HOFMANN
Brand reference:74918
Products from this brand
German HOFMANN sensors HOFMANN models HOFMANN prices
HOFMANN sensors are devices that convert magnetic signals into electrical signals. By utilizing the transformation relationship between magnetic quantities and other physical quantities, with the magnetic field as a medium, they can also convert signals of other non-electrical physical quantities into electrical signals. There are two driving methods: one is driven by a permanent magnet, and the other is driven by an electromagnetic coil. The former is mostly used for detection; for example, if a moving part is made of a magnet, it will attract and emit a signal once it approaches the magnetic induction sensor. The latter is mostly used for control; if the electromagnetic coil is energized, the contacts will attract. Magnetic induction sensors are used to replace limit switches that rely on collision contact.
German HOFMANN coupling HOFMANN model HOFMANN price
HOFMANN couplings consist of components such as an internal gear ring with the same number of teeth and a flanged half-coupling with external teeth. External teeth are available in two tooth profiles: straight teeth and crowned teeth. Crowned teeth refer to external teeth machined into a spherical surface, with the center of the sphere on the gear axis. The backlash is larger than that of standard gears. Crowned tooth couplings allow greater angular misalignment (compared to straight-tooth couplings), improve tooth contact conditions, increase torque transmission capacity, and extend service life. During operation of gear couplings, relative displacement occurs between the two shafts, and the tooth surfaces of the internal and external gears periodically slide axially relative to each other, inevitably forming
German HOFMANN spindle, HOFMANN model, HOFMANN price
The HOFMANN spindle is a new technology in the field of CNC machine tools that integrates the machine tool spindle with the spindle motor. Together with linear motor technology and high-speed tooling technology, it has ushered high-speed machining into a new era. The electric spindle includes the electric spindle itself and its accessories, such as the electric spindle, high-frequency frequency converter, oil mist lubricator, cooling device, built-in encoder, and tool changer. The rotor of the motor serves directly as the machine tool spindle, and the housing of the spindle unit acts as the motor frame. In conjunction with other components, this achieves the integration of the motor and the machine tool spindle. HOFM
German HOFMANN bearings HOFMANN models HOFMANN prices
HOFMANN bearings have raceways on both the inner and outer rings, and the inner and outer rings can move relative to each other along the bearing axis. This type of bearing is particularly suitable for withstanding combined loads, i.e., loads acting radially and axially at the same time. The axial load carrying capacity of angular contact ball bearings increases as the contact angle α increases. The contact angle is the angle between the line connecting the contact points of the ball and the raceway in the radial plane and the perpendicular to the bearing axis. HOFMANN bearing applications Single-row angular contact ball bearings: machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, front wheels of small cars, differentials
HOFMANN motor Germany HOFMANN model HOFMANN price
HOFMANN motors are a type of electric motor powered by simultaneously connecting to 380V three-phase AC current (with a phase difference of 120 degrees). Because the rotor of a three-phase asynchronous motor rotates in the same direction but at a different speed than the stator's rotating magnetic field, there is slip, hence the name three-phase asynchronous motor. The rotor speed of a three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor windings generate electromotive force and current due to relative motion with the magnetic field, interacting with the magnetic field to produce electromagnetic torque, achieving energy conversion. HOFMANN motor performance motor spindle shaft