Free Engineering Tool
Stud Bolt Torque Calculator
Calculate tightening torque and preload for double-end stud bolts. Same torque approach as standard bolts, adapted for stud applications.
Results
Stud Bolt Preload & Torque
Same equations as standard bolts. For stud bolts, ensure consistent lubrication on nut threads and bearing surface for predictable preload.
⚠️ Torque-based tightening has ±25% uncertainty. For critical flange joints, hydraulic tensioning is preferred.
Nikolai Shelkovenko
Nikolai Shelkovenko is a vibration analysis engineer and the founder and CEO of Vibromera. For more than 15 years he has balanced rotating equipment in the field rather than on a test bench: mulchers, industrial fans, crushers, centrifuges, shafts and spindles. That work is what the Balanset instruments grew out of — they were designed as a tool a specialist can carry to the machine and use alone, on site, not as laboratory equipment. Vibromera was founded in 2017 and has been based in Porto, Portugal, since 2023. Development, assembly and support of the Balanset line all happen here. The flagship instrument is the Balanset-1A, a portable analyser for single- and two-plane balancing and for vibration diagnostics. Nikolai is personally involved in customer support, in working through difficult balancing cases and in the development of the software. He works with customers worldwide, in any language.
