3500 / 5200 / 6000 / 7000 lbs V-Bend Hot-dip Galvanized Boat Trailer Torsion Axle – Heavy Duty Marine Axle Range for American Bass, Pontoon & Watercraft Trailers
Price on Request
Load Capacity: 3500~7000 lbs
Brake Type: Non-brake or Hydraulic Disc Brake
Finish: Dacromet or Hot-Dip Galvanized
Hub Face to Hub Face: Can be customized
Distance of Outside Mounting Bracket: Can be customized
3500–7000 lb V-bend torsion axle in hot-dip galvanized steel for bass boat, pontoon, jet ski and cargo trailers. Manufactured by Mr Liu Axle, this boat trailer torsion axle range is supplied at OEM wholesale to American boat trailer manufacturers, marine dealers and custom builders. Every axle is built to order: hub face-to-face width, outside mounting bracket distance, brake type and hub pattern are confirmed against your trailer specification before production.
At a Glance
- Load capacity: 3500 / 5200 / 6000 / 7000 lbs per axle
- Axle type: V-bend torsion axle with independent rubber suspension
- Finish: hot-dip galvanized (Dacromet optional)
- Brake options: unbraked idler or hydraulic disc brake
- Hub patterns: 5×4.5″, 6×5.5″, 8×6.5″ – USA standard
- Fitment: bass boat, pontoon, jet ski, utility and cargo trailers
Key Specifications
| Specification | Value / Options |
|---|---|
| Load capacity | 3,500 / 5,200 / 6,000 / 7,000 lbs per axle |
| Axle type | V-bend torsion axle, independent suspension |
| Tube finish | Hot-dip galvanized (standard) or Dacromet |
| Brake type | Unbraked (idler) or hydraulic disc brake |
| Hub pattern | 5×4.5″, 6×5.5″, 8×6.5″ – USA standard |
| Hub face to hub face | Customized to your specification |
| Outside mounting bracket distance | Customized to your specification |
| Typical use | Boat, marine and utility trailers, single and tandem |
Applications
- Bass boat trailers and fishing boat trailers
- Pontoon boat trailers and deck boat trailers
- Jet ski trailers and personal watercraft trailers
- Small watercraft trailers and kayak haulers
- Saltwater and freshwater marine trailers
- Single and tandem axle boat trailer setups
- The same V-bend range is also specified as a cargo trailer axle for enclosed, utility and food trailers
Design and Construction
V-bend geometry. The V-bend configuration allows the axle beam to drop below the trailer frame, providing critical ground clearance for low-profile boat hulls while maintaining proper tongue height for safe towing. Traditional straight axles sit too high for most boat trailers, causing hull interference and launch ramp scraping; the V-bend lowers the axle centerline without reducing load capacity.
Saltwater protection. Each torsion axle is hot-dip galvanized after fabrication, ensuring complete zinc coverage inside and outside the axle tube for maximum saltwater protection. Dacromet is available as an alternative finish for specific coating requirements.
Independent suspension. The torsion design gives each wheel independent travel with rubber elements inside the axle beam. There are no leaf springs, shackles or pivot bushings to service, which reduces maintenance and keeps the trailer stable at highway speeds.
Brake integration. Supplied unbraked (idler) or with hydraulic disc brakes, with USA-standard hub patterns for straightforward parts matching in the North American market.
Customization and OEM Supply
| Parameter | Option |
|---|---|
| V-bend drop angle | Custom |
| Hub face-to-face | Custom |
| Mounting bracket spacing | Custom |
| Finish | Hot-dip galvanized / Dacromet |
| Brake | Unbraked / hydraulic disc brake |
| Hub pattern | 5×4.5″, 6×5.5″, 8×6.5″ |
| Pricing | On request, OEM wholesale |
| Supply | Factory-direct from China |
Frequently Asked Questions
1. How do I select the right capacity — 3500, 5200, 6000 or 7000 lbs?
Match the axle rating to the load the axle will actually carry. For a single axle, take the combined boat and trailer weight (the trailer GVWR) and choose the next rating above it: a typical bass boat rig on a single axle is covered by the 3500 lbs torsion axle, while heavier pontoon or multi-hull boats step up to 5200–7000 lbs. On tandem axles, divide the load between the two positions and confirm the per-axle share with your frame layout. If in doubt, send your GVWR and hull type with your enquiry and the factory will confirm the rating.
2. Is the axle suitable for saltwater use?
Yes. The axle is hot-dip galvanized after fabrication, which deposits zinc on the inside and outside of the tube and on the welded brackets, giving complete coverage for saltwater exposure. Dacromet is available as an alternative finish. Standard marine maintenance — rinsing after saltwater use and regular bearing service — still applies.
3. Can you build the axle to my dimensions?
Yes. Hub face-to-face and outside mounting bracket distance are customized per order. Send your drawing or measurements — hub face width, bracket spacing, spindle and hub pattern, brake requirement — and the factory will produce to your specification. Custom V-bend drop angles are also available.
4. Can I order the axle unbraked, or with brakes?
Both. The range is available as an unbraked idler axle or with hydraulic disc brakes. Specify the brake requirement, hub pattern and whether the trailer is single or tandem when requesting a quote, so the brake line configuration and components are included in the build.
5. What are the MOQ, lead time and pricing for OEM or dealer orders?
Pricing is on request and quoted at OEM wholesale rates for manufacturers, marine dealers and custom builders. MOQ and lead time depend on specification and quantity and are confirmed on the quotation. Contact the factory with your target quantity and delivery schedule for a firm lead time.
Related Trailer Parts
Complete your boat trailer axle system with our trailer brake drums and marine hub assemblies. We also supply standard torsion axles and spring axles for non-marine trailer applications. For reference on V-bend torsion axles and boat trailer axle components, see Venture Trailers Torsion Axle Parts, a leading American boat trailer parts supplier.
This boat trailer torsion axle range is available at OEM wholesale pricing for American boat trailer manufacturers, marine dealers and custom builders. Get a quote for custom V-bend angles, hub face widths and saltwater-rated specifications, or contact the factory directly by email or WhatsApp.
