L 42 x 55 x 10 Labyrinth Seal - GMN

Description

The GMN L 42 x 55 x 10 labyrinth seal is a precision-engineered non-contact sealing solution designed for high-speed and high-performance applications. Unlike conventional contact seals, this labyrinth seal operates without friction between rotating and stationary components, ensuring minimal heat generation and virtually no wear.

With an inner diameter of 42 mm, outer diameter of 55 mm, and width of 10 mm, this seal is particularly suitable for high-speed spindle systems, precision bearing units, and advanced industrial machinery where low friction and high rotational accuracy are critical.

The steel inner ring provides structural strength and dimensional stability, while the aluminum outer ring reduces overall weight and enhances heat dissipation. The non-contact labyrinth design effectively protects against dust, contamination, and splash water while maintaining high rotational efficiency.

Dimensions

• Inner Diameter (ID): 42 mm

• Outer Diameter (OD): 55 mm

• Width (W): 10 mm

• Gap Diameter (e): 52 mm

• Axial Clearance (Sax): 0.400 mm

• Weight: 0.050 kg

Shaft & Housing Requirements

• Chamfer: 1 mm x 15°

• ID Tolerance: h6

• OD Tolerance: K7

• Surface Finish: Rz ≤ 16 µm ; Ra ≤ 3.2 µm

Proper machining and tolerance compliance are essential to ensure optimal sealing performance and long service life.

Performance Ratings

• Maximum Speed: 30,100 RPM

• Temperature Range: -40°C to +200°C

The high allowable speed makes this labyrinth seal ideal for precision spindle assemblies and other high-speed rotating systems.

Applications

• CNC spindles

• Machine tool spindles

• High-speed electric motors

• Precision bearing units

• Advanced industrial drive systems

Key Advantages

• Non-contact design - no friction, no wear

• Extremely high speed capability

• Excellent contamination protection

• Low heat generation

• Long operational life

• Suitable for demanding industrial environments