Shimadzu Option Parts Shaft Assembly 3003M for TMP 2003 3604 series Molecular pump

What this part is

• Part name: SHAFT ASSY 3003M (rotating main shaft assembly).
• Function: replaces the rotating shaft inside the molecular pump rotor assembly; transfers torque from the motor/rotor drive to the rotor and supports dynamic alignment under high-speed vacuum operation.
• Intended use: repair/overhaul of Shimadzu TMP series molecular pumps where the original shaft is worn, damaged, or out of tolerance.

Compatibility

• Applicable models (as provided): TMP-2003 and TMP-3604 series.
• Also commonly used in service for TMP-3003 ~ TMP-3603 series as an OEM repair component—verify the exact shaft revision and serial number of your pump before ordering.
• Always confirm compatibility by cross-referencing your pump serial number and the replacement part drawing.

Key design and quality features

• Precision-machined from high-strength, vacuum-compatible alloys to maintain concentricity and torsional stiffness at operating speeds.
• Surface finishes optimized for low friction and long life in vacuum environments.
• Balanced to OEM dynamic balance specifications to minimize vibration and bearing wear.
• Manufactured to the tolerances required for direct plug-and-play replacement in Shimadzu TMP series pumps.
• Supplied as an assembly to reduce installation time and risk of misalignment during rebuilds.

Installation overview (qualified technician only)

1. Ensure the pump is fully isolated, purged, and at atmospheric pressure. Follow all lockout/tagout and safety procedures.
2. Disassemble the pump according to the manufacturer service manual. Keep fasteners and spacers in order for reassembly.
3. Inspect bearings, rotor, and housing surfaces. Replace any components outside tolerance—installing a new shaft on worn bearings will shorten service life.
4. Install the new SHAFT ASSY 3003M into the rotor assembly, ensuring proper fit, axial clearance, and bearing seating as per the service manual.
5. Perform dynamic balancing check if specified by the pump overhaul procedure.
6. Reassemble and torque fasteners to the OEM specifications, perform leak checks and vibration analysis during run-in.

For repair kits, tooling, and specialized procedures consult the pump’s overhaul manual or a certified service provider. Related maintenance parts and guidance are available at Shimadzu molecular pump non-standard maintenance parts.

Maintenance and inspection recommendations

• Inspect shaft journals and keyways during every major service interval for wear, scoring, or corrosion.
• Monitor vibration and bearing temperature after reassembly; abnormal readings indicate misalignment or imbalance.
• Use only approved lubricants and bearings specified for vacuum pumps; contamination can accelerate wear on shafts and bearings.
• Document measurements and run-in behavior to establish baseline condition for future service.

Ordering and support

• Part designation: SHAFT ASSY 3003M — order as the specified OEM option part for Shimadzu TMP series.
• Before ordering, confirm model, serial number, and shaft revision with your supplier to ensure correct fitment.
• For sourcing assistance, repair guidance, or to view other compatible non-standard maintenance parts visit Shimadzu molecular pump non-standard maintenance parts.

Lead times, packaging, and warranty terms vary by supplier — request formal quotation that includes part traceability and any test documentation (dynamic balance report, material certification) if required for critical installations.

Safety and compliance

• Only trained personnel should perform pump disassembly and shaft replacement.
• Follow all local regulations for handling vacuum pump oils and contaminated parts.
• Confirm material and compliance requirements (e.g., RoHS, REACH) with the supplier if your application requires formal certification.