World Pumps

Major news, innovation and real-life applications for pumps and ancillary equipment.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

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Optimize your designs, reduce machining time, and lower your costs.

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

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Diagrams and Calculator Inputs
 Shaft Shoulder Fillet Diameter D  
 Groove Depth t  
 Groove Radius r  
 Shaft Diameter d D - 2t

Stress Concentration Factors

Input data
D = 100 mm
t = 10 mm
r = 10 mm
Answer
 1.64
 
 2.57
 
Note that the stress concentration factors are calculated from experimental data using curve fitting, so only two decimal places are given.