To meet performance demands of Tier 4 engines and powertrain systems, small-frame size 6/7/8 GOLD CUP® hydrostatic piston pumps feature bearing cage designs that maximize productivity and pump life. Size and thickness of Severe Duty barrel bearing lend to robust cage construction. Available for all Gold Cup frame sizes, Extreme Duty barrel bearing runs with low-viscosity and exotic fluids and accommodates high temperatures. Single-piece bronze cage optimizes strength and minimizes friction.