KOYO 1201 Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 1201 is a self-aligning ball bearing manufactured by KOYO. It belongs to the 1200 series and features dimensions of 12 × 32 × 10 mm (bore × OD × width). This bearing has a dynamic load rating of 5,530 N and a static load rating of 1,630 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 12 mm |
| Outside Diameter (D) | 32 mm |
| Width (B) | 10 mm |
| Weight | 0.034 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 5,530 N |
| Static Load Rating (C₀r) | 1,630 N |
| Limiting Speed (Grease) | 18,000 rpm |
| Limiting Speed (Oil) | 24,000 rpm |
Brand Cross-Reference — 1201 Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 1201. All share identical dimensions (12×32×10mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 1201 ✦ | 5,530 | 1,630 |
| Timken | Timken 1201 | 5,530 | 1,630 |
| SKF | SKF 1201 | 5,530 | 1,630 |
| NACHI | NACHI 1201 | 5,530 | 1,630 |
| Timken | Timken 1201 | 5,530 | 1,630 |
| FAG | FAG 1201 | 5,530 | 1,630 |
| NSK | NSK 1201 | 5,530 | 1,630 |
| SKF | SKF 1201 | 5,530 | 1,630 |
| NTN | NTN 1201 | 5,530 | 1,630 |
Available Variants
The KOYO 1201 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 1201?
The KOYO 1201 has a bore diameter of 12mm, outside diameter of 32mm, and width of 10mm. It weighs 0.034kg.
What is the load capacity of the KOYO 1201?
The dynamic load rating (Cr) is 5,530 N and the static load rating (C₀r) is 1,630 N. The maximum recommended speed is 18,000 rpm with grease lubrication or 24,000 rpm with oil lubrication.
What bearings are equivalent to KOYO 1201?
The 1201 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 12×32×10mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.