Overview
The NSK PER122 triple lip bearing seal is a high-performance bearing seal component designed to protect mounted bearing units in harsh industrial environments. NSK’s specially developed triple lip seal is a one-piece moulded nitrile seal with three sealing lips for maximum protection against contaminants. This seal is ideal for applications where standard bearing seals cannot withstand heavy dust and water exposure.
Key Features
- Triple Lip Design: Triple-sealed bearings feature a secure bearing seal with three lips, offering reliable dustproofing and waterproofing superior to those of standard bearings.
- Extended Service Life: Ensures a longer service life, even when exposed to heavy airborne dust and splashes of foul water.
- Reduced Maintenance: Reduces maintenance cost through longer bearing life and extended maintenance intervals, greatly reducing maintenance costs.
- Cost-Effective Solution: Available for both setscrew and eccentric locking collar insert options and acts as a ready replacement for existing bearing units.
- Nitrile Construction: Molded single-piece design for durability and consistent sealing performance across multiple applications.
Technical Specifications
The PER122 is engineered as a replacement component for NSK Self-Lube® bearing units. The following specifications apply to this triple lip seal variant:
Typical Applications
- Water-Exposed Equipment: Self-Lube® bearing units with triple-lip sealed inserts are ideal for applications where bearings face exposure to water contamination.
- Vegetable and food processing equipment with washdown environments
- Heavy dust contamination environments (agriculture, mining, quarrying)
- Industrial machinery requiring extended maintenance intervals
- Equipment subject to splash and spray conditions
- Manufacturing facilities with harsh environmental conditions
Compatibility & Replacements
Compatible With
- NSK Self-Lube® bearing unit housings
- RHP bearing housings compatible with NSK Self-Lube® inserts
- Deep-groove ball bearing configurations (6200 series design basis)
- Setscrew locking collar mounting systems
- Eccentric collar locking arrangements
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or NSK application engineering team before ordering, as seal replacements may vary by bearing unit configuration. This seal is designed to upgrade existing bearing units to triple-lip protection standards.
Works With
- NSK Self-Lube® bearing unit ecosystems
- Standard industrial shaft locking mechanisms
- Conventional bearing unit mounting frames and pedestals
- Grease-lubricated bearing systems
