Static Limiting Load Description
The static limiting load diagrams serve two key functions:
- Verify bearing size selection under primarily static loads
- Establish the tilting moment (MK) that the AXRY can manage alongside axial loads
The diagrams incorporate the static load safety factor S0 ≥ 4 as well as the screw and bearing ring strength.
| Label | Description |
|---|---|
| 1 | Bearing/size |
| 2 | Permitted range |
| 3 | Non-permitted range |
| MK | Maximum tilting moment [kNm] |
| Fa | Axial load [kN] |
Load Diagram Usage
- Fa - Axial load
- Fr - Radial load
- M - Tilting moment
- Operating point should be within the permitted range (inside the load curve)
Load Rating Overview
| Model | Dynamic Load C [kN] | Static Load C0 [kN] | Limiting Speed nG [min-1] |
|---|---|---|---|
| AXRY 120-NGS | 78 | 196 | 1800 |
| AXRY 200-NGS | 132 | 330 | 1500 |
| AXRY 260-NGS | 186 | 465 | 1200 |
| AXRY 325-NGS | 245 | 612 | 1000 |
| AXRY 395-NGS | 310 | 775 | 850 |
| AXRY 460-NGS | 380 | 950 | 700 |
| AXRY 580-NGS | 520 | 1300 | 550 |
| AXRY 650-NGS | 650 | 1625 | 450 |
Note: The above data are reference values. Please refer to product data sheets for specific values.
Static Load Diagrams by Size Series
AXRY 120-NGS (NGS-SBI)
AXRY 200 - 395-NGS (NGS-SBI)
AXRY 460 - 650-NGS (NGS-SBI)
Load Conditions
Axial Load
AXRY-NGS bearings can withstand bidirectional axial loads. Axial loads are transmitted through the axial roller rows.
Radial Load
Radial loads are transmitted through the radial roller rows. The radial load capacity of the bearing depends on bearing size and contact angle.
Tilting Moment
Tilting moments are absorbed through the combined action of axial and radial roller rows. The tilting rigidity of the bearing is a key factor in designing high-precision rotary axes.
Safety Factors
When selecting bearing size, appropriate safety factors should be considered:
| Application Type | Recommended Safety Factor S0 |
|---|---|
| Normal operation, no shock loads | 1.5 - 2.0 |
| High precision applications | 2.0 - 3.0 |
| Applications with shock loads | 3.0 - 4.0 |
| Heavy-duty cutting operations | 3.0 - 5.0 |
Load Calculation
Equivalent static load calculation formula:
P0 = X0 · Fr + Y0 · Fa
Where:
- P0 = Equivalent static load
- Fr = Radial load
- Fa = Axial load
- X0, Y0 = Load factors (see product data sheets)
Static safety factor:
S0 = C0 / P0
Notes
- Load diagrams apply to bearings with standard preload settings
- Actual load capacity may vary depending on installation conditions
- High-speed applications require additional consideration of thermal effects and lubrication conditions
- For special load requirements, please contact the myonic application engineering department
For detailed load diagrams and calculation data, please refer to product data sheets or contact myonic technical support.