Shimadzu Option Parts SHAFT ASSY(S) V2304LM for TMP-V2304 series Molecular pump

Product overview
The SHAFT ASSY(S) V2304LM is an original Shimadzu option part designed for repair and refurbishment of TMP‑V1804 through TMP‑V2304 series molecular pumps, with direct application to the TMP‑V2304 series. This precision rotating shaft assembly restores dynamic balance and rotational integrity to the pump’s rotor assembly, helping re‑establish specified vacuum performance and lifetime reliability.

What this part does
The shaft assembly is the central rotating element that transmits torque from the motor through bearings and into the rotor stages. Over time shafts can suffer from wear, scoring, corrosion, or slight deformation from imbalance events. Replacing the shaft with an OEM specification SHAFT ASSY(S) V2304LM ensures correct concentricity, surface finish and tolerance stack‑up required by molecular pump designs.

Key features

• OEM manufactured to Shimadzu tolerances for TMP‑V1804 ~ V2304 series
• Precision ground journal surfaces for proper bearing seating and minimum run‑out
• Surface treatments to resist galling and improve fatigue life
• Balanced to rotational specification to minimize vibration and wear
• Direct drop‑in replacement for TMP‑V2304 series assemblies

Compatibility
This shaft assembly is specified for use in the TMP‑V2304 series and is also compatible for repair of pumps within the TMP‑V1804 to TMP‑V2304 range when the shaft is the identified failure component. Before ordering, verify your pump model and serial number to confirm compatibility with the TMP‑V2304 series specification.

Technical considerations

• Material: high‑strength stainless alloy selected for wear resistance and corrosion protection
• Surface finish: precision ground/machined journals and keyways to ensure correct bearing fit
• Balancing: static and dynamic balancing performed to reduce vibration-induced failure
• Tolerances: machined to OEM concentricity and straightness standards for smooth rotor performance

Installation and inspection notes

• Inspect bearings, seals and rotor components during shaft replacement—shaft wear often indicates companion part fatigue.
• Use correct clearance and torque values when reassembling bearings and retainers; improper fit can reduce service life.
• After installation, perform a slow spin and rotor run‑in at low vacuum to confirm concentricity and absence of rubbing.
• If imbalance or abnormal vibration persists, recheck bearing condition, rotor blades and mounting interfaces.

Maintenance and troubleshooting
Regular inspection of the shaft surface and bearing journals during scheduled maintenance will extend pump life. Common symptoms that indicate shaft replacement is necessary include elevated vibration, unusual noise, bearing overheating, or metal particles found in the lubricant or pump chamber.

Packaging, warranty and ordering
The SHAFT ASSY(S) V2304LM is shipped in protective packaging to prevent contamination and mechanical damage. Genuine replacement parts are typically backed by supplier warranty—confirm warranty terms at time of purchase. For ordering and further non‑standard maintenance parts for Shimadzu molecular pumps, see the supplier page: Shimadzu molecular pump non‑standard maintenance parts.

Related resources
For additional components and assemblies compatible with the TMP‑V2304 series, consult the parts page and technical support resources. Find repair parts and options here: Shimadzu molecular pump non‑standard maintenance parts. If you need matched bearing kits, seals or rotor replacements to accompany the shaft swap, available options are listed on the same parts portal: Shimadzu molecular pump non‑standard maintenance parts.

Contact and support
For fitment confirmation, installation guidance or lead time, contact your parts supplier with the pump model and serial number. You can review additional replacement options and request support via the parts information page: Shimadzu molecular pump non‑standard maintenance parts.

Note: This description covers the SHAFT ASSY(S) V2304LM used as an original repair part for TMP‑V1804 through TMP‑V2304 molecular pumps and emphasizes careful verification of model compatibility before purchase or installation.