Hysteresis Brake

Product name：HB series standard hysteresis brake

HB series standard Hysteresis brakes are categorized into single ended shaft and double ended shafts, and are being widely sed for torque loading and power absorption in test benches, actuators, etc.

Product Details

Working principle

　　The stator poles in a mesh shape and a rotor /shaft assembly made of special materials are fixed together but do not touch each other, and the hysteresis principle in magnetism can be used to control the torque. When the pole coil is not energized, the rotor / shaft can rotate freely on the ball bearing. But when the coil a magnetic force generated by a magnet or a role in the stator flux during the poles, the air gap into the magnetic field i.e., the rotor also because of the hysteresis effect and produce a braking effect. Since the torsion force is completely generated by the magnetic field between the air gaps, rather than the effect of friction or shear, the hysteresis brake can provide an absolutely smooth, continuously adjustable torsion load, which is not affected by the speed and operates quietly and silently. Except for ball bearings, there are no components that wear out.

　　In current-controlled hysteresis brakes, torque adjustment and control is provided by the excitation coil. This allows full control of the torque by adjusting the DC current of the excitation coil. Adjustable from a minimum value (bearing resistance) to a maximum value of 10-20% above the rated torque. These brakes use the same working principle as our permanent magnet hysteresis brakes, but the magnetic field is replaced with a magnetic field coil, which provides the precise magnetic field strength required for the rated torque. Hysteresis brakes can be divided into three types according to the cooling method, natural air cooling type, compressed air cooling and blower cooling.

Selection reference:

　　Specifications of HB series standard hysteresis brakes:

Model	Rated torque	Rated current	Voltage	Coil resistance (At 25℃±10%)	weight	Rated slip power		Moment of inertia	Peak speed
	Rated torque	Rated current	Voltage	Coil resistance (At 25℃±10%)	weight	5 minutes	continued	Moment of inertia	Peak speed
	kg·cm	mA	VDC	Ω	kg	watts	watts	kg·cm²	rpm
HB-300	0.03	135	24	180	0.12	8	2	3.3×10 ¯ ⁴	20000
HB-201	0.2	192	24	125	0.15	25	6	1.5×10 ¯ ³	20000
HB-301	0.3	208	24	115	0.21	30	8	6.8×10¯³	20000
HB-501	0.5	208	24	115	0.21	30	8	6.8×10¯³	20000
HB-801	0.7	200	24	112	0.26	40	10	1.2×10¯²	20000
HB-102	1	200	24	120	0.39	55	15	4.6×10¯²	20000
HB-202	2	203	24	118	0.51	75	20	6.8×10¯²	15000
HB-302	3	390	24	62	0.9	120	35	1.8×10¯¹	15000
HB-502	5	390	24	62	0.9	120	35	1.8×10¯¹	15000
HB-103	10	250	24	96	1.8	320	80	1.1×10	15000
HB-203	20	315	24	76	3.5	460	115	3.2×10	10000
HB-303	30	750	24	32	5.2	680	165	6.8×10	10000
HB-503	50	750	24	32	9.6	1000	200	1.3×10	10000
HB-603	60	1500	24	16	11	1400	225	1.4×10	10000
HB-114	110	1200	24	20	20.2	1200	350	5.6×10	10000
HB-124	120	1200	24	20	21.8	1200	350	6.2×10	10000

　　Application areas:

　　For open-loop and closed-loop control of precise torque, tension and stop positioning, such as tension control of copper wire of winding machine in motor manufacturing industry, tension control of cable transformer, textile and other industries, and precise positioning control of machine tools and intelligent automation equipment.

　　Application picture: