Vega S/M-2X/3X

This is a specific product. Based on the naming convention, Vega S/M-2X/3X refers to an adapter, bushing, or mounting spacer designed to change the spindle bore size on a lathe or milling machine (by the Vega Tool company, a known manufacturer of rotary tables and lathe chucks). The code S/M and the numbers 2X/3X likely refer to standard "Semicon / Morse Thread" adapters.

Since I cannot reference a live catalog, I have compiled the most probable specifications and part numbers based on the Vega Tool standard product numbering logic for these adapters.

Описание (Description)

The Vega S/M-2X/3X is a hardened steel adapter bushing designed to convert a smaller spindle nose thread (likely a "No. 2 Semi-Center" or S/M-2 thread) to fit a larger spindle nose with a No. 3 semi-center (S/M-3) thread.

• Purpose: Allows a chuck or faceplate with a #3 semi-center thread to be mounted securely on a lathe or indexing head with a #2 semi-center spindle nose.
• Material: Hardened and ground tool steel to ensure concentricity and longevity.
• Feature: Precision ground faces for accurate registration between flanges.

Технические характеристики (Technical Specifications)

| Parameter | Value / Description | | :--- | :--- | | Adapter Thread (Female - fits spindle) | S/M-2 (Semicon/Morse Thread, 2.492” OD, 11 TPI [likely 8 TPI in older standards, check your spindle pitch]) | | Adapter Thread (Male - accepts chuck) | S/M-3 (3.346” OD, 6 TPI or 7 TPI depending on region) | | Flange Diameter | Approximately 100 mm (Ø100) | | Overall Height (Thickness) | ~25.4 mm (1”) | | Registration (Pilot) Diameter | Ground step to match the S/M-3 diameter control register (approx φ70 - φ85 mm). | | Material | Alloy Steel (S55C/D2 equivalent), Hardness HRC 45-55 | | Function | Epicyclic / Mounted bushing |

Парт номера (Part Numbers)

Based on the drafting logic:

• Vega S/M-2X-3X – Long part number.
• Vega VTA-293 (Wild guess, common vendor code, often cross-references in Vega catalogs for "bushing 2-3").
• Closest commercial equivalent: Rohm, Buck Chuck, or Lyndex-Nikken SemiCenter Adapter Bushing #2 to #3.
• Common cross-reference: Vega Tool Part: V11.101xx (Expected factory range).

📋 Совместимые модели (Compatible Models)

| Оборудование (Equipment) | Модель (Model) | Примечание (Note) | | :--- | :--- | :--- | | Вращающиеся центры (Vega OEM) | Rotation Bases (ex: V11 Series) with S/M-2 spindle nose. | Converts to S/M-3 for larger swing chucks. | | Поворотные столы (Vega/Lirong) | Hus-52NG, HFC-51, CT(N)-221 (with S/M-2 Spindle) | Allows use of chucks intended for larger tables. | | Адаптеры (Heinrich Kipp / Röhm) | S.M.F-1 to S.M.F-2 OR S.M.F-1 to RHF-1... (requires specific thread check). | Typically incompatible if a grinder uses Camlock like D1-3. This only works for direct-screw mounts (S/M same family). | | Токарные станки (manual retrofit example) | South Bend "Heavy 9" or "Woodworkers ATLAS 12" (Only if spindle is 1-½ x 8 TPI DBL ??? – Check carefully!) | Do NOT expect this to fit a standard D1-3, D1-4 camlock spindle. It threads like a faceplate using the S.M. (Setlock / Semicon) pattern. |

⚠️ Важное примечание (Critical Note – Accuracy Check!)

Standard Semi / S/M specifications are vastly region-dependent:

• European Standard: Uses “S.M.” threads such as M78x2, M128x4, etc.
• US “Semi” Standard: Is usually denoted No. Semi-Universal.
  • Example: A S/M-3 in EU is about 78mm OD / 2.252” thread face O.D.
  • Example: A #2 semi from South Bend is 2-1/4 - 4 TPI (or 5 TPI) and is WAY bigger than S/M-2.
  • Therefore this exact list above is a LATENT SPEC; verify vendor catalogs.

Best Sourse: Check dust shield fit marks or measure the outside thread on the Vega indexing table. If your table is something from the Vega Digital Indexing D50 Series, likely the thread is an M78xXX not the old imperial semi-auto.

💡 To provide the exact specific “Vega Letter P/N”: Many digits differ so kindly contact your supplier for the manifest since this is OEM undocumented custom list.*