Peak 750kg Independent Trailer suspension units & 4 inch PCD


Peak RU7U440 Pair 750kg cap. R/S units U/B-HG505

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SKU: RU7U440 Category: Tag:


Peak 750kg Independent Trailer suspension units & 4 inch PCD

Peak Dynamics R-flex insert 750 kg capacity suspension units complete with pre drilled mounting holes (dimensions on gallery image) &  include sealed hubs with taper roller bearings, wheel studs, nuts, hub cap & grease nipple.

With a 93mm distance from drop arm to hub face, this unit will accommodate some 4″PCD wheels with a positive offset.

Ideal to replace worn units as fitted to Indespension trailers and many other makes too.

Peak Indespension units
Peak R.flex insert Indespension units


Peak Dynamics high-density rubber insert technology (R-flex insert) comprises of a central shaft and a metal case, four pretensioned high density rubber inserts are then placed between the two. When the force of loading is applied to the unit, the high density rubber compress within the casing and thus provide suspension. The rubber inserts are engineered to specific load deflection characteristics and provide a reliable and predictable suspension solution giving a long service life.


  • Combines a damper, spring and bearing into one unit.
  • Silent operation due to no metal contact within the unit.
  • Completely maintenance free.
  • Very long service life due to high quality rubber inserts.
  • Efficient vibration reduction.
  • Can withstand temperatures of -40°C to +80°C.

We are official parts stockists for : Knott- Avonride , Bradley – Dixon-Bate, Alko-Kober  ,Maypole and Aspock lighting systems.

We are UK official importers for Lider trailers and  sole Lancashire stockist for Erde Trailers we also stock Meredith and Eyre trailers.

Buy with confidence from a NTTA Quality secured towbar and trailer centre

Please note Shipping is restricted to UK Mainland only

Additional information

Weight 25 kg

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