SKF 51104 Bearing — Specifications, Dimensions & Cross-Reference
The SKF 51104 is a thrust ball bearing manufactured by SKF. It belongs to the 51100 series and features dimensions of 20 × 35 × 10 mm (bore × OD × width). This bearing has a dynamic load rating of 12,500 N and a static load rating of 9,300 N, making it suitable for medium-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 20 mm |
| Outside Diameter (D) | 35 mm |
| Width (B) | 10 mm |
| Weight | 0.038 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 12,500 N |
| Static Load Rating (C₀r) | 9,300 N |
| Limiting Speed (Grease) | 7,500 rpm |
| Limiting Speed (Oil) | 10,000 rpm |
Brand Cross-Reference — 51104 Equivalents
The following bearings from other manufacturers are interchangeable with the SKF 51104. All share identical dimensions (20×35×10mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| SKF | SKF 51104 ✦ | 12,500 | 9,300 |
| Timken | Timken 51104 | 12,500 | 9,300 |
| NACHI | NACHI 51104 | 12,500 | 9,300 |
| KOYO | KOYO 51104 | 12,500 | 9,300 |
| Timken | Timken 51104 | 12,500 | 9,300 |
| FAG | FAG 51104 | 12,500 | 9,300 |
| NSK | NSK 51104 | 12,500 | 9,300 |
| NTN | NTN 51104 | 12,500 | 9,300 |
| SKF | SKF 51104 | 12,500 | 9,300 |
Available Variants
The SKF 51104 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the SKF 51104?
The SKF 51104 has a bore diameter of 20mm, outside diameter of 35mm, and width of 10mm. It weighs 0.038kg.
What is the load capacity of the SKF 51104?
The dynamic load rating (Cr) is 12,500 N and the static load rating (C₀r) is 9,300 N. The maximum recommended speed is 7,500 rpm with grease lubrication or 10,000 rpm with oil lubrication.
What bearings are equivalent to SKF 51104?
The 51104 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 20×35×10mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.