At a Glance
- SKU: BK2-256-GREASE+SLEEVES
PRODUCT INFORMATION
Product Details
TRAILER HUB & BEARING LUBRICATION KITS
1.98 UFP Kit w/Caps O-rings Tube of Grease 1.68" x 2.56" Seals Bearings Races
Complete 1-axle overhaul service kit for 3,500 lb UFP and Vault hybrid oil hubs. Features genuine spec bearings, seals, caps, wear sleeves, 14 oz Vault lubricant, and special UFP-only L68110 inner races.
SKU: BK2-256-GREASE+SLEEVES 3,500 lb Axle Rating Complete 1-Axle Kit (2 Hubs)
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part / Kit Number | BK2-256-GREASE+SLEEVES |
| Brand | R & P Carriages |
| Product Type | 3.5K Hybrid Oil Hub Rebuild Kit |
| Inner Race | L68110 (2.328" OD - UFP Fitment) |
| Inner Bearing | L68149 (1.378" ID) |
| Outer Race & Bearing | L44610 Race (1.980" OD) / L44649 Bearing (1.0625" ID) |
| Oil Seal / Cap OD | 1.68" x 2.56" Seal / 1.98" OD Vault Cap |
| Quantity Included | 1 Axle Service Kit (Rebuilds 2 Hubs) |
Fitment / Application
| Category | Details |
|---|---|
| Axle System | 3,500 lb UFP / Vault Hybrid Oil Axles |
| Hub Compatibility | Fits UFP 3.5K hubs requiring 2.328" OD inner races |
| Fitment Note | L68110 race fits ONLY UFP hubs; does NOT fit standard 2.361" OD L68111 hubs |
| Fitment Verification | Verify hub bore ID (2.328"), cap thread/bore (1.98"), and spindle seal journal (1.68") prior to installation |
Top Features
| Feature | Buyer Benefit |
|---|---|
| UFP-Specific L68110 Race | Ensures exact 2.328" OD press fit for proprietary UFP 3,500 lb hub castings. |
| Vault Hybrid Oil Included | Includes 14 oz cartridge (07036U) for thermal expansion sealing and friction reduction. |
| Wear Sleeve & Lube Hole | Restores seal journal wear surface to prevent oil leaks on aged spindles. |
| Complete Dual Hub Kit | Includes all bearings, races, seals, O-rings, and caps to refresh both sides of 1 axle. |
R&P Knowledge Hub
Compatibility: Specially curated for 3,500 lb capacity trailer axles equipped with UFP / Vault hybrid oil hub assemblies. Requires a 1.98" cap bore, 1.68" spindle seal journal, 1.378" inner bearing ID, and 1.0625" outer bearing ID.
UFP Special Race Notice: The L68110 race has an outside diameter of 2.328" and is a special race that fits ONLY UFP hubs. Standard non-UFP 3.5K hubs require the L68111 race (2.361" OD). Always measure the hub housing bore or confirm your trailer uses UFP hubs before ordering.
Installation Notes: Thoroughly clean hub cavities prior to pressing new races. Use proper driver tools to avoid dimpling race surfaces. Inspect cap threads and replace O-rings (32742U) during every teardown.
Performance Insight: Vault Hybrid Lubrication systems utilize specialized grease-oil hybrids that liquefy under rotational heat and revert to semi-solid state at rest, maintaining continuous protection without routine repacking.
Features
UFP L68110 Inner Race
Engineered with a 2.328" outside diameter specifically for UFP 3,500 lb hub castings, ensuring proper press tolerance and bearing alignment.
Vault 14 oz Hybrid Lubricant Included
Includes one 07036U tube of genuine Vault hybrid oil formulation that provides superior moisture displacement and high-temp bearing lubrication.
Complete 1-Axle Overhaul Kit
Contains all required inner/outer bearings, races, oil caps, O-rings, double-lip seals, wear ring sleeves, and lube to rebuild both left and right hubs.
Spindle Protection Wear Sleeves
Includes two 33517U 3.5K wear ring sleeves with lube hole to renew worn spindle sealing surfaces and prevent oil loss.
Included Components
| Quantity | Item / Part Number | Description / Specification |
|---|---|---|
| 1 | 07036U | 14 OZ Hybrid Vault Oil Cartridge |
| 2 | 07502U | Oil Cap, Vault / UFP, 3500#, 1.98" OD |
| 2 | 32123 | Oil Seal, 1.68" x 2.56", Fits Vault 3500# |
| 2 | 32742U | Oil Cap O-Ring, Vault / UFP, 1.98" |
| 2 | 33517U | 3.5K Wear Ring Sleeve w/ Lube Hole Wear Sleeve |
| 2 | L44610 | Outer Race, 1.9800" OD (Fits L44643 / L44649) |
| 2 | L44649 | Outer Bearing Cone, 1.0625" ID |
| 2 | L68110 | Inner Race, 2.328" OD (Fits UFP Hubs Only) |
| 2 | L68149 | Inner Bearing Cone, 1.378" ID |
Important Fitment Note: The L68110 inner race included in this kit has a 2.328" outside diameter and is a special race designed to fit ONLY proprietary UFP 3,500 lb trailer hubs. Standard 3,500 lb hubs use the larger L68111 race (2.361" OD). Please measure your hub bore or verify UFP brand origin prior to assembly. Always inspect bearing journals, wear sleeves, and cap threads prior to final installation.
UFP 3500 lb axle rebuild kit, Vault hybrid oil cap kit 07502U, L68110 race 2.328 OD, L68149 bearing 1.378 ID, L44649 outer bearing L44610 race, Vault 14oz cartridge 07036U, UFP oil seal 32123 1.68x2.56, Vault O-ring 32742U, UFP wear ring sleeve 33517U, special UFP race L68110, marine trailer hub repair kit, 3.5K trailer axle hybrid oil hub overhaul
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