6305-2RS Double Rubber-Sealed Deep Groove Ball Bearing For Electric Motors And Industrial Equipment | 25×62×17 mm
The 6305-2RS is a Double Rubber-Sealed Deep Groove Ball Bearing engineered to deliver reliable performance in demanding environments where protection against moisture, dust, and contaminants is essential. Fitted with two synthetic rubber contact seals (2RS) on both sides, this bearing ensures effective lubrication retention and prevents ingress of fine particles or fluids. Featuring a 25 mm bore, it is an ideal choice for electric motors, pumps, gearboxes, and industrial machinery requiring robust sealing and smooth operation under moderate to heavy loads .
6305-2RS Deep Groove Ball Bearing 25×62×17 mm | ISO 03 Series – Light | Double Rubber Sealed
Featuring a precision-machined deep groove raceway design, this sealed bearing is rated for stable operation at speeds up to 17,000 r/min (Oil) . Engineered to accommodate moderate radial loads and light axial loads in both directions, the 6305-2RS provides consistent performance in applications where effective sealing against moisture and contaminants is critical for long-term reliability .

Designed for a wide range of applications requiring sealed protection, moderate load capacity, and consistent performance in medium-sized assemblies:
Manufactured to ISO 03 series dimensions (25×62×17 mm), this bearing delivers substantial load capacity within a widely adopted size profile. With a dynamic load rating of 23.4 kN and static load rating of 11.6 kN, it is suitable for applications requiring robust radial support and moderate axial thrust capability .
Two synthetic rubber contact seals (2RS) provide reliable protection against moisture, dust, and contaminants while maintaining stable internal lubrication. This sealing solution is ideal for applications operating in humid, dirty, or wash-down environments where bearing longevity is critical .
Available in precision grades up to ABEC 3 (P6), the 6305-2RS features optimized internal geometry and superfinished raceways to ensure minimal vibration, low noise, and consistent torque across various speed ranges and load conditions .
For applications involving higher operating temperatures or press-fit mounting, a C3 (greater than normal) radial internal clearance variant is available to accommodate thermal expansion and ensure optimal performance .
| Bearing Type | Single Row Deep Groove Ball Bearing |
| ISO Dimension Series | 03 Series – Light |
| Basic Designation | 6305 |
| Suffix | 2RS (Double Rubber Contact Seals) |
| Bore Diameter (d) | 25 mm |
| Outer Diameter (D) | 62 mm |
| Width (B) | 17 mm |
| Material (Races & Balls) | Chrome Steel (GCr15 / SAE 52100) |
| Precision Class | P0 / P6 / P5 (ABEC 1/3/5) Available |
| Cage Material | Steel Stamped or Reinforced Nylon |
| Dynamic Load Rating (Cʳ) | 23.4 kN |
| Static Load Rating (C₀ʳ) | 11.6 kN |
| Limiting Speed (Grease) | 12,000 r/min |
| Limiting Speed (Oil) | 17,000 r/min |
| Weight (approx.) | 230 g |
Common manufacturer equivalents include:
The 6305-2RS is supplied as standard with dual rubber contact seals, offering optimal protection in demanding environments. For applications where non-contact protection is sufficient and higher speed capability is required, the double metal shielded version (6305-ZZ) is available as an alternative configuration. Bearings with C3 internal clearance can also be supplied for high-temperature or high-interference fit applications .
"Select the 6305-2RS for electric motors, pumps, and industrial equipment where reliable sealing against moisture and contaminants ensures long-term operational reliability."
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Details
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Details
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Details
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Details
The 6303-ZZ is a Double Metal Shielded Deep Groove Ball Bearing engineered for applications demanding reliable protection against dust and solid contaminants while maintaining high-speed capability. Equipped with two non-contact metal shields (ZZ) on both sides, this bearing effectively prevents ingress of larger particles and retains grease lubrication with minimal friction. With a 17 mm bore, it is a versatile choice for electric motors, pumps, compressors, and industrial equipment where compact dimensions, moderate load capacity, and long service life are required.
Details
The 6305-2RS is a Double Rubber-Sealed Deep Groove Ball Bearing engineered to deliver reliable performance in demanding environments where protection against moisture, dust, and contaminants is essential. Fitted with two synthetic rubber contact seals (2RS) on both sides, this bearing ensures effective lubrication retention and prevents ingress of fine particles or fluids. Featuring a 25 mm bore, it is an ideal choice for electric motors, pumps, gearboxes, and industrial machinery requiring robust sealing and smooth operation under moderate to heavy loads .
Details
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Details
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