Manufactured Lean in the USA
Nominal DiameterTire SizeBearing TypeModel NumberMSRPWeightLoad CapacityOverall HeightMounting Plate
104 x 6TaperedS-7710-SPRT$66847200012 144 1/2 x 6 1/2
122 x 8TaperedS-7712-SPRT$1,03588240015 126 1/8 x 7 1/2
143 x 8TaperedS-7714-SPRT$1,528114300017 388 1/2 x 8 1/2
164 x 8TaperedS-7716-SPRT$1,394170480018 388 1/2 x 8 1/2
185 x 8TaperedS-7718-SPRT$1,873245660020 588 1/2 x 8 1/2
216 x 9TaperedS-7721-SPRT$1,944280840024 128 1/2 x 8 1/2

Hamilton HPI™ Technology

Hamilton Precision Integrated

The Dual Wheel Ground Support 7700 Series features Hamilton’s Precision Integrated HPI™ Swivel Technology. The new technology outperforms conventional CNC-machined ball raceways, kingpinless, and unit load bearing swivel constructions.