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62 Series
Home Deep Groove Ball Bearings 62 Series

6209 Single Row Deep Groove Ball Bearing | 45×85×19 mm | Versatile Standard Series

6209 Single Row Deep Groove Ball Bearing | 45×85×19 mm | Versatile Standard Series

Belonging to the globally standardized 62 series, the 6209 deep groove ball bearing offers an optimal balance between load-carrying capacity and high-speed capability. With boundary dimensions of 45 mm (bore), 85 mm (outer diameter), and 19 mm (width), this medium-duty bearing is highly adaptable to varied mechanical environments. The open architecture facilitates direct integration into oil-bath systems or central lubrication networks, giving engineers complete control over sealing and maintenance protocols for specific operating conditions.

6209 Deep Groove Ball Bearing 45×85×19mm | ISO 62 Series | Unsealed Open Design

Built with finely honed raceway kinematics, the 6209 ensures rotational stability even under demanding operational speeds, reaching up to 10,000 r/min with oil lubrication. It provides a dynamic load rating of 33.2 kN and a static rating of 21.6 kN. This specific performance matrix makes it highly effective for drivetrains and rotational axes that experience continuous moderate-to-heavy radial loads, along with simultaneous axial forces in both directions.

6209 Single Row Deep Groove Ball Bearing | 45×85×19 mm | Versatile Standard Series

Comprehensive Applications

Recognized for its multi-industry adaptability, the 6209 is a critical component for rotational reliability across multiple sectors.

Electric Motors & Power Generation
  • Industrial AC/DC motor rotors
  • HVAC system fan drives
  • Alternators and generator sets
  • Servo motor assemblies
Fluid Handling & Compression
  • Centrifugal water pumps
  • Industrial air compressors
  • Hydraulic gear pumps
  • Vacuum system drivetrains
Agricultural & Heavy Machinery
  • Tractor transmission systems
  • Harvesting and baling equipment
  • Conveyor belt drive pulleys
  • Material sorting machinery
Automotive & Transportation
  • Commercial vehicle transmissions
  • Wheel hub assemblies
  • Drivetrain auxiliary components
  • Two-wheeler engine systems

Key Performance Features

01. High-Speed Rotational Stability

Machined from premium GCr15 chrome steel, the internal rolling elements and raceways are precision-ground to minimize rotational friction. This tight tolerance control reduces heat generation, suppresses vibration, and ensures sustained mechanical efficiency during high-speed continuous operation.

02. Balanced Load Distribution

The optimized 45×85×19 mm geometry of the 6209 is specifically engineered to distribute mechanical stress evenly. With a dynamic rating of 33.2 kN, it effectively absorbs standard operational loads while its structural rigidity prevents premature wear during sudden torque fluctuations.

03. Seamless Lubrication Integration

Designed without integral shields or rubber seals, the open configuration of the 6209 allows for immediate fluid access. It is the preferred choice for enclosed gearbox designs where gear oil serves as the primary lubricant, or for custom housings utilizing external rotary shaft seals.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 62 Series – Medium Duty
Basic Designation 6209
Suffix Open (Unsealed / Unshielded)
Bore Diameter (d) 45 mm
Outer Diameter (D) 85 mm
Width (B) 19 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard (P0) / P6 / P5 Available
Cage Material Stamped Steel (Standard)
Dynamic Load Rating (Cʳ) 33.2 kN
Static Load Rating (C₀ʳ) 21.6 kN
Limiting Speed (Grease) 8,500 r/min
Limiting Speed (Oil) 10,000 r/min
Weight (approx.) 0.41 kg

Interchange Part Numbers

Manufactured in strict adherence to ISO dimensional standards, this unit serves as a direct drop-in replacement for equivalent models from major global brands:

  • SKF: 6209
  • NSK: 6209
  • FAG: 6209
  • NTN: 6209
  • KOYO: 6209
  • TIMKEN: 6209
  • MRC: 673ZZ

Design & Configuration

While the baseline 6209 is an open-type bearing, it is also stocked in enclosed variations for environments prone to particulate ingress. Engineers can specify the 6209-2RS (dual NBR contact seals for moisture/dust protection) or the 6209-ZZ (dual non-contact metal shields for high-speed dry environments).

"The 6209 deep groove ball bearing delivers consistent, low-friction performance for medium-duty power transmission. Its standard 45mm bore and robust load ratings make it an essential, versatile component for motor and pump manufacturers."

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