Anti-Sway / Fixed & Swivel Ring Couplings

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Sway Control Couplings

AL -KO has a specific coupling designed to reduce trailer sway. This 50mm ball type fixed coupling is designed to be used on trailer up to 2500 kg
AT M (total loaded mass) and with a maximum tow ball weight of 250 kg.
This unique product incorporates a clamping system that grips the sides of a specially designed 50 mm tow ball and resists movement of the trailer. This action slows down any tendency for the trailer to sway or veer from a straight condition.
This is particularly a benefit when large trailers such as caravans are buffeted by side winds or by a passing truck and trailer combination.


NOTE: This type of coupling must only be used with a 50mm ball which has an anti-rotation plate for attachment to the vehicle fitted.

PART NO

DESCRIPTION

MOUNTING HOLE

(LXW) AND DIAMETER

SURFACE FINISH

BALL TO FIRST CENTRE HOLE

(NOMINAL)

618304

AKS 3004 Stabilizer Kit –

(special anti-rotation AL-KO towball, towbar adapter included) max trailer weight 2500kg

184mm x 54mm x

13.5mm

Zinc

plated

203mm

Image_287

PART NO

DESCRIPTION

618100

AKS Anti Rotation 50mm towball plate for lug type tow bar 75mm wide

618200

AKS Anti Rotation 50mm towball plate for weight distributing hitch

618205

AKS Anti Rotation 50mm towball plate for weight distributing hitch 76003 series

618904

AKS Anti Rotation 50mm towball Black

618901

AKS Anti Rotation 50mm high rise towball Black

618925

AKS Side Friction Pads for AKS 3004 head – Set of 2

618940

AKS Front & Back Friction Pads for AKS 3004 head – Set of 2

991220759

AKS 1300 Pad Kit

Ring Type Couplings

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When used in a commercial or defence department application, often a 75 mm ring type towing eye is requested.
This style of coupling is similar in function to ball type couplings (fixed and over ride ) but instead of the connection to the tow vehicle being a standard 50 mm ball, the connection is a 75 mm inside diameter ring and this attaches to a “pintle hook” fitted to the tow vehicle. These types of couplings are primarily used in applications where the tow vehicle is a heavy commercial truck. As the Australian Standard AS 4177 states the 50mm towball to have a maximum capacity of 3500 kg AT M (total loaded mass), ring couplings are used when higher loads are involved.

Fixed Ring Type

PART NO

DESCRIPTION

MOUNTING HOLE

(LXW) AND DIAMETER

SURFACE FINISH

RING CENTRE TO FIRST MOUNTING HOLE (NOMINAL)

614304

3500kg 75mm Fixed Ring

103mm x 56mm x

16.8mm

Zinc plated

86mm

614309

6000kg 75mm Fixed Ring

182mm x 52mm x

16.8mm

Zinc plated

116mm

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