6426-2RS Double Sealed Deep Groove Ball Bearing For Heavy Industrial Equipment | 130×340×78 mm
The 6426-2RS is a heavy-duty single-row deep groove ball bearing engineered for demanding industrial applications requiring enhanced contamination protection. With a 130 mm bore, 340 mm outer diameter, and 78 mm width, this large-format bearing delivers substantial radial and axial load capacity. Featuring double rubber seals (2RS) on both sides, it provides effective protection against dust, moisture, and particulate contamination while retaining lubricant for extended maintenance intervals. This bearing is commonly specified for heavy electric motors, large pumps, compressors, mining equipment, and industrial gearboxes operating in challenging environments .
6426-2RSDeep Groove Ball Bearing 130x340x78 mm | Standard Series | Double Sealed
A robust deep groove ball bearing designed for high load capacity and enhanced contamination protection in heavy industrial environments. Featuring double contact rubber seals (2RS) for effective lubricant retention and contaminant exclusion, the 6426-2RS operates reliably at speeds up to 1,300 r/min . With dynamic load rating of 180 kN and static load rating of 179 kN, this bearing delivers exceptional performance in large rotating machinery where reliability under continuous operation is critical .

Ideally suited for a broad spectrum of heavy industrial and processing equipment requiring sealed protection:
Features dual contact rubber seals (2RS) that provide superior protection against dust, moisture, and particulate contamination. This sealing solution effectively retains lubricant within the bearing while excluding harmful contaminants, significantly extending service life in harsh industrial environments and reducing maintenance frequency.
With dynamic load rating of 180 kN and static load rating of 179 kN, the 6426-2RS delivers exceptional load handling capability for heavy industrial applications . The deep groove raceway geometry accommodates substantial radial loads while simultaneously supporting bidirectional axial loads, making it suitable for complex load conditions.
Manufactured from high-grade GCr15/SAE 52100 chrome steel with optimized internal geometry for reliable performance under continuous operation. The sealed configuration makes this bearing particularly suitable for applications where contamination risks are present, such as mining, aggregate processing, and heavy manufacturing environments .
| Bearing Type | Single Row Deep Groove Ball Bearing |
| ISO Dimension Series | 64 Series – Standard Series |
| Basic Designation | 6426 |
| Suffix | Open (no suffix) |
| Bore Diameter (d) | 130 mm |
| Outer Diameter (D) | 340 mm |
| Width (B) | 78 mm |
| Material (Races & Balls) | Chrome Steel (GCr15 / SAE 52100) |
| Precision Class | Standard / P5 Grade Available |
| Cage Material | Pressed Steel Cage (optional machined brass) |
| Dynamic Load Rating (Cʳ) | 180 kN |
| Static Load Rating (C₀ʳ) | 179 kN |
| Limiting Speed (Grease) | 1,300 r/min |
| Limiting Speed (Oil) | 1,300 r/min |
| Weight (approx.) | 38 kg |
Direct replacement for:
The 6426-2RS is supplied standard with double contact rubber seals for enhanced contamination protection. For applications requiring different sealing configurations, the following options are available:
• 6426 Open – No seals, for oil bath or circulating oil systems
• 6426-ZZ – Double metal shields for debris exclusion with low friction
• Special cage materials – Machined brass or polyamide options for specific operating conditions
• Enhanced precision – P5 or P4 grades for high-speed or precision applications
"A trusted solution for heavy industrial drives, large pumps, and mining equipment operating in contaminated environments where reliable sealing and high load capacity are essential."
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Details
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