The 6209DD NTN, also known as 6209-2RS1, is a single-row deep groove ball bearing suitable for various mechanical applications. It features an inner diameter of 45.00 mm (1.7717 inches), an outer diameter of 85.00 mm (3.3465 inches), and a width of 19.00 mm (0.7480 inches). The bearing weighs 0.405 kg. It is designed with a cylindrical bore (C) and rubber seals on both sides (2RS) to protect against contaminants and retain lubrication. The steel cage (S) provides durability and standard performance. This bearing has a normal radial internal play (Cn), suitable for most applications requiring standard precision. There are no external modifications or special treatments applied to this bearing.

| Property | Specification |
|---|---|
| Item Number | 6209DD NTN |
| Also Known As | 6209-2RS1 |
| Category | Deep Groove Ball Bearings Single Row |
| Inner (d) MM | 45.00 |
| Outer (D) MM | 85.00 |
| Width (B) MM | 19.00 |
| Inner (d) Inch | 1.7717 |
| Outer (D) Inch | 3.3465 |
| Width (B) Inch | 0.7480 |
| Weight (kg) | 0.405 |
| Bore | C – Cylindrical Bore |
| Seal | 2RS – Rubber Seal on Two Sides |
| Cage Type | S – Steel or Standard Cage |
| External Modification | No External Modification |
| Radial Internal Play | Cn Normal Internal Play |


















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