Sizing Locking Device
This tool helps you find the PowerLock that meets your criteria.
If "By Shaft Diameter" option is used, the model No. that matches the specified shaft diameter is selected and whether it provides the specified torque is determined.
If you select by torque, the model numbers for the smallest shaft diameter that satisfy the specified torque will be searched.
In either case, the allowable shaft and hub surface pressure, the minimum required hub OD and maximum ID of the hollow shaft, and the allowability of radial load will be indicated for your review.
Entering your selection criteria
Enter the shaft diameter
Shaft diameter : mm
Enter the transmission torque
Transmission Torque : N・m
Service factor :
Automatic calculation from kW ratings and RPM
Transmission capacity ： kW
Speed ： r/min
Enter a value if thrust load is applied
Thrust load : N
Enter a value if radial load is applied
Radial load : N
Enter the yield point of shaft/hub material
Shaft material yield point : MPa
Hub material yield point : MPa
Transmission torque calculation result
N・m
*The required smallest hub diameter does not anticipate the safety factor
Click here for the detail selection procedure and calculation formula
Selection results
Series Characteristics 
Mounting Examples Click to view explanatory drawing 
Model No. Click to view product information 
Shaft diameter [mm] 
Outer Diameter [mm] 
Allowable Torque [N･m] 
Judgment torque 
Unit price / Delivery － For multiple units － Quantity Torque amplification factor Total price 
Seriesbased factor K2 
Shaftside surface pressure [Mpa] 
Determine shaftside surface pressure  Hubside surface pressure [Mpa] 
Judgment hubside surface pressure  Hub geometry factor K3 
Minimum required hub OD (＊) [mm] 
Maximum ID for hollow shaft [mm] 
Judgment radial load 

AS  
ASKP  
ASSS  
ADN  Mounting Examples A  
Mounting Examples B,C  
ADNKP  Mounting Examples A  
Mounting Examples B,C  
AE  Mounting Examples A  
Mounting Examples B,C  
RESS Flange mounting 
Mounting Examples A  
Mounting Examples B,C  
RESS Straight mounting 
Mounting Examples A  
Mounting Examples B,C  
KE  Mounting Examples A  
Mounting Examples B,C  
KEKP  Mounting Examples A  
Mounting Examples B,C  
KESS  Mounting Examples A  
Mounting Examples B,C  
KELP  Mounting Examples A  
Mounting Examples B,C  
TF  Mounting Examples A,B  
Mounting Examples C,D  
TFKP  Mounting Examples A,B  
Mounting Examples C,D  
ML  
EF  Mounting Examples A,B  
Mounting Examples C,D  
EL(※)  Recommended connections (1)  
Recommended connections (2) 
※ For the EL Series, the calculation results are based on the size and number of bolts and the tightening torque presented in the above recommended use. Contact us when using the product under any other pressure conditions.
Series 
Model No. Click to view product information 
Shaft diameter [mm] 
Outer Diameter [mm] 
Allowable Torque [N･m] 
Judgment torque  Unit price / Delivery  Seriesbased factor K2 
Shaftside surface pressure [Mpa] 
Determine shaftside surface pressure  Hub OD side surface pressure [Mpa] 
Judgment hub OD side surface pressure  Required hub material yield point  Judgment hub strength  Maximum ID for hollow shaft [mm] 


SL  Possible choices 1  
Possible choices 2  
Possible choices 3 