Description: Internal rotor-assembly part for rotary-vane vacuum pumps, key moving component. Mounted on the pump shaft and rotates synchronously together with the shaft.
Provides mounting slots for rotary vanes. Rotation drives vanes against the pump-housing inner wall; compartmentalizes pump-chamber volume to complete suction-compression-exhaust cycles. Transmits driving torque, stabilizes vane operating trajectory, enables volume variation for vacuum generation.
Gray cast iron or ductile iron for general-purpose; stainless steel for corrosion-resistant requirements. Periphery machined with vane-retaining slots; precision-machined end faces; key-connected torque transfer interface with the pump shaft.
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