Pair Trailer Stub Axle Assembly Kit 5 on 4.5 Idler Hubs #84 Round Spindles
Two-side idler stub axle assembly kit for compatible trailer repair and fabrication work using 5 on 4.5 idler hubs, #84 round non-flanged spindles, L44649 / L68149 bearing kits, and matching spindle hardware.
Specifications
| Specification | Detail |
|---|---|
| Part Number | STUB-84-545-H-X2 |
| Brand | R&P Carriages |
| Product Type | Pair of idler stub axle assembly kits |
| Hub Type | Idler hub, 3500 lb style |
| Hub Bolt Pattern | 5 on 4.5" |
| Wheel Stud / Lug Nut Size | 1/2-20 |
| Spindle Type | #84 round spindle, non-flanged |
| Spindle Tail Size | 2" x 3.37" |
| Bearing Reference | L44649 / L68149 bearing kit reference |
| Brake Flange | Not included / non-flanged spindle |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer idler hub and stub spindle service applications |
| Primary Fit | Applications using #84 round non-flanged spindles with L68149 inner bearing and L44649 outer bearing requirements |
| Wheel Fit | Trailer wheels requiring 5 on 4.5" bolt pattern and 1/2-20 lug nuts |
| Notes | Verify spindle dimensions, bearing numbers, seal fit, hub bolt pattern, wheel stud size, lug nut style, axle tube fit, and required load rating before ordering or installation. |
Overview
This R&P Carriages STUB-84-545-H-X2 kit is built as a matched two-side trailer idler stub axle assembly package. It includes the hubs, #84 round non-flanged spindles, bearing kits, spindle hardware, cotter pins, washers, and lug nuts listed in the included components table below. It is intended for compatible trailer repair or fabrication work where the hub pattern, spindle style, bearing set, spindle tail dimensions, and installation requirements match your trailer setup.
R&P Service Insight
Stub axle assemblies must be matched by more than bolt pattern alone. Confirm the spindle style, bearing combination, hub pattern, washer and nut size, lug nut seat style, and tail shaft dimensions before welding or final installation.
- Quantity Check: This listing is for two sides, not a single hub or one spindle only.
- Bearing Match: Verify L68149 inner and L44649 outer bearing requirements before ordering.
- Spindle Check: Confirm #84 round non-flanged spindle style with 2" x 3.37" tail dimensions.
R&P Knowledge Hub
Compatibility: Intended for compatible trailer idler hub and stub spindle applications using #84 round non-flanged spindles, 5 on 4.5 idler hubs, L68149 inner bearings, and L44649 outer bearings.
Vehicle / System Fit: Trailer axle repair, idler hub service, utility trailer axle fabrication, and matching stub axle applications where all measurements and components match.
Installation Notes: Welding and axle service should be performed by a qualified installer. Confirm axle alignment, spindle orientation, bearing preload, hub seating, cotter pin placement, lug nut torque requirements, and wheel fit before use.
Performance Insight: Matching the hub, spindle, bearing set, lug nut size, and spindle hardware helps prevent bearing mismatch, wheel fitment problems, and unsafe installation.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: This listing describes a curated trailer stub axle assembly kit for compatible applications where measurements, bearing numbers, hub pattern, spindle style, and installation requirements match.
What This Means: This listing is for an R&P Carriages kit assembled from the components listed below. It is not a complete beam axle and is not a guaranteed direct-fit OEM part.
Before Ordering: Verify measurements, spindle style, bearing numbers, seal fit, wheel bolt pattern, wheel stud size, lug nut style, axle tube fit, and included components before installation.
R&P Repair Insight
Before replacing or fabricating trailer stub axle ends, compare your existing spindle and hub assembly to the kit contents and measurements in this listing. A general 3500 lb style hub reference alone is not enough to confirm fitment.
- Hub Check: Confirm 5 on 4.5" bolt pattern and 1/2-20 wheel stud / lug nut requirements.
- Spindle Check: Confirm SP-20084 #84 round non-flanged spindle configuration.
- Hardware Check: Confirm use of 1" spindle nuts, 1" spindle washers, cotter pins, and 60-degree coned lug nuts before assembly.
Features
Two-Side Assembly Kit
Includes matched quantities for both sides of a compatible trailer idler stub axle setup.
5 on 4.5 Idler Hubs
Uses idler hubs with 5 on 4.5" trailer wheel bolt pattern and 1/2" wheel studs.
#84 Round Non-Flanged Spindles
SP-20084 spindle configuration with 2" x 3.37" tail dimensions for compatible applications.
Bearing Kits Included
Includes HD-3500-KIT bearing kits with L44649 / L68149 bearing reference shown in the bill of materials.
Included Components
| Quantity | Part Number | Item |
|---|---|---|
| 2 | 165649 | Cotter pins, 1/8" x 1-3/4" |
| 2 | 84545-1 | Idler hubs, 3500 lb style, 5 on 4.5, 1/2" studs |
| 2 | FA-SN100 | 1" spindle castle nuts / axle nuts / spindle nuts |
| 2 | HD-3500-KIT | Hub / drum bearing kits, 3500 lb, L44649 / L68149 |
| 2 | SP-20084 | #84 round spindles, 2" x 3.37", non-flanged |
| 2 | SW100 | 1" spindle round washers |
| 10 | X1023R | 1/2-20 x 13/16" lug nuts, 60-degree coned |
