Selection Criteria Selection flow based on function conditions
The following flowchart can be used as reference for selecting an LM Guide.
- 1
Determining the Operating Conditions
Determine the necessary conditions for designing the load on the LM Guide.
- Mounting orientation
- Symbol for number of axes
- 2
Selecting a Type
Select a type that matches the conditions and temporarily decide an approximate size.
- 3
Applied Load
Calculate the applied load on the LM block.
- Calculating the applied load
- Load rating of an LM Guide in each direction
- 4
Equivalent Load
Convert the load applied on each LM block
in each direction into an equivalent load.-
Predicting the Rigidity
- Selecting a Radial Clearance (Preload)
- Service Life with a Preload Considered
- Rigidity
- Radial Clearance Standard for Each Model
- Designing the Guide System
Based on the results of the investigation, proceed to "Comparison with the Required Service Life"
-
Determining the Accuracy
- Accuracy Standards
- Guidelines for Accuracy Grades by Machine Type
- Accuracy Standard for Each Model
Based on the results of the investigation, proceed to "Comparison with the Required Service Life"
-
- 5
Static Safety Factor
Obtain the value of the static safety factor from the basic static load rating and the maximum applied load.
-
Evaluate the
static safety factorPASS: Proceed to "6. Calculating the Average Load."
- 6
Average Load
Calculate the average load by finding the mean of the applied load fluctuating during movement
- 7
Nominal Life
Calculate the the distance traveled based on the nominal life equation.
-
Compare with the
required service lifePASS: Proceed to "8. Select Options to Suit the Environment."
FAIL: Return to "1. Setting Conditions / 2. Selecting a Type." - 8
Select Options to Suit the Environment
- Contamination Protection
- Lubrication: type of lubricant, lubrication method
- Corrosion Prevention: material, surface treatment
- Selection Completed