Alfa Redüktör products

Single or three phase with 2 or 4 poles, totally enclosed with external ventilation. Thermal safety cutout on the single phase model. Class F winding. IP65 protection according to CEI EN 60529. Power from 9 to 270 W. Version B5 - B14. On request: motor equipped with electromagnetic brake supplied at 230 Vac, marked by letter KA (AMKA) or at 24 Vdc, marked by letter KB (AMKB). BRAKE K-KA-KB

The worm reduction gears come in two series: X and H. The series X, featuring a worm and worm wheel set, is available in versions XA with shaft and XF-XC with mounting provisions for motor. Version XF (bell housing + coupling) offers great versatility to suit a broad range of applications and provides higher efficiency than the compact line XC, where the emphasis is on space efficiency. Series H offers the same features as series X with an added plus: a spur gear pre-stage at the input end provides higher performance and a broader range of ratios than the X series. Frame sizes 110 and 90 feature a cast-iron housing cast enbloc, whereas smaller sizes use die-cast aluminium housings. The worm shaft is manufactured from casehardened and hardened alloy steel and ground-finished. The worm wheel has a cast iron hub with cast bronze insert. Hollow output shaft is supplied as standard.

VARMEC Variators are available in 7 size (VAR 2-5-10-20-30-55-75) with speed change ratio of 5:1. Each size is available as either variator only or as a combined variator and gear reducer of 1 or 2 reduction stages in a single monolithic casing. Variators can be supplied complete with IEC motors (B5 type). Output speed is changed progressively by operation of the control handwheel which is provided with a direct speed position readout. When required, the control handwhell ca be replaced with an electric servomotor with limit switch device. Also, each variator can be supplied with a proximity sensor to provide a display of output speed on a digital guage. Additionally, a digital or analogue converter can be supplied to control the output speed from an external signal.