Mechanical data

Types of construction

The types of construction of the motors are in accordance with DIN EN 60034, part 7, flange design in accordance with DIN 42948.

The desired type of construction must be specified by code digit in position 12 of the order number. In case of code digit "9", the short code must also be specified in accordance with the table below.

Types of construction for motors frame size 100 to 280¹)

Type of construction	12	Short code
IM B3	0
IM B35	6
IM B5 ²)	1
IM V1 ²)	4
IM B6 ³)	9	M1A
IM B7 ³)	9	M1B
IM B8	9	M1C
IM V15	9	M1H
IM V3 ²)	9	M1G
IM V35	9	M1J
IM V5 ³)	9	M1D
IM V6 ³)	9	M1E

1) DC motors of frame size 355 to 630 are offered in the catalog only in the IM B3 type of construction.

2) For type of construction IM B5 the motors are supplied in IM B35, for IM V1 in IM V15 and for IM V3 in IM V35.
1HQ and 1HS motors are only available in type of construction IM B3 and IM B35.

3) For these types of construction, special support feet must be provided for relieving the strain on the fixing bolts in the transverse direction (from frame size 180 upwards).

Cooling type, degree of protection

The cooling types of the motors are in accordance with DIN EN 60034-6 or IEC 60034-6, the degrees of protection in accordance with DIN EN 60034-5 or IEC 60034?5.

For an overview of the cooling types and degrees of protection for standard DC motors refer to section "Overview of cooling types and degrees of protection", page 6.

The degree of protection symbols for motors and terminal boxes specified in the catalog consist of 2 code letters and 2 code digits. These are described below:

IP: International Protection: Code letters designating the degree of protection against contact with live or moving parts inside the enclosure and the ingress of solid bodies and water.

1st digit: Degree of protection against contact with Iive and moving parts and the ingress of solid bodies.

2nd digit: Degree of protection against the ingress of water.

Note:

The higher the 1st and 2nd digit, the higher the degree of protection.

For vertical types of construction the degree of protection IP23 is only granted, if the air inlet point shows downwards.

The short codes for the cooling types of the motors specified in the catalog consist of 2 letters (IC = International Cooling) and a combination of digits and letters. Further details can be found in DIN EN 60034-6.

Cooling, air flow direction

The cooling air is normally fed from commutator end (non-drive end NDE) to the output end (drive end DE), where it discharges through shutter openings or gill-type plates to the left and right. The motor output is reduced by approximately 12 % for motors of frame size up to 160 if one side of the air outlet has to be blocked, the out put is only reduced by 6 % if the duct is on one side (no shutter ribs in this case).

Arrangement of the air inlet or outlet openings on DE and NDE:

Frame size	Air intake and discharge opening on
100 to 160 (1G.5)	2x: on the side, right and left
160 to 200 (1G.6)	3x: on the right, left and top
225 to 630	on all 4 sides

The air flow direction can be changed from the drive end to the non-drive end for 1GG and 1GH motors, short code K64 (refer to Catalog DA 12 · 2004, chapter 3 "Selection and Ordering - Options". De-rating may be necessary in certain cases (refer to the table below).

In many application fields, but especially when machines are operated with weak loading, low cooling air inlet temperature or under difficult ambient conditions, it is recommended to ventilate the machine from DE to NDE.

Refer to Catalog DA 12 · 2004, chapter 3 "Selection and Ordering - Options" for possible duct connections for 1GH motors.

Motor output for air flow direction from the drive end to the non-drive end (the armature circuit code letter is position 10 of the order number):

Motor type 1GF5 . . . 1GG5 . . . 1GH5 . . .	Armature circuit
A	B	C	D	E	F	G	H	J	K	L
%	%	%	%	%	%	%	%	%	%	%
. . . . 102 . . . . 104 . . . . 106 . . . . 108	100 100 100 100	100 100 100 100	100 100 100 90	100 100 100 90	100 100 90 90	100 100 90 100	100 90 100 90	100 90 100 90	100 100 90 100	100 100 90 -	100 90 90 -
. . . . 114 . . . . 116 . . . . 118	100 - -	100 100 100	100 100 100	100 100 100	100 100 100	100 100 100	100 100 100	100 90 100	100 90 90	90 90 90	90 - 90
. . . . 132 . . . . 134 . . . . 136	100 100 -	100 90 100	100 100 100	90 100 100	100 100 90	100 100 90	100 90 90	100 90 90	100 90 90	90 90 90	- 90 -
. . . . 162 . . . . 164 . . . . 166	100 100 100	100 100 100	100 100 100	100 100 100	100 100 100	100 90 100	100 90 100	90 90 100	90 90 100	90 90 100	90 90 100
1GG6 . . . 1GH6 . . . 1HS6 . . .
. . . . 186 . . . . 188	100 100	100 100	100 100	95 95	100 100	90 90	80 80	80 80	– –	– –	– –
. . . . 206 . . . . 208	100 100	100 100	95 95	100 100	90 90	80 80	80 80	80 80	– –	– –	– –
. . . . 226 . . . . 228	100 100	100 100	100 100	100 100	90 90	85 90	85 80	80 75	– –	– –	– –
. . . . 256 . . . . 258	100 100	100 100	100 100	100 100	100 100	90 90	85 85	80 80	– –	– –	– –
. . . . 286 . . . . 288	100 100	100 100	100 100	100 100	95 95	85 85	90 90	90 85	– –	– –	– –

Motor type

1GF5 . . .
1GG5 . . .
1GH5 . . .

