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Special GTR K5 Rotary Shaft Seal
The Special GTR K5 rotary shaft seals are premium dynamic gaskets engineered to guarantee perfect retention of synthetic and aggressive lubricating fluids within high-performance or high-speed mechanical systems. Featuring a co-molded internal metal reinforcement shell and a precision-cut dynamic lip preloaded with a stainless steel garter spring, they ensure an uncompromised hydrodynamic barrier. The advanced K5 design effectively prevents the ingress of external contaminants, fine dust, and moisture even under the most severe operating conditions.
Type GTR/K5 Standard
Single dynamic sealing lip profile equipped with an internal garter spring and a high-precision, fully smooth elastomer outer diameter.
Type GTR/K5 DL (Duplex)
Variant equipped with an additional secondary front dust lip without a spring, specifically designed for highly dusty environments or constant debris exposure.
| Material / Compound | Peripheral Speed | Temperature | Max Pressure |
|---|---|---|---|
| Premium FKM K5 High-stability Fluoroelastomer | Up to 35.0 m/s | -20°C / +200°C | 0.05 MPa Standard atmospheric |
| Hi-Tech NBR 75 ShA Special Nitrile Rubber | Up to 12.0 m/s (0.5 m/s at low regimes) | -30°C / +100°C | 0.05 MPa Standard atmospheric |
Constant Radial Load
The embedded spring exerts a calibrated, continuous radial pressure on the shaft, compensating for elastomer aging, micro-run-out, and structural wear.
Rubberized Coating
The outer shell ensures optimal static sealing within the housing, compensating for differential thermal expansion and metal bore micro-roughness.
K5 Lip Precision Cut
The primary sealing lip is finished with a sharp geometric precision cut. The angle creates a hydrodynamic wedge utilizing the oil film's surface tension.