AL-KO IRS Axle Specifications

Standard Axles

CAPACITY (KG)	OUTER TUBE SIZE (T) (MM)	BRAKE OPTIONS**	MOST COMMON STUB LENGTH / PROFILE (MM)	CHASSIS TO STUB CENTER (MM) UNLOADED * ”NOMINAL” – (H)	MAX WHEEL DIAMETER
HIGHWAY – Zinc plated or hot dipped galvanised tube, plated swing arm stub and inner tube.
100 – 400	62	Unbraked	205 / LM	85	13”
401 – 850	80	10” Electric	205 / LM	110	14”
851 – 1450	97	10” Electric	205 or 235 / Slimline	130	14”
851 – 1600	110	10” Electric	235 / Slimline / Parallel	145	16”
1601 – 2500	120	12” Electric	255 / 2T	135	16”
OFF ROAD (15”/16” Wheels only) – Zinc plated or hot dipped galvanised tube, plated swing arm stub and inner tube.
851 – 1600	110	10” Electric, 12” Electric, Hyd or Mech Disc	235 / Slimline / Parallel	145	16”
1601 – 2500	120	12” Electric, Hyd or Mech Disc	255 / 2T	135	16”
MARINE (u-bolt fitted double width brackets) – Hot dipped galvanised tube, plated swing arm, stub and inner tube.
100 – 400	62	Mechanical Disc or Unbraked	205 / LM	85	13”
401 – 850	80	Hydraulic or Mech Disc	205 / LM	110	14”
851 – 1450	97	Hydraulic or Mech Disc	205 or 235 / Slim- line	130	14”
851 – 1600	110	Hydraulic or Mech Disc	235 / Slimline Parallel / 1.5T	145	16”
1601 – 2500	120	Hydraulic or Mech Disc	255 / 2T	135	16”

** All axles are available unbraked or with the brake options as shown.
* “Unloaded” refers to the chassis being supported and suspension arms hanging free.
** Nominal suspension travel is 50mm at design load & a further 40-45mm at bump

Universal Chassis Bracket

To assist in fitting AL-KO IRS axles to individual chassis, a Universal bracket has been developed which is welded to the trailer chassis and the AL-KO IRS axle is bolted to the bracket through side mounting bolts.

Part Number	Description
200170	Universal Chassis Bracket Suit 80-120mm outer tube, Zinc plated – Suits standard and low line ride height/ incorporates shock absorber mounting holes.