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Product Overview
This high-performance 429x457x38mm Mechanical Face Seal (also known as Floating Seal / Duo Cone Seal) is designed as a direct replacement for Goetze 76.90 H-61 SI. It consists of two metal sealing rings and two rubber O-rings. Widely used in undercarriage systems of heavy machinery, it effectively prevents lubricant leakage and blocks contaminants such as mud, water and debris in harsh operating environments.
Product Specifications
| Specification | Details |
|---|---|
| Dimensions | 429mm (ID) x 457mm (OD) x 38mm (H) – equivalent to 457x430x38mm |
| Reference Models | GNL PADO 429X457X38 / CR3810 |
| Compatible Part | 76.90 H-61 SI / GZ 76.90H-61 |
| Metal Ring Material | High-alloy cast iron / Bearing steel (GCr15 / 100Cr6) |
| Metal Ring Hardness | 58–62 HRC or 62–68 HRC (depending on material) |
| O-Ring Material | Silicone |
| O-Ring Hardness | 60–65 Shore A |
| Service Life | 4,500–6,000 hours |
| Warranty | 18 months from shipment |
| OEM Compatibility | 100% interchangeable with genuine parts |
Key Features & Benefits
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Direct OEM Replacement – Specifically designed to fit Goetze 76.90 H-61 SI with perfect interchangeability.
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High-Quality Materials – Metal rings made of high-alloy cast iron or bearing steel for superior hardness and wear resistance. Seal face precision up to Ra0.015μm.
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Extended Service Life – Rated for 4,500–6,000 hours under heavy-duty conditions, reducing maintenance frequency and total cost.
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Rugged Reliability – Self-lubricating, wear-resistant and corrosion-resistant metal faces, combined with high-quality O-rings, perform reliably in mud, abrasives, shock loads and temperature fluctuations.
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Factory Direct Pricing – Competitive pricing from an experienced Chinese manufacturer -RVTON with significant savings over OEM.
Compatible Applications
This mechanical face seal is a critical sealing component for track-type undercarriage systems, including but not limited to:
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Track Rollers
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Carrier Rollers
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Front Idlers
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Final Drives
Quality Assurance
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Material Certification – All metal rings use certified high-alloy cast iron or bearing steel.
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Hardness Testing – 100% HRC inspection to ensure consistent hardness.
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Leak Testing – Each seal assembly is pressure-tested for sealing integrity.
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Dimensional Inspection – 100% inspection of critical dimensions before shipment.
What’s Included
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2 x High-alloy cast iron / bearing steel metal seal rings
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2 x NBR rubber O-rings (FKM / other materials available on request)
