U9M4HA-2/forced air Electric Motor Datasheet

	Manufacturer typenumber	U9M4HA-2/forced air
	Manufacturer brand	Danaher
	Commutation	brush
	Short description of the motor	pancake motor-no equivalent Platinum model specified by vendor
Performance data
	Maximum rated output power motoraxis	P_rated [W]	178.000
	Nominal terminal voltage	U_nom [V]	40.000
	Maximum rated current	I_max [A]	56.000
	Maximum rated torque at standard temp.22 ^oC	T_max [Nm]	4.945
	Motorconstant at standard temp. 22 ^oC	k [^Vs/_rad or ^Nm/_A]	8.830e-2
	Maximum torque at standstill at nominal voltage	T_stall [Nm]	2.675
	Maximum theoretical velocity motoraxis at no load (and no friction of motor and reduction) and nominal voltage	ω₀ [^rad/_s]	453.001
	Maximum allowed velocity motoraxis	ω_max [^rad/_s]	628.319
	Maximum voltage allowed to prevent sparking due to brushed commutation	U_max [V]	40.000
	Maximum output power equal to ¹/₄T_stallω₀	P_max [W]	305.344
Mechanical data
	Inertia of rotor	J_rotor [kgm²]	1.900e-5
	Maximum acceleration at standstill if no load or reduction is attached	max. accel [^rad/_s2]	1.408e+5
	Constant friction torque of motor on motoraxis	T_fric [Nm]	0.021
	Velocity-dependant friction torque of motor on motoraxis	C_v [Nm/rad]	6.680e-5
	Mechanical timeconstant	τ_mech [s]	3.192e-3
Electrical data
	Resistance windings at standard temp. 22 ^oC	R [Ω]	1.310
	Winding inductance measured at terminals of motor	L [H]	1.000e-4
	Slope of the motor	S [^Nms/_rad]	5.952e-3
	Electrical timeconstant	τ_elec [s]	7.634e-5
Thermal data
	Maximum allowed temperature of windings	Θ_max [^oC]	150.000
	Maximum continuous current (thermal limit) at surround temp. 22 ^oC and at stillstand	I_{max, thermal} [A]	14.253
	Thermal resistance between rotor and ambient	R_th,total [^K/_W]	0.320
Magnet data
	the material of the magnet	magnetmaterial	unknown
	degrading of the magnetic flux density in percent per ^oC or K	TK_Br [%/K]	-2.000e-2

Remarks:

C_th,total is not provided. This means that the time when thermal stability occurs can not be calculated.
The heatsink used for this motor is 8''x16''x3/8'' Alu

The quality and completeness of the supplied information has quality index: B

This quality index is determined by specAmotor.com. Here is described what the quality index is.

U9M4HA-2/forced air Electric Motor Datasheet

Performance data

Mechanical data

Electrical data

Thermal data

Magnet data

Remarks: