High-Quality Bevel Gears for Precision Applications

Bevel gears are essential components in mechanical power transmission systems, transmitting power between intersecting shafts at various angles. Our bevel gears are manufactured to the highest standards, ensuring smooth operation and long service life in demanding industrial applications.

Key Product Specifications

Material: High-grade alloy steel (20CrMnTi, 42CrMo, etc.)
Hardness: HRC58-62 after carburizing and quenching
Precision Grade: DIN 6-8, AGMA 10-12
Module Range: 1-20mm
Pressure Angle: 20° standard (customizable)
Tooth Profile: Gleason or Klingelnberg system
Surface Finish: Ra 0.8-1.6μm
Heat Treatment: Carburizing, hardening, tempering

Bevel Gears Technical Data Table

Parameter	Straight Bevel	Spiral Bevel	Zerol Bevel
Gear Ratio Range	1:1 - 6:1	1:1 - 10:1	1:1 - 4:1
Max. Speed (RPM)	3,000	5,000	4,000
Efficiency	95-97%	98-99%	96-98%
Noise Level	Medium	Low	Medium-Low
Typical Applications	Machine tools, conveyors	Automotive differentials, helicopters	Aerospace, medical equipment

Bevel Gears FAQ Section

Q: What are the main advantages of spiral bevel gears compared to straight bevel gears?

A: Spiral bevel gears offer several advantages: 1) They engage more gradually with multiple teeth in contact simultaneously, resulting in smoother operation. 2) They can handle higher speeds and loads due to better load distribution. 3) They generate less vibration and noise. 4) They typically have a longer service life. The trade-off is slightly higher manufacturing cost and more complex installation requirements.

Q: How do I determine the proper backlash for my bevel gear application?

A: Proper backlash depends on several factors: gear size, operating temperature, speed, and load conditions. As general guidelines: For precision applications (machine tools, robotics), maintain 0.05-0.10mm. For industrial drives (conveyors, pumps), 0.10-0.20mm is typical. For heavy-duty applications (mining, construction), 0.20-0.30mm may be required. Always consult AGMA or DIN standards for your specific gear module and refer to manufacturer recommendations.

Q: What maintenance procedures are required for bevel gears?

A: Regular maintenance should include: 1) Lubrication - use the correct viscosity oil or grease as specified, checking levels monthly. 2) Inspection - examine teeth for pitting, wear patterns, or damage every 3-6 months. 3) Alignment check - verify proper shaft alignment annually. 4) Backlash measurement - check periodically for increases indicating wear. 5) Cleanliness - keep gear housing free of contaminants. Proper maintenance can extend gear life by 3-5 times compared to neglected systems.

Customization Options

We offer complete customization capabilities for bevel gears to meet your exact requirements:

Special Materials: Stainless steel, bronze, plastic, or special alloys
Coatings: Black oxide, phosphate, nickel, or specialized wear coatings
Bore Types: Plain, keyed, splined, or with special mounting features
Special Tooth Modifications: Profile shifting, crowning, or tip relief
Precision Levels: From standard industrial to aerospace-grade tolerances

Industry Applications

Our bevel gears serve diverse industries with reliable performance:

Industry	Typical Use	Gear Type
Automotive	Differentials, transfer cases	Hypoid & spiral bevel
Aerospace	Helicopter transmissions, actuators	Precision spiral bevel
Industrial Machinery	Machine tools, printing presses	Straight & spiral bevel
Marine	Steering systems, propulsion	Corrosion-resistant bevel
Energy	Wind turbine yaw drives	Large diameter bevel

Quality Assurance

Every bevel gear undergoes rigorous quality control:

100% material certification
Dimensional inspection with CMM
Hardness testing
Tooth contact pattern verification
Noise testing in controlled conditions
Full traceability documentation

Bevel Gears FAQ Section (Continued)

Q: What is the difference between Gleason and Klingelnberg bevel gear systems?

A: These are the two main manufacturing systems for bevel gears. Gleason system gears have a curved tooth flank with variable taper, while Klingelnberg uses a constant taper. Gleason is more common in North America, Klingelnberg in Europe. The Gleason system typically allows for more compact designs, while Klingelnberg gears may offer slightly better meshing characteristics. The systems are generally not interchangeable - gear sets must be manufactured using the same system.

Q: How does shaft angle affect bevel gear selection?

A: Shaft angle is critical in bevel gear design: 1) 90° angles are most common and allow standard designs. 2) Angles less than 90° require special consideration of clearance and tooth contact. 3) Angles greater than 90° may need modified tooth profiles. 4) Non-perpendicular applications often benefit from spiral bevel designs. Always specify your exact shaft angle when ordering, as even small deviations from standard angles require customized gear geometry.

Q: Can bevel gears be repaired if damaged?

A: Some repairs are possible depending on damage extent: Minor wear can be addressed by re-lapping the gear set. Moderate damage might allow rebuilding through metal deposition and re-machining. Severe damage usually requires replacement. The pinion (smaller gear) typically wears first and can sometimes be replaced independently. For critical applications, we recommend replacing complete gear sets to ensure proper meshing. Always consult with our engineers before attempting repairs on precision bevel gears.