Custom 1.5M 20T Spiral Bevel Gear in 20CrMnTi Alloy Steel with ISO 5-6 Grade

Product Specification

Custom 1.5M 20T Spiral Bevel Gear | Durable 20CrMnTi Transmission Gear for Industrial Gearboxes

The Custom 1.5 Module 20-Tooth Spiral Bevel Gear is a precision-engineered transmission component designed for compact industrial gearbox systems requiring stable right-angle power transfer. Manufactured from high-quality 20CrMnTi alloy steel and processed through controlled carburizing heat treatment, this gear delivers an ideal balance of surface hardness, core toughness, and long-term durability.

With optimized spiral tooth geometry, it ensures smooth meshing performance, reduced vibration, and high torque transmission efficiency in demanding industrial environments.

Core Technical Parameters

• Module: 1.5M

• Number of Teeth: 20T

• Material: 20CrMnTi alloy carburizing steel

• Tooth Type: Spiral bevel gear

• Pressure Angle: 20° (customizable)

• Heat Treatment: Carburizing + quenching

• Surface Hardness: HRC 55–62

• Accuracy Grade: ISO 5-6 Grade

• Gear Ratio: Custom-designed for matched gear set

All parameters can be customized according to customer drawings or gearbox design requirements.

Material Advantages – 20CrMnTi Alloy Steel

20CrMnTi is widely used in high-performance transmission gears due to its excellent mechanical properties:

✔ Superior Carburizing Performance

Ensures deep and uniform hardened layer for improved wear resistance.

✔ High Surface Hardness

After carburizing and quenching, the tooth surface reaches HRC 58–62, enhancing resistance to pitting and scuffing.

✔ Strong Core Toughness

Maintains internal strength to withstand impact loads and cyclic stress.

✔ Stable Dimensional Performance

Minimizes distortion during heat treatment, maintaining precision accuracy.

This makes the gear highly suitable for industrial gearboxes operating under continuous load and variable speed conditions.

Performance Features

1️⃣ Smooth and Stable Transmission

Spiral bevel geometry allows gradual tooth engagement, reducing impact loads and improving transmission smoothness.

2️⃣ Enhanced Load Capacity

Optimized tooth contact pattern increases effective load distribution and bending fatigue resistance.

3️⃣ Low Noise Operation

Compared to straight bevel gears, spiral teeth significantly reduce vibration and operational noise.

4️⃣ High Transmission Efficiency

Improved contact ratio ensures efficient torque transfer with minimal energy loss.

5️⃣ Extended Service Life

Precision grinding and controlled heat treatment enhance fatigue strength and wear resistance.

Manufacturing Process

Each gear is produced under strict quality control procedures:

1. Raw material chemical composition verification

2. CNC turning and blank preparation

3. Spiral bevel gear cutting (Gleason or equivalent process)

4. Carburizing and quenching heat treatment

5. Tooth surface grinding

6. Gear meshing and contact pattern inspection

7. Runout, concentricity, and dimensional accuracy testing

8. Final anti-rust treatment and protective packaging

Comprehensive inspection ensures consistent quality and reliable performance.

Application in Industrial Gearboxes

This 1.5M 20T spiral bevel gear is ideal for:

• Compact right-angle industrial gearboxes

• Automation drive modules

• CNC machinery transmission systems

• Robotic joint reducers

• Agricultural and construction equipment

• Packaging and material handling machinery

Especially suitable for applications requiring precision, durability, and space-efficient transmission design.