Flexibility and Efficiency in Texturing Machines

Its revised compacting rollers and thread guidance rollers for texturing machines mean that Schaeffler Group Industrial offers components that ensure secure and smooth processing of the filament. These rolling bearings therefore make a considerable contribution to high processing quality. The filament reaches speeds of up to 1,500 meters a minute and the spindle can reach speeds of 25,000 rpm during processing. High running smoothness and operation without vibrations at high accelerations and speeds are essential here.

The new INA thread guidance roller FRM now has a deep drawn outer ring, which means it is manufactured without cutting. It was thus possible to make considerable reductions in the mass of the component. Overall this results in a 30-percent reduction in mass moment of inertia and a 66-percent reduction in breakaway torque, which considerably increases the acceleration capacity. The high-precision ball bearings we use also ensure less friction and lower operating clearance; the smoothness of running of the roller and filament improves as a whole. In addition, the roller is coated with a very thin layer of chromium. The wear-resistant and corrosion-resistant surface can therefore withstand the impairments caused by the high accelerations and, at the same time, ensures that even the thinnest of filaments are not damaged.

Schaeffler also supplies INA compacting roller OWA without a roller covering. This means customers can design their own coverings separately. The compacting roller is a special bearing with a tilting mechanism for the pin. This mechanism allows the roller to tilt in precisely one plane. Misalignment can thus be compensated. If the compacting roller tilted in more than one plane, thread running would become imprecise. The compacting roller is very lightweight and can accelerate quickly when it contacts the delivery shaft. An elastomer material is usually vulcanized on an aluminum sleeve in order to create a roller covering that protects the thread and ensures adhesion.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more