Load Ratings in All Directions and Static Permissible Moment (SKR)
Load Rating
Caged Ball LM Guide Actuator Model SKR consists of an LM Guide, a Ball Screw and a support bearing.
LM Guide Unit
Model SKR is capable of receiving loads in four directions (radial, reverse radial and lateral directions). Its basic load ratings are equal in all four directions (radial, reverse radial and lateral directions), and their values are indicated in Table4
Ball Screw Unit
Since the inner block is incorporated with a ball screw nut, model SKR is capable of receiving an axial load. The basic load rating value is indicated in Table4
Bearing Unit (Fixed Side)
Since housing A contains an angular bearing, model SKR is capable of receiving an axial load. The basic load rating value is indicated in Table4
Equivalent Load (LM Guide Unit)
The equivalent load when the LM Guide unit of model SKR simultaneously receives loads in all directions is obtained from the following equation.
| PE | Equivalent load (N) : Radial direction : Reverse radial direction : Lateral directions |
|---|---|
| PR | Radial load (N) |
| PL | Reverse radial load (N) |
| PT | Lateral load (N) |
Static Permissible Moment (LM Guide Unit)
The Inner block is capable of receiving moment loads in all three (3) directions. Table5 shows the permissible static moment in the MA , MB , MC directions.
