Motors - Ondrives - (Version JPG) - Page n° 34 - PDF Catalogue | Technical Documentation

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Spline shaft, Knob, Bellow coupling, Slide, Gear-motor

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MOTORS

Brakes & Clutches

Combinorm - Power On

TECHNICAL DATA


Size		01	02	03	05	06	07	08	09	10	11	12
Moments of Inertia J	ROTORS Picture B4, B5, B7, B10	0.025	0.035	0.15	0.375	0.825	2.38	7.25	21.9	67.4	200	450
	B7, B11	0.027	0.038	0.17	0.40	0.9	2.6	8.0	24.0	73.0	220	500
	B8 B10					1.02	30.5	8.76	26.0	82.5	230	520
	ARMATURES Picture B2, B5, B6, B7, B8, B10, B11 a)	0.010	0.045	0.045	0.122	0.366	1.07	3.72	10.6	40.0	115	311
	B2, B5, B6, B7, B10, B11 b)	0.013	0.068	0.068	0.18	0.53	1.57	5.29	15.1	50.1	159	437
	B3 b)					0.82	2.6	10.3	27.0	101
	B4 b)					0.99	2.7	9.12	25.4	88.9	272	814
	HUB INTERMEDIATE RING RUBBER ELEMENT	Picture			B9	0.16	0.49	0.89	3.77	19.9	41.2	118
						1.5	5.0	11.0	30.0	112	253	814
						0.35	1.25	3.3	7.0	50.2	102	450
Switching work, wear	^WR max	0.04	0.05	0.08	0.12	0.19	0.31	0.48	0.75	1.25	2.0	2.9
	W R0.1	0.23	0.30	0.43	0.63	0.95	1.63	2.53	4.09	6.66	10.4	16.3
	PR max Clutch	20.3	28.6	40.6	58.3	80.6	114	161	228	322	458	647
	Pr max brake	12.8	18.6	26.9	38.9	58.3	79.2	114	164	236	339	489
	Xn	0.3	0.45	0.45	0.6	0.7	0.7	0.7	0.9	1.0	1.2	1.2
	X	0.1	0.15	0.15	0.2	0.2	0.2	0.2	0.3	0.3	0.4	0.4
n max		10000	10000	10000	10000	8000	6000	5000	4000	3000	3000	2000


Legend
^WR max	permissible friction per switching operation 10⁴J	Single-face clutches and brakes obtain the torques
W R0.1	friction work up to 0.1mm wear 10⁷J	listed in the table without difficulty after a run-in
^PR max	permissible friction work per second	phase of 100 min-1. In the new state or in case of
Xn	clearance at which an adjustment is recommended mm	substantially higher speed the torque may under
X	rated air gap mm	certain circumstances be smaller.
n	speed

Thermal Load

The dimensioning solely on the basis of the required torque is permissible only in very few cases. When decelerating or accelerating the load and the mass moment of inertia reduced to the shaft, the kinetic energy is converted into heat (friction work). The permissible friction work may not be exceeded.

Dimensioning

Decisive for the dimensioning of the Combinorm are the required torque, thermal load, braking time and service life.

Rated Torque M_2N

To ensure that Combinorm safely works even under extreme conditions, the required torque must be multiplied by a safety factor. The selection of the safety factor depends essentially on the application.

M_2N = M_erf • K K a 2 M_erf = required torque (Nm) Required Torque M_erf

The required torque very often is a mixture of dynamic and static load. Observe sign!

Merf= Ma±Ml M_A = J • a

Rough Definition of the required Torque

If the mass moment of inertia is unknown and the driving power is fixed then the required torque is calculated as follows:

J • n2

M2N

182.5

Slip time t₃ (ms) t₃ = 104.6

M_2N±M_L

J • An • + tu

Service Life in Switching Operations until Readjustment

With the variable Xn the service life can be calculated until the readjustment.

The variable Xn is a recommended value. According to the application it must be checked when the readjustment has to be made.

Merf= 9550 -

(Xn- X) • Wr0.1

0.1 • W_R

ondrives

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M +44 (0)1246 455500 i +44 (0)1246 455522

Product information updated 1st April 2008 and subject to change. Please contact Sales for an accurate price and delivery.

Motors - Ondrives - #34

Spline shaft, Knob, Bellow coupling, Slide, Gear-motor