trailer owner, walk-in customer, first-time service buyer |
| Loose Kit | Shop use and cost-first purchases | Lower entry cost and simple parts-only format | Repeat buyer, installer, service shop |
What a DIY Trailer Owner May Also Need
Common Service Items
- High-temp wheel bearing grease
- Brake cleaner
- Fresh cotter hardware if the old parts are damaged
- Grease cap or E-Z Lube plug if the original is worn or missing
Possible Additional Parts
- Matching races if the old race surfaces are pitted or scored
- Replacement dust cap or grease cap
- Spindle washer, tang washer, or nut hardware as needed
- Related hub or brake parts if additional wear is found during teardown
Features
- Complete one-hub kit for common 5,200 lb trailer axles
- Precision-matched bearings and races for #42 spindle applications
- Double-lip 10-2125 grease seal helps retain grease and reduce contamination
- Works well as both a routine service kit and a ready spare for trailers that use the same bearing and seal set
Specifications
| Specification | Detail |
|---|---|
| Type | Trailer wheel bearing kit |
| Application | One-hub service kit for 5,200 lb trailer axles |
| Fitment | #42 spindle applications using LM67048 / 25580 bearing set |
| Outer Bearing | LM67048 — 1.25" ID |
| Inner Bearing | 25580 — 1.75" ID |
| Outer Race | LM67010 — 2.441" OD |
| Inner Race | 25520 — 3.265" OD |
| Grease Seal | 10-2125 double-lip grease seal — 2.125" ID x 3.376" OD |
| Hardware | Tang washer and cotter pin included |
| Part Number | BEK-5.2K |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer wheel hubs on many utility, cargo, equipment, and similar trailer applications |
| Axle / Capacity | 5,200 lb axle rating |
| Spindle | #42 tapered spindle — 1.25" outer journal x 1.75" inner journal |
| Notes | Verify existing bearing numbers and seal dimensions before ordering. One kit services one hub; order two kits per axle. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Outer bearing — LM67048, 1.25" inner diameter |
| 1 | Inner bearing — 25580, 1.75" inner diameter |
| 1 | Outer race — LM67010, 2.441" outer diameter |
| 1 | Inner race — 25520, 3.265" outer diameter |
| 1 | 10-2125 double-lip grease seal — 2.125" ID x 3.376" OD |
| 1 set | Tang washer and cotter pin hardware |
Verify all specifications, measurements, bearing numbers, and seal callouts before installation.
