6909-2RS Deep Groove Ball Bearing For Industrial Drives & Harsh Environments | 45×68×12 mm

The 6909-2RS is a Versatile and Sealed Deep Groove Ball Bearing built for applications requiring reliable operation under demanding conditions. Equipped with double rubber seals (2RS) on both sides, this bearing offers superior protection against dust, moisture, and contaminants, effectively retaining lubricant and ensuring smooth, maintenance‑free performance over extended periods. With a 45mm bore, it is widely used in industrial machinery, electric motors, gearboxes, and agricultural equipment where environmental sealing and durability are essential.



6909 2RS Deep Groove Ball Bearing 45×68×12 mm | ISO 19 Series – Extra Light | Double Rubber Sealed

This deep groove ball bearing features a reliable sealing solution with integrated double rubber contact seals, making it suitable for contaminated or humid operating environments. The 6909‑2RS supports high radial loads and can accommodate moderate axial loads in both directions. Its balanced design and effective sealing make it an excellent choice for industrial drives, conveyors, fans, and outdoor equipment where protection from external elements is critical.

6909-2RS Deep Groove Ball Bearing For Industrial Drives & Harsh Environments | 45×68×12 mm

Comprehensive Applications

Designed for a broad range of industrial and mechanical applications where sealing and load capacity are equally important:

Industrial Machinery & Equipment
  • Electric Motors & Gearboxes
  • Pumps & Compressors
  • Conveyor Rollers & Idlers
  • Agricultural & Construction Machinery
Automotive & Transportation
  • Automotive Accessory Drives
  • Wheel Hubs & Auxiliary Units
  • Truck Fans & Alternators
  • Marine & Off‑Road Equipment
Material Handling & HVAC
  • Industrial Fans & Blowers
  • HVAC System Motors
  • Drum Pulleys & Transmission Systems
  • Food Processing & Packaging Machinery
General Engineering & Maintenance
  • Replacement for OEM Industrial Units
  • Machinery Uplift & Retrofitting
  • Workshop Tools & Power Drives
  • Ventilation & Exhaust Systems

Key Performance Features

01. Superior Double Rubber Seal Protection

Rubber contact seals on both sides provide an effective barrier against dust, dirt, and moisture ingress. This sealed design retains grease longer, reduces contamination risk, and extends bearing life in harsh or wet environments.

02. Robust Construction for Demanding Loads

Manufactured to extra‑light series dimensions (45×68×12 mm), this bearing delivers high radial load capacity and handles moderate axial loads from either direction. Its sturdy design ensures reliable performance in continuous‑duty applications.

03. Maintenance‑Friendly & Long Service Life

The 2RS sealing effectively retains lubricant, significantly extending relubrication intervals and reducing maintenance needs. This makes the bearing ideal for applications where frequent servicing is impractical.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 69 Series – Extra Light
Basic Designation 6909
Suffix 2RS (Double Rubber Seals)
Bore Diameter (d) 45 mm
Outer Diameter (D) 68 mm
Width (B) 12 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / P5 Grade Available
Cage Material Steel Stamped
Dynamic Load Rating (Cʳ) 22.5 kN
Static Load Rating (C₀ʳ) 14.3 kN
Limiting Speed (Grease) 6,300 r/min
Limiting Speed (Oil) 8,500 r/min
Weight (approx.) 180 g

Interchange Part Numbers

Compatible cross‑references include:

  • SKF: 6909-2RS
  • NSK: 6909DDU
  • FAG: 6909-2RSR
  • NTN: 6909LLU
  • KOYO: 6909RS

Design & Configuration

The 6909-2RS comes standard with double lip‑type rubber seals, offering excellent sealing performance for wet or dusty conditions. For applications requiring less friction or higher speed, the shielded variant (6909‑ZZ) is also available.

"Ideal for industrial and outdoor applications where moisture, dust, or debris are present and reliable sealed performance is required."



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