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  • Name that thread
    Four basic steps identify threads on industrial hydraulic fittings. Hydraulic fittings have either tapered or parallel threads. But tapered ones are not always pipe threads, and pipe threads can be parallel. Using a thread-pitch gage is the easiest way to determine pitch. Use calipers measure
  • Backlash Data for Various Leadscrew Options Available from EADmotors
    Backlash is the total amount of free movement between a lead-screw and a nut as measured along the axis of motion. Factors that influence backlash relate to thread geometry and especially include pressure angle and pitch diameter.
  • Back Driving Forces on Linear Actuators
    Back driving force refers to the force value, that when applied to the leadscrew on a linear actuator that is not energized will result in linear travel of the leadscrew. Several factors are considered for determining the back drive force for a specific application. Thread pitch, profile, friction
  • NPT vs. BSPT Pipe FAQs (7)
    Why are there both NPT and BSPT threads?. What do the initials mean?. Does ATP offer fittings in BSPT, BSPP, NPT and NPS?. Can NPT or NPS be fitted to BSPT?. Are NPT/NPS threads compatible with BSPT?. How are the thread pitches different?. How do I determine the pitch?
  • The Ultimate Tapping Screw for Plastics
    The marketplace is flooded by offerings of some format of high performance self-tapping screw that claims to work better than anything else for threading into plastic. Most seem to have more than just general buzz going for them; different flank angles, tailored pitches, graduated point diameters
  • Leadscrews roll
    Leadscrews provide finer pitch and faster motion than comparable ball screws. These leadscrews are all less than 80-mm long with both right and left-hand threads and leads as fine as 0.65 mm. Leadscrews can have fast leads up to 100 mm/rev that are both efficient and accurate. This type of thread
  • Stepper motors tread on servosystem turf
    that includes an internally molded thread mated to an externally threaded shaft. Rotary motion is converted to linear movement with displacement determined by the pitch of the leadscrew and step angle of the motor. This one provides a linear resolution of 0.001 in./pulse. The holding-torque curve