NSK 1209-C3 Bearing — Specifications, Dimensions & Cross-Reference
The NSK 1209-C3 is a self-aligning ball bearing with C3 clearance manufactured by NSK. It belongs to the 1200 series and features dimensions of 45 × 85 × 19 mm (bore × OD × width). This bearing has a dynamic load rating of 19,000 N and a static load rating of 7,650 N, making it suitable for medium-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 45 mm |
| Outside Diameter (D) | 85 mm |
| Width (B) | 19 mm |
| Weight | 0.350 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 19,000 N |
| Static Load Rating (C₀r) | 7,650 N |
| Limiting Speed (Grease) | 7,500 rpm |
| Limiting Speed (Oil) | 9,500 rpm |
Brand Cross-Reference — 1209-C3 Equivalents
The following bearings from other manufacturers are interchangeable with the NSK 1209-C3. All share identical dimensions (45×85×19mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NSK | NSK 1209-C3 ✦ | 19,000 | 7,650 |
| Timken | Timken 1209-C3 | 19,000 | 7,650 |
| SKF | SKF 1209-C3 | 19,000 | 7,650 |
| NACHI | NACHI 1209-C3 | 19,000 | 7,650 |
| KOYO | KOYO 1209-C3 | 19,000 | 7,650 |
| Timken | Timken 1209-C3 | 19,000 | 7,650 |
| FAG | FAG 1209-C3 | 19,000 | 7,650 |
| NTN | NTN 1209-C3 | 19,000 | 7,650 |
| SKF | SKF 1209-C3 | 19,000 | 7,650 |
Available Variants
The NSK 1209 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NSK 1209-C3?
The NSK 1209-C3 has a bore diameter of 45mm, outside diameter of 85mm, and width of 19mm. It weighs 0.350kg.
What is the load capacity of the NSK 1209-C3?
The dynamic load rating (Cr) is 19,000 N and the static load rating (C₀r) is 7,650 N. The maximum recommended speed is 7,500 rpm with grease lubrication or 9,500 rpm with oil lubrication.
What bearings are equivalent to NSK 1209-C3?
The 1209-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 45×85×19mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.