If a standard excavator has lost swing torque and swing speed, a worn R130-7 R140-7 Swing Gearbox is the most common cause. The reduction gear set is the highest load point in the swing circuit, so any slack in the bearings shows up immediately as noise, heat and lost speed. RITO keeps this R130-7 R140-7 Swing Gearbox in stock as a sealed, pre-assembled replacement.
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