Swing Arm 40mm Stub Assembly with Bush
Product Title
SA4B-LM Swing Arm Assembly Bush for 40mm Stub — 40mm x 250mm 1000KG Stub Axle with LM Bearings, Dust Cap & Oil Seal
Product Description
The SA4B-LM Swing Arm Assembly Bush is a precision-engineered swing-arm solution built for reliable, long-lasting performance in swing-away spare wheel carriers, rear bull-bar arms and heavy-duty trailer hinges. Supplied complete with a 40mm × 250mm stub axle rated 1000KG and high-quality LM (Holden) bearings fitted with dust caps and oil seals, this assembly delivers smooth rotation, protected bearing life and dependable load handling for 4WDs, trailers and custom fabrications.
Key Features
- Stub axle: 40mm × 250mm, machined to tight tolerances for a true running fit.
- Load rating: 1000KG
- Bearings: LM (Holden style) bearing set with dust cap and oil seal for superior contamination protection.
- Bush design: Precision bush for minimal play and repeatable, low‑friction operation.
- Common uses: Rear swing‑away arms, spare wheel carriers, trailer swing pivots, custom bumper mounts.
- Finish: Raw or corrosion‑resistant finish options — confirm finish at time of order.
Specifications
| Attribute | Specification |
|---|
| SKU | SA4B-LM |
| Stub axle | 40mm x 250mm |
| Rated capacity | 1000KG |
| Bearings | LM (Holden) bearings with dust cap & oil seal |
| Applications | Spare wheel carriers; rear bull-bar swing arms; trailer pivots |
Benefits
- Reliable load support — 1000KG-rated axle gives confidence for spare wheels and light trailer duties.
- Protected bearings — dust caps and oil seals keep water, mud and grit away from bearing surfaces, extending service intervals.
- Smooth pivot action — engineered fit between bush, axle and bearings minimises play and noise.
- Versatile — works with common LM bearing configurations used across Australian trailer and 4WD aftermarket parts.
Typical Applications
- Swing‑away spare wheel brackets on 4WDs and light commercials.
- Rear bull‑bar swing arms and heavy‑duty bumper pivots.
- Small trailer pivot and hinge assemblies used in agricultural, leisure and trade applications.
- Custom fabrication projects requiring a compact, serviceable hinge system.
Installation Tips
- Verify your bracket internal bore and bush outer diameter for press or interference fit; machine or ream bracket if necessary.
- Use recommended grade locking hardware (castle nut with split pin, or suitable nyloc/lock nut) and torque to specification.
- After fitting, grease bearings via nipple (if supplied) and inspect seals for correct seating before first use.
- Re‑check bearing preload and fastener torque after initial few hundred kilometres or first heavy use in wet/dusty conditions.
