NPT025 MA

Mechanical data	1-stage		2-stage
Ratio	3	4	9	12	15	16	20	28	30	40
Efficiency under full load ŋ [%]	97		95
Running noise L_PA[dB] at n1 = 3000 rpm without load	≤ 61		≤ 59
Service life L_h [h]	> 20000
Weight [kg] Depending on the clamping hub diameter and selected adapter plate	4.4		4.7
Mass moment of inertia J₁ [kgcm²] Based on the drive Letters = specification of the clamping hub diameter
A = 9 mm	---	---	0.28	0.23	0.22	0.22	0.21	0.2	0.19	0.19
B = 11 mm	---	---	0.3	0.25	0.23	0.24	0.23	0.21	0.21	0.21
C = 14 mm	0.75	0.57	0.37	0.32	0.31	0.31	0.3	0.29	0.29	0.28
D = 16 mm	0.9	0.72	0.5	0.45	0.44	0.44	0.43	0.42	0.41	0.41
E = 19 mm	0.99	0.8	0.58	0.53	0.52	0.52	0.51	0.5	0.5	0.49
G = 24 mm	2	1.8	---	---	---	---	---	---	---	---
H = 28 mm	1.7	1.5	---	---	---	---	---	---	---	---
Torques and speeds
Maximum torque T_2a[Nm]	185	185	185	185	185	185	185	185	168	185
Nominal output torque T_2N [Nm] At n_1N	63	58	63	60	58	58	58	53	58	63
Maximum acceleration torque T_2B [Nm] Maximum 1000 cycles per hour	125	115	125	125	120	115	115	115	105	115
EMERGENCY STOP torqueT_2Em.stop [Nm] 1000 times during service life of the gear unit	190
Nominal input speedn_1N [min^-1]	3100	3300	3300	3500	3700	3500	3700	4000	4300	4300
Maximum input speed n_1Max [min^-1]	7000		8000
Idle torque T₀₁₂ [Nm] Based on the drive	0.43	0.35	0.16	0.13	0.12	0.11	0.1	0.09	0.08	0.08
Torsion and forces
Maximum torsional backlash j_t [arcmin]	Standard ≤ 8		Standard ≤ 10
Maximum torsional rigidity C_t21[arcmin]	12
Maximum axial forceF_2AMax[N] In relation to the shaft center at the output	1900
Maximum breakdown torque M_2Max [Nm]	79
Temperature [°C]
Maximum housing temperature	+ 90
Ambient temperature	-15 to +40
Housing
Properties	Heat-treated steel
Color	Anthracite gray; RAL 7016
Seal	Sealed bearing disks