KOYO 51110 Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 51110 is a thrust ball bearing manufactured by KOYO. It belongs to the 51100 series and features dimensions of 50 × 70 × 14 mm (bore × OD × width). This bearing has a dynamic load rating of 29,600 N and a static load rating of 29,000 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 50 mm |
| Outside Diameter (D) | 70 mm |
| Width (B) | 14 mm |
| Weight | 0.135 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 29,600 N |
| Static Load Rating (C₀r) | 29,000 N |
| Limiting Speed (Grease) | 4,000 rpm |
| Limiting Speed (Oil) | 5,300 rpm |
Brand Cross-Reference — 51110 Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 51110. All share identical dimensions (50×70×14mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 51110 ✦ | 29,600 | 29,000 |
| Timken | Timken 51110 | 29,600 | 29,000 |
| SKF | SKF 51110 | 29,600 | 29,000 |
| NTN | NTN 51110 | 29,600 | 29,000 |
| NACHI | NACHI 51110 | 29,600 | 29,000 |
| Timken | Timken 51110 | 29,600 | 29,000 |
| FAG | FAG 51110 | 29,600 | 29,000 |
| NSK | NSK 51110 | 29,600 | 29,000 |
| NTN | NTN 51110 | 29,600 | 29,000 |
| SKF | SKF 51110 | 29,600 | 29,000 |
Available Variants
The KOYO 51110 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 51110?
The KOYO 51110 has a bore diameter of 50mm, outside diameter of 70mm, and width of 14mm. It weighs 0.135kg.
What is the load capacity of the KOYO 51110?
The dynamic load rating (Cr) is 29,600 N and the static load rating (C₀r) is 29,000 N. The maximum recommended speed is 4,000 rpm with grease lubrication or 5,300 rpm with oil lubrication.
What bearings are equivalent to KOYO 51110?
The 51110 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 50×70×14mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.