Timken 6309-C3 Bearing — Specifications, Dimensions & Cross-Reference
The Timken 6309-C3 is a deep groove ball bearing with C3 clearance manufactured by Timken. It belongs to the 6300 series and features dimensions of 45 × 100 × 25 mm (bore × OD × width). This bearing has a dynamic load rating of 52,700 N and a static load rating of 31,500 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 45 mm |
| Outside Diameter (D) | 100 mm |
| Width (B) | 25 mm |
| Weight | 0.781 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 52,700 N |
| Static Load Rating (C₀r) | 31,500 N |
| Limiting Speed (Grease) | 6,700 rpm |
| Limiting Speed (Oil) | 8,000 rpm |
Brand Cross-Reference — 6309-C3 Equivalents
The following bearings from other manufacturers are interchangeable with the Timken 6309-C3. All share identical dimensions (45×100×25mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| Timken | Timken 6309-C3 ✦ | 52,700 | 31,500 |
| SKF | SKF 6309-C3 | 52,700 | 31,500 |
| NTN | NTN 6309-C3 | 52,700 | 31,500 |
| NACHI | NACHI 6309-C3 | 52,700 | 31,500 |
| KOYO | KOYO 6309-C3 | 52,700 | 31,500 |
| FAG | FAG 6309-C3 | 52,700 | 31,500 |
| Timken | Timken 6309-C3 | 52,700 | 31,500 |
| NSK | NSK 6309-C3 | 52,700 | 31,500 |
| NTN | NTN 6309-C3 | 52,700 | 31,500 |
| SKF | SKF 6309-C3 | 52,700 | 31,500 |
Available Variants
The Timken 6309 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the Timken 6309-C3?
The Timken 6309-C3 has a bore diameter of 45mm, outside diameter of 100mm, and width of 25mm. It weighs 0.781kg.
What is the load capacity of the Timken 6309-C3?
The dynamic load rating (Cr) is 52,700 N and the static load rating (C₀r) is 31,500 N. The maximum recommended speed is 6,700 rpm with grease lubrication or 8,000 rpm with oil lubrication.
What bearings are equivalent to Timken 6309-C3?
The 6309-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 45×100×25mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.