337-1943 rectangular seal for CAT mining dump truck spare part

337-1943 rectangular seal for CAT mining dump truck spare part Featured Image
  • 337-1943 rectangular seal for CAT mining dump truck spare part
  • 337-1943 rectangular seal for CAT mining dump truck spare part

Short Description:

Rectangular seal for Caterpillar brake and final drive, inner diameter 11.13 mm, maintains stable compression by rectangular cross-section, blocks gear oil leakage and prevents silt and water ingress into bearing and brake cavity.

Product Detail

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description

This rectangular seal is molded from oil-resistant elastomer. Unlike standard O-rings, its rectangular cross-section delivers superior extrusion resistance and resists twisting under oil pressure and muddy immersion. Crack, cut damage and excessive permanent compression set will lead to gradual oil leakage and water contamination, resulting in rusted friction discs and premature bearing spalling.

Part No.:337-1943
Type: Rectangular seal
Material: Oil-resistant elastomer
Inner Diameter:11.13 mm
Feature: Rectangular cross-section, better anti-extrusion performance than common O-ring
Compatible Fluid: Gear oil
Working Condition: Oil pressure and muddy environment for wet brake and final drive
Matching System: Wet brake and final drive assembly

Application Scenarios

Fits Caterpillar mining dump trucks, wheel loaders and bulldozers, for overhaul of sealing positions on wheel wet brake and final drive assembly.

FAQ 

Q：Can rectangular seal with shallow scratch be reused?
A：Not recommended. Scratch propagates under cyclic pressure and causes oil and water ingress.

Q：Can same-size O-ring replace this rectangular seal?
A：No. Groove is designed for rectangular seal, O-ring twists and extrudes easily.

Q：What can be done if groove corner is sharp and seal gets pinched easily?
A：Improve groove radius or install backup ring to reduce extrusion load.

Q：Does short-term leakage after installation mean defective seal?
A：Not necessarily. Check groove wear, housing distortion and shear damage during installation.

Q：Does overheating final drive mean the bearing cup is damaged?
A：Check grease, contamination and preload first, then inspect cup raceway by NDT.

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