Description
Technical Specifications
- Product Model: R902477806 (AWAX004D09)
- Brand: Bosch Rexroth
- Warranty: One Year
- Input Voltage: Not applicable, mechanical hydraulic pump accessory
- Operating Temperature: ‑20 °C ~ +90 °C (hydraulic oil temperature)
- Storage Temperature: ‑40 °C ~ +120 °C
- Response Time: Not applicable, mechanical sealing component
- Protection Class: IP65 when properly assembled
- Accuracy Class: Not applicable
- Output Frequency: Not applicable
- Rated Current Range: Not applicable
- Communication Interface: None, pure mechanical part
- Supported Protocols: None
- Overload Capacity: Matches A4VG series pump maximum working pressure 350 bar; anti‑leakage sealing design
- Dimensions: OEM matched dimension for A4VG pump series; weight approx.1.2 kg
Product Overview
The Rexroth R902477806 (AWAX004D09) is an original‑equipment through‑drive end‑cover assembly for Rexroth A4VG series closed‑circuit axial piston variable pumps. This mechanical cover seals the through‑drive port when no tandem auxiliary pump is fitted, provides reliable shaft‑end sealing, prevents hydraulic‑oil leakage and blocks dust‑contamination entering pump internal chambers. It addresses typical hydraulic‑system pain points including through‑drive port oil leakage, shaft‑end contamination‑induced premature wear, and spare‑part mismatch risks during pump‑overhaul work. Hydraulic‑system engineers, field‑service technicians and plant‑maintenance teams benefit from this component. Complete with sealing gaskets and O‑rings for direct field replacement. It is used for new‑pump assembly and drop‑in spare‑part replacement for existing A4VG pump installations.
Application Scenarios
- Closed‑Circuit Hydraulic Pump Mechanical Sealing: Seals the through‑drive interface of A4VG axial‑piston pumps in closed‑loop hydrostatic transmission systems, used when secondary tandem pump is not required.
- Mobile‑Machinery Hydraulic‑System Maintenance: Applied for engineering‑machinery, road‑construction‑equipment and mining‑machinery A4VG pump overhaul repair. Prevents external contamination ingress and oil leakage at the through‑drive end.
- Industrial‑Closed‑Loop Hydraulic‑Power Unit Retrofit: Used for industrial closed‑circuit hydraulic power‑pack A4VG‑pump modification; blocks unused through‑drive port to maintain system integrity.
- A4VG Pump Spare‑Part Replacement: OEM direct‑fit spare component for A4VG‑series pumps. Perfect mechanical‑interface compatibility eliminates modification work and shortens equipment downtime during pump‑repair.
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