Lippert 3500 lb Trailer Axle Beam - 92" Hub Face - Straight 3" Tube - EZ Lube
Lippert 3500 lb straight trailer axle beam with 92" hub face, 2.4" axle tube, EZ Lube spindles, and loose spring perches included for final spring-center placement.
Overview
This Lippert 3500 lb trailer axle beam is a straight cambered replacement axle beam for trailer builds and service work where the 92" hub face, spindle configuration, tube size, and spring-center requirements match the trailer. This listing includes the bare axle beam and loose spring perches for 3" axle tube applications.
R&P Service Insight
Axle replacement should be matched by measurement first, not by trailer model alone. Hub face, spring center, spindle style, tube diameter, and brake/hub setup all matter before installation.
- Hub Face: This axle beam is listed with a 92" hub face measurement.
- Spring Perches: The included SP-2375 spring perches ship loose unless welding is specifically requested and confirmed.
- Hub / Brake Match: This beam is commonly used with 3500 lb 5-lug hub and 10" brake setups when bearing, seal, and brake dimensions match.
R&P Knowledge Hub
Compatibility: Verify the 92" hub face, spindle setup, 3" tube size, bearing set, seal size, and spring-center requirement before ordering.
Trailer System Fit: Intended for compatible 3500 lb trailer axle applications using matching hubs, drums, brakes, bearings, seals, and suspension geometry.
Installation Notes: The included spring perches are loose and must be positioned and welded at the correct Spring Center before the axle is placed into service.
Performance Insight: Proper axle measurement helps maintain wheel placement, tracking, brake alignment, and suspension geometry after replacement.
Brand & Fitment Note
Product Brand: Lippert axle beam sold by R&P Carriages.
Application Reference: Trailer, camper, utility trailer, hub, drum, brake, and bearing references in this listing describe compatibility targets only where the customer’s measurements and configuration match.
What This Means: This listing is for a Lippert 3500 lb trailer axle beam kit with loose spring perches included.
Before Ordering: Verify hub face, spring center, axle capacity, tube diameter, brake flange spacing, spindle dimensions, hub/brake compatibility, bearing set, seal size, and included components before installation.
R&P Repair Insight
A trailer axle beam should not be selected by weight rating alone. A 3500 lb axle with the wrong hub face, wrong spring-center placement, or mismatched spindle/hub components can create fitment and safety problems.
- Measure Hub Face: Confirm the distance from hub mounting face to hub mounting face before replacing the axle.
- Confirm Spring Center: Measure center-to-center between the leaf springs or existing spring perches before requesting welded perches.
- Match Service Parts: This axle uses L44649 and L68149 bearings with a 10-19 seal when paired with compatible 3500 lb hub/drum components.
Features
3500 lb Trailer Axle Beam
Designed for compatible 3500 lb trailer axle applications where the axle rating and measurements match the trailer.
92" Hub Face Measurement
Listed with a 92" hub face for trailers requiring this wheel-spacing dimension.
3" Tube With EZ Lube Spindles
Standard 3" axle tube configuration with EZ Lube spindle design for compatible 3500 lb running gear setups.
