AIGI Environmental Inc.
AIGI 522-N Composite Rotary Seal
The AIGI 522-N is a molded composite-material rotary seal made of NBR, built for protecting large-diameter rotating equipment. It belongs to AIGI's 522 composite series, which covers bore sizes far beyond what standard catalog lip seals typically reach.
Product Benefits
- Very large diameters: Sourcing a dependable seal for a very large shaft is often the hardest part of a repair; the 522-N answers that with molded composite construction available up to very large outer diameters.
- Generous runout tolerance: It tolerates a generous amount of shaft runout, which matters on big, long machines where perfect concentricity is rare.
- Solid NBR performance: The NBR compound gives it a solid all-round temperature window and respectable speed capability for its class.
Where It's Used
- Heavy rotating equipment: Typical services are large-diameter bearings, gearboxes, fans and motors.
- Found across process plants: These are the kinds of heavy rotating equipment found throughout process plants.
- Large-bore sealing: Wherever a big bore must be sealed against lubricant loss and contaminant entry, the 522 series is the intended solution.
Good to Know
- One-piece design: The 522-N is a non-split (one-piece) seal, so it is fitted where the shaft end is accessible.
- Split alternative available: For machines that cannot be opened up, AIGI offers split designs such as the 522S series.
- Faster-running choice: Within the composite family, the NBR variant is the faster-running choice, while the polyurethane 522-PU trades speed for the largest bore capability in the series.
