7/11/2023 0 Comments Leaf springWith 150 years in the industry, we have become leaders in heavy-duty transportation. Parabolic leaves are individually painted on all surfaces. We are a one stop shop for cold and hot wound coil and leaf springs. Links position the axle fore and aft and keep the axle from rotating. In a coil-sprung suspension, the coil’s job is to hold the vehicle up and comply with the terrain. The basic technology has been around since the days of covered wagons. The multi leaf surfaces are protected against corrosion by painting of the outer surfaces and by lubrication between each leaf. Twisted helical (torsion) springs are used in engine starters and hinges. Leaf springs are the most simplistic and inexpensive suspension system for your 4×4. Positive stresses are then introduced into the spring by a pre-stressing process. For multi-leaf springs however, it is normally only the two safety-critical leaves that require shot peening. The bushes are pressed into the eyes and the stack of leaves assembled. The leaves are finally tempered for high material toughness and strength.Īfter cooling, the shot peening process is necessary for all parabolic leaves. Parabolic leaves also have an arc radius but are however normally straight in the thicker central section. The leaves are heated and individually bent to the correct arc radius and, whilst still clamped between the bending tool, each leaf is quenched in oil to receive high strength and the correct shape. Both standard and heavy duty springs are also available for many models. Remember this is over or under a stock height, not where it is sitting currently. In addition to stock ride height, 1' or 2' lift or lowering height is also available for many models. The ends of the main leaf are heated and the eyes are then hot rolled. Our leaf springs are made for specific makes, models and years and are not one-size fits all. Leaves for multi-leaf springs are prepared by cutting and stamping whilst parabolic leaves are hot rolled in a purpose-made rolling machine. Assembling - presetting - surface treatment Bending - heat treatment - shot peening Manufacturing of leaf springs can be divided in to three broad areas:
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