KOYO 51101 Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 51101 is a thrust ball bearing manufactured by KOYO. It belongs to the 51100 series and features dimensions of 12 × 26 × 9 mm (bore × OD × width). This bearing has a dynamic load rating of 8,710 N and a static load rating of 5,730 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 12 mm |
| Outside Diameter (D) | 26 mm |
| Width (B) | 9 mm |
| Weight | 0.022 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 8,710 N |
| Static Load Rating (C₀r) | 5,730 N |
| Limiting Speed (Grease) | 10,000 rpm |
| Limiting Speed (Oil) | 13,000 rpm |
Brand Cross-Reference — 51101 Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 51101. All share identical dimensions (12×26×9mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 51101 ✦ | 8,710 | 5,730 |
| Timken | Timken 51101 | 8,710 | 5,730 |
| SKF | SKF 51101 | 8,710 | 5,730 |
| NACHI | NACHI 51101 | 8,710 | 5,730 |
| Timken | Timken 51101 | 8,710 | 5,730 |
| FAG | FAG 51101 | 8,710 | 5,730 |
| NSK | NSK 51101 | 8,710 | 5,730 |
| SKF | SKF 51101 | 8,710 | 5,730 |
| NTN | NTN 51101 | 8,710 | 5,730 |
Available Variants
The KOYO 51101 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 51101?
The KOYO 51101 has a bore diameter of 12mm, outside diameter of 26mm, and width of 9mm. It weighs 0.022kg.
What is the load capacity of the KOYO 51101?
The dynamic load rating (Cr) is 8,710 N and the static load rating (C₀r) is 5,730 N. The maximum recommended speed is 10,000 rpm with grease lubrication or 13,000 rpm with oil lubrication.
What bearings are equivalent to KOYO 51101?
The 51101 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 12×26×9mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.