Machine duty
Explain axis reversal, positioning sensitivity, machine stiffness, duty cycle, lubrication access and the backlash target. These inputs help the quotation reflect the actual machine rather than an industry label.
CNC assemblies often use bearings, housings and shoulders as the practical reference system for the pair. When the mechanism reverses direction, lost motion and contact shift become easier to notice, so the RFQ should connect the gear drawing to the assembly datums that hold it.
For new machine builds, state the expected reversal pattern and whether the axis is primarily transmitting power or contributing to positioning. That context helps separate a general power-transmission requirement from one where backlash and repeatability need explicit acceptance criteria.

| Review area | What to provide | Why it matters |
|---|---|---|
| Motion / duty | Axis reversal, positioning sensitivity, machine stiffness, duty cycle, lubrication access and the backlash target | 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. |
A replacement selected only by outside diameter can fit the space and still mesh incorrectly. Record the mating gear, shaft orientation and any existing backlash or contact requirement before removing the original parts.
Ground or custom spiral bevel gear sets are common starting points when the machine is sensitive to repeatable meshing; an integrated pinion shaft may suit compact spindle or auxiliary mechanisms when the drawing defines the shaft as one component.
If a machine-tool spindle or positioning 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.

When the machine-tool spindle or positioning 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 machine-tool spindle or positioning 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 machine-tool spindle or positioning 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 machine-tool spindle or positioning assembly, separate prototype/sample quantity from expected repeat demand. This keeps tooling, inspection and production planning tied to the real purchasing stage.
配合关系和装配数据定义得越清楚,配置审查的速度就越快。
最小起订量 (MOQ) 根据产品类型、生产工艺和订单总额而定。合适的全新项目可以按样品价格索取 1-5 件样品。当订单总额达到约 1500 美元时,可以合并不同型号的产品。1-2 件的订单也可以考虑,但单价通常会更高。
标准件的典型计划周期为 10-25 个工作日,定制件为 20-45 个工作日,项目型设备或组件为 45-120 个工作日。通常支持 EXW、FOB、CIF 和 DAP 等贸易条款;FCA、CFR、CPT、CIP 和 DDP 等运输方式可另行商议。