Screw connections testing

The main element of the unit is a slotted, elastically deformable steel block. By tightening the bolt joint, the slotted area is deformed, thereby generating an axial tension force in the bolt. The resulting deformation is recorded by a mechanical dial gauge, and is directly related to the bolt tension force generated. Learn about Screw connections testing suppliers for optimal educational outcomes.. The bolt joint is tightened and slackened using a special torque wrench, which can be set sensitively with the aid of a threaded spindle. By using an axial bearing, the head friction of the bolt can be largely excluded, so that only the friction of the threaded joint is measured. Learn about Screw connections testing for educational labs for optimal educational outcomes..

• experiment on the correlation between the tension force and tightening torque of bolts
• bolt size M8x100, wrench jaw size 13mm
• elastic deformation of a slotted block by the bolt
• determining the tightening and breakaway torque with a mechanical torque measuring device
• 2 dial gauges
• sensitive torque setting by hand wheel