Short Description
Premium factory-direct aftermarket Rexroth A11VO and A11VLO Series Axial Piston Pump Spare Parts and Overhaul Rebuild Kits, precision-engineered as 100% precision drop-in replacements for high-pressure open-circuit systems. Covering full frame sizes from A11VO40 up to A11VO260 (Series 1 & Series 2), our massive inventory features advanced heavy-duty bimetal rotary groups designed to completely restore factory volumetric flow, eliminate internal high-pressure bypass, and withstand intense operational pressures up to 400 bar in heavy mining excavators, port maritime cranes, and industrial smelting machinery.
Key Highlights
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100% Interchangeable Blueprint Tolerances: All internal internal rotary groups are manufactured strictly to original Bosch Rexroth micro-metric blueprints. Fits flawlessly into existing OEM pump housings with zero dimensional mismatch or shaft binding.
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Upgraded Copper-Plated Heavy Cylinder Blocks: Our A11VO cylinder barrels utilize high-density, copper-plated friction interface technology, drastically extending boundary lubrication, reducing friction coefficient, and preventing cracking under intense thermal casing shocks.
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Case-Hardened Pistons with Reinforced Shoes: Piston assemblies are forged from premium structural alloy steel and undergo severe induction hardening. Friction shoes are micro-lapped to absolute flatness, mitigating the risk of shoe-off-plate structural failures under high-speed tilting operations.
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One-Stop Full Inventory Sourcing: Complete structural kits ready for immediate global shipping, including Cylinder Blocks (Barrels), Piston Shoes with Retainers, Valve Plates (CW/CCW), Ball Guides, Drive Shafts, Swash Plates, Saddle Bearings, Cradle Seals, and complete High-Temperature Viton Seal Kits.
HTML Table
| Compatible Pump Frame Sizes | Available Internal Spare Parts & Components | Core Series & Application Coverage |
|---|---|---|
| A11VO40 / A11VO60 / A11VO75 | Cylinder Block (Barrel), Piston Shoes, Retainer Plate (Set Plate), Valve Plate (Left or Right), Ball Guide, Central Pin, Drive Shaft, Swash Plate Assembly, Cradle Bearings, Intermittent Control Pistons, Shock-Resistant FKM (Viton) Seal Kits. | Series 1, Series 2, Series 10 Open Circuit Hydraulic Systems (Heavy Excavators, Marine Winches, Industrial Power Packs) |
| A11VO95 / A11VO130 / A11VO145 | ||
| A11VO190 / A11VO260 |
FAQ
Q1: What is the primary difference between standard A11VO spare parts and A11VLO spare parts? A: The primary difference lies in the pump configuration: the A11VLO series features an integrated internal charge pump (impeller/suction pump) on the rear to handle ultra-high rotational speeds in open circuits. While most internal rotary groups (cylinder blocks, pistons, valve plates) are identical between A11VO and A11VLO of the same displacement, the drive shafts and rear sealing covers vary. Please provide your full nameplate code (e.g., A11VLO190LRDU2/10R) so our desk can match the shaft profile perfectly.
Q2: Heavy mining excavators demand extreme fluid reliability. How do your A11VO parts resist cavitation and pressure shocks? A: Our A11VO replacement parts undergo strict material hardening. The valve plate and cylinder block faces are heat-treated to an ideal surface hardness of 60-62 HRC, combined with specialized anti-cavitation relief slots. This enables our parts to smoothly dissipate sudden hydraulic pressure shockwaves up to 400 bar without micro-cracking or scoring.
