Overview
The SKF LOR102 is a multi-stage labyrinth bearing seal that protects mounted bearing housings from dirt, dust, and moisture while maintaining minimal rotational resistance. Constructed from aluminum and featuring a built-in O-ring, this seal rotates with the shaft to create an effective sealing barrier. The LOR102 is part of SKF’s PosiTrac sealing system and is commonly used in industrial equipment requiring reliable bearing protection without maintenance demands.
Key Features
- Multi-stage labyrinth design for effective contamination protection
- Aluminum construction for durability and light weight
- Integrated O-ring maintains seal rotation with shaft
- Virtually no friction—minimal performance impact on bearing operation
- Cost-effective alternative to contact seals
- Easily upgradeable to PosiTrac Plus sealing systems
Technical Specifications
- Shaft Bore Diameter: 3-7/16″ (87.313 mm)
- Outside Diameter: 104.902 mm (4.13″)
- Width: 22.225 mm (0.875″)
- Material: Aluminum
- Seal Type: Labyrinth with O-ring
- Weight: 0.82 kg (1.81 lbs)
- Compatible Bearing Type: Spherical Roller Bearings
- Condition: New in Box
Typical Applications
The SKF LOR102 seal is used across diverse industrial sectors where bearing protection is critical:
- Textile machinery and spinning equipment
- Paper mill and pulp processing systems
- Mining and aggregate handling equipment
- Gearbox and transmission assemblies
- Heavy-duty industrial motors and drives
- Agricultural machinery
Compatibility & Replacements
Compatible With
- SKF mounted bearing housings with spherical roller bearing applications
- Shaft diameters of 3-7/16″ (87.313 mm)
- PosiTrac and PosiTrac Plus sealing cavity designs
- Standard industrial bearing housings rated for labyrinth seals
Replaces / Drop-In Replacement For
The SKF LOR102 may be used as a replacement for equivalent labyrinth seals in bearing housings originally equipped with contact seals, subject to housing groove compatibility. Verify bore diameter and housing design with your system integrator before ordering, as seal grooves must match the housing specifications.
Works With
- SKF PosiTrac sealing systems
- Standard bearing house designs with labyrinth groove configurations
- Grease-filled cavity enhancement systems
- Industrial maintenance and predictive monitoring programs