Loose Spring Perches Included
Includes two SP-2375 spring perches for 3" axle beam installation; perches ship loose by default.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 3500-92-3-KIT |
| Brand | Lippert |
| Product Type | Bare trailer axle beam kit with loose spring perches |
| Capacity | 3500 lb |
| Hub Face | 92" |
| Tube Diameter | 3" |
| Axle Style | Straight cambered axle beam |
| Spindle Style | EZ Lube |
| Brake Flange to Flange | 85.66" |
| Bearing Shoulder to Shoulder | 88.19" |
| Spindle End to End | 96.38" |
| Common Bearing / Seal Reference | Uses L44649 and L68149 bearings with 10-19 seals when paired with compatible 3500 lb hub/drum assemblies; bearings and seals are not included. |
| Included Perches | Two SP-2375 spring perches for 3" axle beam; loose by default. |
Fitment / Application
| Category | Details |
|---|---|
| Trailer System | Compatible 3500 lb trailer axle applications |
| Primary Fit | Trailers requiring a 92" hub face, 3" tube, straight cambered beam, and EZ Lube spindle configuration |
| Related Running Gear | Commonly used with compatible 5-lug hub or 10" electric brake assemblies when bearing and seal fitment match |
| Important Note | Spring perches are included loose and must be welded at the correct Spring Center before the axle is used. |
Included Components
| Quantity | Item |
|---|---|
| 1 | 3500-92-3-KIT - Lippert 3500 lb bare trailer axle beam, 92" hub face, 3" tube, straight, EZ Lube, USA made |
| 2 | SP-2375 - Spring perch for 3" axle beam, shipped loose unless welding is requested and confirmed |
What Comes in the -KIT: Spring Perches Are Included Loose
This -KIT includes the axle beam and loose spring perches / spring seats. The spring perches are included as separate pieces. Included does not mean welded.
Spring perches ship loose by default. They are not welded to the axle tube before shipment unless the customer specifically requests perch welding in the order notes, provides the correct Spring Center measurement, and R&P confirms the weld-on request before the axle ships.
Repetition matters: If the listing says “spring perches included,” that means loose spring perches are included with the kit. It does not mean the spring perches are already installed, welded, or ready for towing.
When Will R&P Weld the Spring Perches?
R&P may weld the spring perches before shipment only when the order clearly gives us the information needed to do it correctly.
- The customer must request welded spring perches in the order notes.
- The customer must provide the Spring Center measurement.
- R&P must confirm the weld-on request before shipment.
How to Find Your Spring Center Measurement
Spring Center is the distance from the center of one leaf spring to the center of the opposite leaf spring. This is the measurement used to locate where the spring perches need to be welded on the axle tube.
- Best method with old axle: Measure from the center of one existing spring perch / spring seat to the center of the opposite spring perch / spring seat.
- Best method from the trailer: Measure from the centerline of the left leaf spring pack to the centerline of the right leaf spring pack where the axle sits.
- Leaf spring center bolt method: Measure from the center of the center bolt / locating pin on one spring pack to the center of the center bolt / locating pin on the other spring pack.
- Do not measure outside-to-outside. Spring Center is a center-to-center measurement.
- Do not guess from deck width. Deck width can be helpful context, but it is not a substitute for the actual Spring Center measurement.
Axle Measurement Diagram
Use the axle measurement diagram below as a visual reference while confirming axle dimensions and installation details. Spring Center must still be measured center-to-center at the trailer’s leaf springs or existing spring perches.
Why Welding the Perches Matters
This image shows a real-world installation problem where loose spring perches were not welded before use and brake wiring was torn out. This is exactly why the axle must not be installed, towed, or placed into service while the spring perches are still loose.
Loose perches can allow the axle to move or rotate out of its intended installed position. That can damage brake wiring, brake components, suspension parts, tires, and the trailer. The perches must be properly welded before road use.
| Question | Answer |
|---|---|
| Are spring perches included in the -KIT? | Yes. The spring perches / spring seats are included as loose parts. |
| Are the spring perches welded on by default? | No. They ship loose by default. |
| Can R&P weld the perches before shipping? | Only if the customer requests it in the order notes, provides the correct Spring Center measurement, and R&P confirms the request before shipment. |
| What measurement is needed for welding? | Spring Center: center of one leaf spring / spring perch to the center of the opposite leaf spring / spring perch. |
| Can the axle be used with loose perches? | No. Do not install, tow, or place the axle in service until the perches are properly welded. |
| What can happen if perches are not welded? | Loose perches can allow the axle to move or rotate, which can damage brake wiring, brake parts, suspension components, tires, and the trailer. |
| Which way does camber face? | If the axle is cambered, the arch goes up in the middle when installed. |
Order Note Wording Customers Can Use
Customers who want R&P to weld the spring perches should put clear instructions in the order notes before checkout.
