Machine duty
Explain repeatability, low lost motion, shaft alignment, thermal behavior, bearing preload, lubrication and inspection scope. These inputs help the quotation reflect the actual machine rather than an industry label.
Precision machinery tends to make small assembly errors more visible. The RFQ should connect tooth geometry with datums, bearing support, backlash expectations and the inspection results needed to release the part.

A precise gear pair still depends on the machine structure that positions it. If the housing or bearing stack moves the gear away from the intended mounting distance, the tooth contact can shift even when both gears were made to the drawing.
When a project has temperature-sensitive behavior, include the operating range and the materials around the gear pair. Do not turn that context into a product-level performance claim unless the ordered configuration has been evaluated for it.

| Review area | What to provide | Why it matters |
|---|---|---|
| Motion / duty | Repeatability, low lost motion, shaft alignment, thermal behavior, bearing preload, lubrication and inspection scope | Separates steady power transmission from reversing, shock or position-sensitive duty. |
| Gear pair | Gear + pinion identity, ratio/tooth counts and hand | Prevents one component from being reviewed without its mating geometry. |
| Mounting | Shaft arrangement, bearing support, housing datums and target backlash | Connects the manufactured part to the position it will hold in the assembly. |
| Environment | Lubrication, temperature and contamination context | Supports practical material, finish and service review without inventing machine-level claims. |
| Inspection | Drawing tolerances, tooth finish and required records | Defines what the buyer will use to accept the ordered configuration. |
Tighter numbers are not automatically better if the machine cannot hold them. Define the values that the assembly can control, and state which surface or axis is the reference for each acceptance dimension.
Ground or custom matched pairs are typical starting points for higher-control applications. A pinion shaft can reduce separate joint interfaces when the design intentionally integrates the shaft and pinion.
If a precision machine assembly still has open geometry or duty inputs, mark those items for review. An explicit unknown is safer than filling the drawing with an assumed standard value.


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A custom spiral bevel gear set is built around project-specific geometry rather than a public stock table. The useful definition includes both members of the pair, the axis…
Yapılandırmayı görüntüle →When the precision machine assembly drawing controls material or heat treatment, include the exact requirement. If those choices remain open, describe the duty and leave material/process selection for review.
Photos of the precision machine assembly help establish orientation and condition, but they do not define tooth geometry or mounting datums. Add the mating member, drawing data and measurements taken from controlled assembly references.
For the precision machine assembly, send the assembly information that controls shaft relationship, mounting datums and interfaces. Unrelated machine details can be omitted when they have no effect on gear selection or inspection.
For the precision machine assembly, separate prototype/sample quantity from expected repeat demand. This keeps tooling, inspection and production planning tied to the real purchasing stage.
Eşleşme ilişkisi ve montaj referans noktaları ne kadar net tanımlanırsa, konfigürasyonun incelenmesi o kadar hızlı olur.
Minimum sipariş miktarı (MOQ), ürün türüne, üretim yöntemine ve toplam sipariş değerine göre esnektir. Uygun yeni projeler için numune fiyatıyla 1-5 adet numune talep edilebilir. Toplam sipariş tutarı yaklaşık 1.500 ABD dolarına ulaştığında karışık modeller birleştirilebilir. 1-2 adetlik siparişler değerlendirilebilir, ancak birim maliyeti genellikle daha yüksektir.
Tipik planlama süreleri, standart parçalar için 10-25 iş günü, özel üretim bileşenler için 20-45 iş günü ve proje tipi ekipman veya montajlar için 45-120 iş günüdür. EXW, FOB, CIF ve DAP yaygın olarak desteklenmektedir; sevkiyat için FCA, CFR, CPT, CIP ve DDP görüşülebilir.