Description
A heavy-duty spiral bevel gear pair should be reviewed from the complete operating duty. Peak load, continuous load, shock events, reversals, bearing support and lubrication can all matter to material and process decisions. The exact geometry remains drawing-specific.
Best starting point: A project where load spectrum, shock, starts/stops or support stiffness make the duty more demanding than a simple nominal-torque description.
What this product family is designed to solve
Calling a gear “heavy-duty” does not create a technical specification. The RFQ needs the actual duty and the assembly that supports the pair. That information is more useful than an unsupported performance label.
Use this page when load and service duty are the dominant questions. If the main requirement is a ground tooth finish, start with the ground set; if the project is replacing an old heavy pair, use the replacement page so identification is addressed first.

Specification and RFQ table
For heavy-duty spiral bevel gear pair, exact numerical values are confirmed for the ordered configuration. The table below identifies the drawing and enquiry fields that need explicit control.
| Selection item | Configuration | RFQ note |
|---|---|---|
| Pair identity | Matched spiral bevel gear pair or project-specific single component | Confirm the mating member and driving relationship. |
| Shaft angle | Project-specific | Show the axis relationship or assembly drawing. |
| Ratio / tooth counts | To drawing or RFQ | Provide both tooth counts when known. |
| Module / diametral pitch | To drawing or RFQ | Do not estimate from outside diameter alone. |
| Pressure angle | Confirm for ordered configuration | Use the drawing or reliable legacy data for replacement work. |
| Spiral angle & hand | Confirm for ordered configuration | Identify right/left hand with a defined viewing convention. |
| Mounting distance / backlash | Project-specific | Provide housing datums and target range when controlled. |
| Bore / spline / shaft interface | To drawing or sample | Include keyway, spline standard, journals and datum requirements. |
| Material / heat treatment | To drawing or project review | State mandatory grade, hardness or case requirements if controlled. |
| Tooth finish / quality | To drawing or project review | State cut/ground requirement and the acceptance standard or inspection criteria. |
Contact and support conditions matter under load
Material, heat treatment and tooth finishing should be selected against the design requirement and load context. The housing and bearing system also need enough stiffness to hold the intended position. Inspection is then agreed around the dimensions and tooth-related criteria that matter to the machine.
The technical visual for heavy-duty spiral bevel gear pair is a discussion aid for component relationships. The controlled production drawing and approved quotation remain the dimensional definition for the order.

Interfaces and assembly checks
Typical application fit
Lifting mechanisms, heavy industrial gearboxes, power-transmission machinery and other assemblies with shock, high load or demanding duty cycles.
Application duty should be sent with the drawing whenever it can change the material route, tooth finishing, support assumptions or inspection requirement.
Manufacturing and inspection sequence
Review
Confirm drawing revision, pair identity, open questions and acceptance-critical features.
Plan
Define blank, datum machining, gear cutting, heat treatment and finish sequence.
Finish
Complete tooth and interface finishing according to the ordered route.
Inspect
Check the dimensions and gear-related criteria agreed for the configuration.
What to include in the enquiry
| RFQ group | Recommended detail |
|---|---|
| Technical definition | Current drawing, pair reference, ratio/tooth counts, hand and axis relationship |
| Assembly | Bore/shaft/spline, bearings, housing datums, mounting distance and backlash if controlled |
| 의무 | Speed, torque/load spectrum, reversals, shock, environment and lubrication |
| 품질 | Material, heat treatment, tooth finish, tolerances and inspection records |
| 광고 | Prototype and repeat quantity, destination, timing target and preferred trade term |
Frequently asked questions
Can I order only one member of the pair?
For heavy-duty spiral bevel gear pair, supplying one member can be reviewed when the mate is fully defined. If the existing mate is unknown, send its drawing, measurements or physical gear before releasing a single component.
Can a worn sample be copied directly?
A worn heavy-duty spiral bevel gear pair sample can support identification, but wear should not be treated as original geometry. Legacy drawings, an unused mating member and assembly measurements provide a stronger reconstruction basis.
Do I need to choose material and heat treatment before the RFQ?
When the heavy-duty spiral bevel gear pair design controls material or heat treatment, state the exact requirement. If those items are open, describe duty and mark them for selection review rather than borrowing a grade from another gear.
How are small sample quantities handled?
Small samples of heavy-duty spiral bevel gear pair can be reviewed for suitable new projects. Separate prototype quantity from expected repeat demand so setup, inspection and later production are planned against the correct volume.
견적 요청서(RFQ)에 대한 상업적 계획 수립
견적 요청 시 최소 주문 수량(MOQ)은 제품 형태, 가공 방식 및 총 주문 금액에 따라 유동적입니다. 적합한 신규 프로젝트의 경우 샘플 가격으로 1~5개의 샘플 제품에 대한 검토가 가능합니다. 총 주문 금액이 약 1,500달러에 도달하면 여러 모델을 조합하여 주문할 수 있습니다. 1~2개 소량 주문도 가능하지만, 소량 주문에 대한 설정 및 검사 비용이 분산되므로 단가가 더 높을 수 있습니다.
견적 요청 시 납기 계획은 일반적으로 표준 부품의 경우 10~25영업일, 맞춤형 부품의 경우 20~45영업일, 프로젝트형 장비 또는 조립품의 경우 45~120영업일이 소요됩니다. EXW, FOB, CIF, DAP 조건이 일반적으로 적용되며, FCA, CFR, CPT, CIP, DDP 조건은 특정 선적 및 목적지에 따라 협의 가능합니다.
장비 쌍, 도면 및 부하 정보를 하나의 견적 요청서에 포함하여 보내주십시오.
결합 관계 및 조립 기준점이 명확하게 정의될수록 구성 검토 속도가 빨라집니다.
주문 및 배송 안내
최소 주문 수량(MOQ)은 제품 유형, 제조 방식 및 총 주문 금액에 따라 유동적입니다. 적합한 신규 프로젝트의 경우 샘플 가격으로 1~5개의 샘플을 요청할 수 있습니다. 총 주문 금액이 약 1,500달러에 도달하면 여러 모델을 조합하여 주문할 수 있습니다. 1~2개 주문도 검토 가능하지만, 일반적으로 단가가 더 높습니다.
일반적인 계획 기간은 표준 부품의 경우 10~25영업일, 맞춤형 부품의 경우 20~45영업일, 프로젝트형 장비 또는 조립품의 경우 45~120영업일입니다. EXW, FOB, CIF 및 DAP 조건이 일반적으로 지원되며, FCA, CFR, CPT, CIP 및 DDP 조건은 선적 조건에 대해 협의 가능합니다.






