Linear Technology
Radial Load
Force acting perpendicular to the shaft axis on a bearing or guide — along with axial load, one of the two fundamental load types that must be considered when selecting bearings and guides.
Definition
| Load Type | Direction | Example |
|---|---|---|
| Radial Load | Perpendicular to axis | Weight force on carriage |
| Axial Load | Parallel to axis | Feed force when drilling |
| Moment Load | Tipping moment | Eccentric load |
Practical Relevance
For suspended or side-mounted axes, radial load from the weight of the moving carriage and mounted payload is particularly critical. When two guide rails are arranged in parallel, radial load is distributed between both rails. Correct alignment avoids constraint forces and significantly extends bearing service life.