High-Precision End Teeth Solutions for Compressor Rotor Assemblies

With comprehensive design, machining, and inspection capabilities, OBT provides advanced end teeth solutions including Curvic Couplings, Hirth Couplings, curved end teeth, sector end teeth, and straight end teeth.

Compressor Rotor End Teeth are designed to achieve high-accuracy positioning, automatic centering, and reliable torque transmission between rotor discs and rotating components. They are widely used in aerospace engines, industrial gas turbines, centrifugal compressors, and other high-performance rotating equipment.

Manufacturing Capabilities

OBT is equipped with advanced precision grinding and machining equipment, including:

· CNC internal and external cylindrical grinders

· Precision surface grinders

· CNC vertical grinders

· CNC contour grinders

These capabilities enable the high-precision manufacturing of complex rotating components, including:

· Compressor rotor discs

· Rotor shafts

· Multi-stage compressor assemblies

· Precision rotating structures

Machining Capacity

· Maximum end teeth machining diameter: Ø3400 mm

· Maximum machining length: 6000 mm

· Maximum vertical grinding swing diameter: 2500 mm

· Maximum contour grinding swing diameter: 1200 mm

· Machining range: Ø30 mm – Ø2500 mm

· Geometric accuracy: ≤0.002 mm

Advanced End Teeth Manufacturing Capability

Curvic Couplings

Curvic coupling technology provides precise radial positioning and excellent repeatability between compressor rotor discs. The unique tooth geometry ensures accurate alignment and stable transmission of high rotational loads.

Hirth Couplings

Hirth coupling designs provide high rigidity, compact structure, and reliable mechanical locking, making them suitable for compressor rotors operating under high-speed and high-load conditions.

Curved End Teeth

The curved tooth profile enables full-surface contact between mating teeth. Compared with conventional straight teeth, curved end teeth provide better load distribution and improved resistance against deformation and vibration.

Customized Rotor End Teeth Solutions

OBT can develop customized end teeth structures according to compressor rotor design requirements, including:

· Curved end teeth

· Sector end teeth

· Straight end teeth

· Custom indexing and positioning structures

Precision Performance

OBT Compressor Rotor End Teeth are manufactured to meet strict requirements for high-speed rotating equipment:

· Repeat positioning accuracy: ±1"

· Indexing positioning accuracy: ±2"

· Tooth contact area: ≥90%

· Tooth contact ratio: 100%

Precision grinding and advanced inspection processes ensure:

· Accurate rotor alignment

· Excellent interchangeability

· Uniform load distribution

· Long-term operational stability

High-Precision Rotor Positioning

Precision-ground end teeth provide accurate axial and radial positioning between compressor rotor discs, ensuring proper alignment of multi-stage rotor assemblies and minimizing assembly deviation.

High Torque Transmission Capability

The large tooth engagement area improves tooth surface strength and root strength, allowing compressor rotors to transmit high torque while maintaining structural reliability during continuous operation.

Improved High-Speed Stability

Compressor rotors operate under extreme centrifugal forces. The optimized end teeth design provides:

· High structural rigidity

· Reduced vibration

· Improved dynamic balance performance

· Stable operation at high rotational speeds

The curved tooth structure distributes contact stress evenly across the entire tooth surface, reducing the risk of:

· Tooth edge damage

· Local stress concentration

· Uneven contact wear

· Fatigue failure

Compact and Lightweight Rotor Design

End teeth technology integrates positioning and torque transmission functions, allowing compressor rotor systems to achieve:

· Reduced component weight

· Simplified assembly structure

· Easier maintenance

· Improved overall efficiency

Applications

Aerospace & Gas Turbine Applications

· Aero engine compressor rotors

· Gas turbine compressor rotors

· Multi-stage compressor assemblies

· High-speed turbine rotating systems

Industrial Compressor Systems

· Centrifugal compressors

· Turbo compressors

· Oil & gas compression equipment

· Power generation compressor systems

Advanced Rotating Equipment

· Heavy-duty rotating machinery

· Precision rotor assemblies

· High-speed transmission systems

Why Choose OBT Compressor Rotor End Teeth?

✓ Complete design and manufacturing capability for Curvic and Hirth coupling systems
✓ Large-scale machining capability up to Ø3400 mm diameter and 6000 mm length
✓ High-precision grinding accuracy up to 0.002 mm
✓ Superior rotor positioning and self-centering performance
✓ Excellent high-speed stability and torque transmission capability
✓ Customized solutions for aerospace and industrial compressor applications

OBT delivers precision-engineered Compressor Rotor End Teeth solutions for reliable, high-speed, and high-performance rotating systems.