Some Technical Details....

SuperFlex bushes have an extremely high tension- and compression-bearing capacity. This enables them to be lighter, thinner, and more durable than rubber bushes while still retaining their superior strength. Unlike rubber bushes, SuperFlex polyurethane bushes are designed to function rather like a bearing. This allows the suspension to move more freely around its pivotal point and eliminates the restriction imposed by the torsion pivoting inherent in most rubber bushes. The microscopic release of the lubricating polymers impregnated during manufacture, aided by Superflex's own assembly lubricant, gives SuperFlex bushes their exceptional ability to absorb friction throughout their long life. This, together with their high load-bearing capability and outstanding abrasion resistance, makes them ideal for almost any vehicle - especially where original bushes are marginal.

Another achievement is the remarkable breakthrough in the bonding of polyurethane to steel, to the point where the bond normally outlasts the life of the bush. SuperFlex polyurethane bushes will not roll and peel away like rubber. They are also inherently resistant to deterioration and swelling, even when in regular contact with oil, greases, waxes, and most other chemicals. SuperFlex bushes also have the exceptional ability to perform in extreme temperatures, as high as 90°C and as low as minus 60°C.

SuperFlex polyurethane suspension bushes owe their resiliency and their distinctive glossy finish to the 'poured and oven-cured' moulding technique used in their manufacture (as distinct from injection moulding, which produces a hard, lacklustre product of limited resilience). SuperFlex alone manufacture from a range of four firmness grades - 70, 80, 90, and 95 Shore-A (some 10-45 points higher than the average rubber bush). These grades are carefully chosen for each individual application.

SuperFlex bushes are designed with substantial side location shoulders that eliminate axial displacement problems and in some applications where abnormal stresses are imposed on the bush, special innovative solutions are used to accommodate the unique characteristics of polyurethane. Bullet Grooves, Knurling, Chamfering and Fluting are some of the unique design features Superflex employ to meet special needs.