INDUSTRY COMPONENT

Bevel Gear

A bevel gear is a toothed mechanical component that transmits power between intersecting shafts, typically at a 90-degree angle, with conical-shaped teeth for efficient torque transfer.

Component Specifications

Definition
A bevel gear is a specialized gear type with teeth cut on a conical surface, designed to transmit rotational motion and torque between shafts that intersect at an angle, most commonly 90 degrees. The gear teeth are tapered toward the apex of the cone, allowing for smooth engagement and power transmission. Bevel gears are classified into straight, spiral, and hypoid types based on tooth geometry, each offering distinct performance characteristics in terms of noise, load capacity, and efficiency.
Working Principle
Bevel gears operate on the principle of meshing conical tooth surfaces to transfer rotational motion and torque between intersecting axes. As one gear rotates, its teeth engage with those of the mating gear, causing both to rotate in opposite directions (for external gears) or the same direction (for internal gears). The conical shape ensures continuous tooth contact along the face width, distributing loads evenly and maintaining precise angular velocity ratios determined by the number of teeth on each gear.
Materials
Common materials include alloy steels (AISI 8620, 4140), carbon steels (1045, 1020), stainless steels (304, 316), cast iron, bronze, and engineered plastics (nylon, acetal). Heat treatment processes like carburizing, induction hardening, or nitriding are often applied to enhance surface hardness and wear resistance.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Module1-10 mm
Efficiency95-98%
Face Width10-100 mm
Gear Ratio1:1 to 6:1
Shaft Angle90°
Accuracy GradeAGMA 9-12, ISO 1328 Class 7-9
Maximum Torque50-5000 Nm
Pressure Angle20°

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 23509, DIN 3971, AGMA 2005, JIS B 1704

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Tooth breakage due to overload
  • Wear and pitting from inadequate lubrication
  • Noise and vibration from misalignment
  • Heat generation from friction
  • Corrosion in harsh environments
FMEA Triads
Trigger: Insufficient lubrication or contaminated lubricant
Failure: Accelerated wear, scoring, or seizure of gear teeth
Mitigation: Implement regular lubrication schedules, use high-quality gear oils, and install filtration systems to maintain lubricant cleanliness.
Trigger: Misalignment of shafts or improper mounting
Failure: Uneven load distribution, increased noise, and premature tooth failure
Mitigation: Use precision alignment tools during installation, apply proper preload, and conduct periodic alignment checks.
Trigger: Overloading beyond design capacity
Failure: Tooth bending or breakage, leading to catastrophic gear failure
Mitigation: Design with adequate safety factors, install overload protection devices, and monitor operating conditions with sensors.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Tooth profile tolerance per ISO 1328 Class 7-9, backlash tolerance of 0.05-0.15 mm, runout tolerance within 0.02 mm
Test Method
Coordinate measuring machine (CMM) inspection, gear rolling test for noise and contact pattern, hardness testing (Rockwell C), and non-destructive testing (NDT) for cracks

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Bevel Gear

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Changzhou Baoxin Metallurgy Equipment Manufacturing Co.,Ltd.
Jiangsu, CN
Also makes: Rotary Table, Rope Sheaves, Cone Crusher and 4 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Spiral bevel gear”
View source page ↗ baoxincz.com · checked 2026-09-16
China Gear Motions
Chongqing, CN
Also makes: Helical/Bevel Gears
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bevel Gears”
View source page ↗ chinagearmotions.com · checked 2026-08-29
Dezhou Jinmai Machinery Equipment Co., Ltd.
Dezhou, Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bevel Gear Jack”
View source page ↗ dzjinmaijx.com · checked 2026-09-05
Hangzhou Chinabase Machinery Co., Ltd.
Hangzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Gear rack, bevel gear, spur gear”
View source page ↗ power-transmissions.com · checked 2026-08-29
Hangzhou HZPT Machinery
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Worm & Bevel Gear Operators”
View source page ↗ china-reducers.com · checked 2026-08-26
Hangzhou Powertrans Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bevel Gear”
View source page ↗ power-trans.org · checked 2026-08-27
Hangzhou Shengjie Reducer
Hangzhou, Zhejiang, CN
Also makes: Electric Motor, Gear Reducer, Transmission and 4 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Helical Bevel Gear Motor”
View source page ↗ shengjiereducer.com · checked 2026-08-26
Hansheng Automation (Dongguan) Co., Ltd.
Dongguan, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bevel Gear Reducer”
View source page ↗ hansmat.com · checked 2026-09-13
Hongkong Winhoo Precision Co., Ltd.
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “spiral bevel gear”
View source page ↗ cncprecision-parts.com · checked 2026-09-09
HUZHOU DURA MACHINERY SPROCKET CO., LTD.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bevel Gear”
View source page ↗ dura-china.com · checked 2026-08-29
LiftingMotion
Changsha, Hunan, CN
Also makes: Machine Screw, Ball Screw
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “LML bevel gear jack”
View source page ↗ liftingmotion.com · checked 2026-09-07
Raydafon
Ningbo, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bevel Gears”
View source page ↗ raydafon.com · checked 2026-09-14

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the difference between straight and spiral bevel gears?

Straight bevel gears have straight teeth that converge at the apex, offering simplicity and lower cost but higher noise and vibration. Spiral bevel gears have curved, helical teeth that engage gradually, providing smoother operation, higher load capacity, and reduced noise, making them suitable for high-speed applications.

How do you calculate the gear ratio for bevel gears?

The gear ratio is calculated as the number of teeth on the driven gear divided by the number of teeth on the driving gear. For example, if the driving gear has 20 teeth and the driven gear has 40 teeth, the ratio is 2:1, meaning the driven gear rotates at half the speed but with double the torque.

What maintenance is required for bevel gears?

Regular maintenance includes lubrication with appropriate gear oil, inspection for wear, pitting, or misalignment, checking backlash and tooth contact patterns, and ensuring proper mounting and alignment to prevent premature failure.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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