Trailer Wheel Hub Assembly

20+ years US-focused trailer hub pro manufacturer. Advanced CNC & R&D team, adhering to ISO/US auto standards. Customization is core: standard products + one-stop solutions. Fully support drawings/params customization with R&D full-process docking.

Product Overview

5000-7000lb (3175kg) US-market idler hub (core load-bearing). Heavy-load reliable, smooth rotation, fits medium-duty cargo/RV/agricultural trailers (FMVSS compliant). Customizable: load/size/environment.

Core Specifications

Parameter Category	Specific Specification	Key Description
Rated Load Capacity	5000-7000lb（3175kg）	Axle-matched; 5000-7000lb customizable
Brake Type	Idler (Non-Brake)	No brakes; relies on tow vehicle
Compatible Axle Diameter	1.75-2.125 inches	Fits US medium-heavy axles; non-standard custom
Bearing Configuration	Double-Row Tapered Roller Bearings	High load/impact resistance, even distribution
Hub Material	High-Strength Cast Iron	ASTM A536 ductile iron (durable, wear-resistant)
Surface Treatment	Hot-Dip Galvanization / Powder Coating	Corrosion-resistant; coastal/humid custom
Bolt Specification	6/8 Holes, 5/8″-18 UNF Thread	US auto-grade; holes/threads customizable

Key Features

Double-Row Bearings: Heavy load, anti-vibration.
Hub Shell: Precision-cast iron, durable.
Connecting Bolts: High-tensile steel, secure.
Oil Seal: Temp-resistant, anti-leakage.
Dust Cover: Debris-proof, long-life.

Manufacturing & Quality Assurance
Manufacturing Processes

Material: Ductile iron casting + heat treatment.
Machining: CNC (±0.02mm) fits US axles.
Surface: Galvanization + powder coating (anti-rust).
Assembly: “Clean-Fit-Tighten-Inspect” + torque check.

Quality Inspection

Load Test: 24h 1.2x load (no deformation = pass).
Dynamic Balance: Runout < 0.2mm (low vibration).
Sealing Test: 50PSI air test (anti-leakage).
Material Test: Spectral analysis (meets ASTM A536).

III. Application Scenarios & Installation Maintenance

Application Scenarios:

Cargo Trailers: Dry van/flatbed, stable long-haul.
RV/Agricultural: Heavy load, rugged use.

Installation & Maintenance:

Installation: Clean axle; 2/3 lithium grease; torque 120-150 ft-lbs; seal.
Maintenance: Inspect 4m/8k miles; grease semi-annually (quarterly harsh env).
Abnormality: Replace damaged seals; stop on noise/overheating.

Product Advantages
Core Advantages

Market Fit: FMVSS compliant, fits top US brands.
Reliable: Double-row bearings + cast iron, 30% less maintenance.
Weather Resistant: Dual-layer for US climates.
Durable: 20% longer life than industry avg.
Customization: One-stop (drawings/params); custom tested.

About Us

20 years of trailer axle manufacturing experience. Specialized in Australian customization (45/50mm options). Compliant with standards, 24h after-sales, on-time delivery to Australia.

Attention Notes

All-in-one hub set—comes ready to install, no hunting for extra parts.

Smooth spinning cuts friction, keeps wheels rolling steady.

Sealed tight to block dirt, water, and grime—lasts longer.

Fits most trailer sizes, from small utility to big hauls.

Sturdy build handles heavy loads without wobbling or wear.

Easy to swap out, basic tools enough for quick replacement.