The Shimadzu Axial Rotor Disk 1003 is an OEM option part designed as a direct replacement rotor disk for TMP-803 and TMP-1503 series molecular (turbomolecular) pumps. It is supplied as an original repair component to restore rotor balance and dynamic performance to factory specification when servicing or overhauling TMP-803/1503 series pumps.
Key applications include rotor refurbishment during bearing replacement, dynamic balancing after impact or contamination, and routine preventive maintenance where rotor integrity affects vibration, ultimate pressure and pump life.
For ordering genuine repair components and non-standard maintenance items, please refer to the official spare parts listing: Shimadzu molecular pump non-standard maintenance parts.
Main features
- Factory-original replacement part manufactured to fit TMP-803 and TMP-1503 series molecular pumps without modification.
- Balanced and finished to OEM tolerances to minimize vibration and axial/radial runout.
- Precision machining and surface treatment appropriate for high-speed vacuum rotor service.
- Supplied as a ready-to-install rotor disk to help shorten pump downtime during repair.
Compatibility
Direct fit for: TMP-803 series and TMP-1503 series turbomolecular (molecular) pumps. Always confirm the pump model and serial number before ordering to ensure the correct revision. If your repair includes additional components, view the comprehensive parts list here: Shimadzu Option Parts and Repairs.
Materials & manufacturing notes
- Manufactured to OEM material and dimensional specifications (factory material selection preserves balance, thermal stability and fatigue resistance).
- Surface finishes are applied to meet the dynamic requirements of high-speed rotation and minimize gas-load effects.
- Each rotor disk is inspected for runout, concentricity and balancing prior to shipping.
Installation & replacement guideline
- Work in a clean, particle-free environment and follow ESD precautions where applicable.
- Disassemble the pump according to the manufacturer’s service manual; remove the old rotor disk carefully to avoid damage to the shaft and bearings.
- Inspect shaft journals, bearings and seals. Replace bearings if there are signs of wear, discoloration or scoring—rotor replacement alone will not correct bearing-related vibration.
- Clean mounting surfaces with an appropriate solvent and lint-free wipes. Ensure no particles or burrs remain on the shaft or bore.
- Install the new Axial Rotor Disk 1003, align to the shaft, and torque any fasteners to the manufacturer-specified values. If shimming or balancing weights were used previously, recalibrate balance as required.
- After reassembly, perform static and dynamic balance checks, leak tests and a controlled speed-up run while monitoring vibration, temperature and ultimate vacuum.
Maintenance & inspection
- Check for signs that indicate rotor disk replacement: increased vibration, abnormal noise at speed, reduced ultimate pressure, or visible damage/corrosion to the disk.
- During routine maintenance, visually inspect the disk for nicks, deformation or contamination and perform runout measurements.
- Maintain records of rotor replacements and balancing runs—this helps identify recurring issues related to misalignment, contamination or bearing life.
Troubleshooting tips
- Persistent vibration after disk replacement usually indicates bearing wear, shaft damage or improper balancing — re-evaluate those items.
- Elevated operating temperature may point to improper fit or axial rubbing; verify clearances and assembly torque.
- Contamination on the rotor surface (oil, particulates) requires cleaning with compatible solvents and a full inspection to ensure no surface damage.
Ordering, packaging & delivery
The Axial Rotor Disk 1003 is available as an OEM spare; typical supply includes protective packaging to prevent mechanical damage and contamination during transit. Minimum order quantity and lead time depend on stock status — for verified OEM parts and availability, please consult the parts catalog or contact the supplier channel: Shimadzu non-standard maintenance parts.
Storage & handling
- Store in a clean, dry environment free from corrosive chemicals and humidity.
- Keep in original protective packaging until installation to avoid particle deposition or accidental nicks.
- Handle by non-marring gloves or soft supports; avoid dropping or impacts which can alter balance.
Safety & warranty
Follow all safety procedures for high-speed rotating machinery when servicing molecular pumps. Use proper guards during test runs and follow lock-out/tag-out procedures when disassembling pumps. Warranty terms depend on the supplier and whether installation was performed by an authorized service provider—always confirm warranty coverage at time of purchase.
Quick specification summary
- Part name: Axial Rotor Disk 1003 (OEM repair part)
- Application: Replacement rotor disk for Shimadzu TMP-803 and TMP-1503 series molecular pumps
- Supplied condition: Factory-balanced, ready for installation
- Documentation: Supplied with OEM inspection notes and handling instructions when available
If you need assistance confirming fitment for a specific pump serial number, balancing requirements, or recommended repair kits that include bearings and seals, please refer to the official parts resource: Shimadzu Option Parts and Maintenance.
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