Armature circuit

. . . . 102

. . . . 104

. . . . 106

. . . . 108

100

. . . . 114

. . . . 116

. . . . 118

100

. . . . 132

. . . . 134

. . . . 136

100

. . . . 162

. . . . 164

. . . . 166

100

1GG6 . . .
1GH6 . . .
1HS6 . . .

. . . . 186

. . . . 188

100

–

. . . . 206

. . . . 208

100

–

. . . . 226

. . . . 228

100

–

. . . . 256

. . . . 258

100

–

. . . . 286

. . . . 288

100

–

Motor type 1GG7 . . . 1GH7 . . .	Armature circuit
	A	B	C	D	E	F	G	H	J	K	L
	%	%	%	%	%	%	%	%	%	%	%
. . . . 351 . . . . 352 . . . . 353 . . . . 354 . . . . 355	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 100 95	100 100 100 100 90	100 100 95 95 90	95 90 90 90 85	90 85 85 80 80	90 85 80 80 80	– – – – –	– – – – –
. . . . 401 . . . . 402 . . . . 403 . . . . 404 . . . . 405	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 100 95	100 100 100 95 95	95 95 90 90 90	90 90 85 85 80	– – – – –	– – – – –
. . . . 451 . . . . 452 . . . . 453 . . . . 454 . . . . 455	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 100 100	100 100 100 95 95	100 100 95 90 90	100 100 95 90 90	– – – – –	– – – – –
1GG5 . . . 1GH5 . . .
. . . . 500 to . . . . 630				on request

Cooling air flow, pressure head

For the ventilation of 1GH motors the ducts must be dimensioned in such a way that the values for the cooling air flowV and the pressure head ?p in the table below are maintained.

If ducts are mounted on 1GF or 1GG motors, these must be dimensioned in such a way that the permissible pressure head ?p is not exceeded.

For motors 1GF5 . . . 1GG5 . . . 1GH5 . . .	Cooling air flowV	Permissible pressure drop ?p in the ducts for motors 1GF, 1GG	Required pressure head ?p for motors 1GH
For motors 1GF5 . . . 1GG5 . . . 1GH5 . . .	m³/s	Pa	Pa
. . . . 102 . . . . 104 to 108	0.045 0.06	40 45	300 500
. . . . 114 and 116 . . . . 118	0.07 0.08	45 70	500 650
. . . . 132 to 136	0.09	45	500
. . . . 162 to 166	0.2	60	700
1GF6 . . . 1GG6 . . . 1GH6 . . .
. . . . 160	0.20	60	1300
. . . . 180	0.30	70	1350
. . . . 200	0.35	70	1250
. . . . 225	0.50	80	1600
. . . . 250	0.60	80	1500
. . . . 280	0.75	80	1600
1GG7 . . . 1GH7 . . .
. . . . 351 . . . . 352 . . . . 353 . . . . 354 . . . . 355	1.3	100	1800 1900 2000 2300 2500
. . . . 401 . . . . 402 . . . . 403 . . . . 404 . . . . 405	1.6	100	1800 1900 2100 2200 2500
. . . . 451 . . . . 452 . . . . 453 . . . . 454 . . . . 455	2.0	100	1700 1800 2000 2200 2400
1GG5 . . . 1GH5 . . .
. . . . 500 . . . . 630	2.0 3.0	70 70	1400 1350

Air-to-water and air-to-air coolers

Motors with air-to-water cooler (1HS) are ventilated by means of a fan unit with a three-phase motor mounted in the cooler assembly. The heated internal air is recooled via a water cooler. With a cooling water inlet temperature of 25 °C 1HS motors have the same output as 1GH motors.

The standard water connections (as viewed from the drive end) are located on the right. For 1HS6 186 to 288 and 1HS7 351 to 455 a subsequent changeover of the cooler for water connections on the left is only possible for special design water coolers.

Motors 1HS5 500 to 635 are equipped with coolers with removable water boxes. In this case a later relocation of the cooler is also possible.

Normal cooling water temperature rise up to 10 K, water pressure up to 6 bar (test pressure 9 bar).

If you feel uncertain about the required cooling types, please inquire a cooler with water analysis.

Standard version:

Coolers with copper tubes and copper collectors (not removable) for non-aggressive water which has been cleaned to remove any solid particles. Vibration stress up to 0.6 g (63 Hz).

Special design (short code M10):

Coolers with CuNi10Fe tubes, CuZn38SnAl tube sheets and removable plastic-coated steel chambers for water with a pH value of between 5 and 9 and a maximum chloride content of 25 g/l.

The cooling tubes can be cleaned mechanically.

Motors of frame size 250 to 630 can be provided with a filter in the internal air circuit.

Air-to-water cooler data:

	Water volumetric flow required	Pressure drop in cooling element
Motor type	l/min	m³/h	bar
1HS6 186 1HS6 188 1HS6 206 1HS6 208 1HS6 226 1HS6 228 1HS6 256 1HS6 258 1HS6 286 1HS6 288	39 42 45 50 58 63 75 80 95 100	2.3 2.5 2.7 3.0 3.5 3.8 4.5 4.8 5.7 6.0	0.1 0.1 0.1 0.12 0.15 0.18 0.15 0.18 0.22 0.24
1HS7 35. 1HS7 40. 1HS7 45.	95 110 125	5.7 6.6 7.5	0.13 0.2 0.26
1HS5 50. 1HS5 631 1HS5 632 1HS5 633 1HS5 634 1HS5 635	115 150 150 150 150 160	6.9 9.0 9.0 9.0 9.0 9.6	0.3 0.37 0.37 0.37 0.37 0.43

Water volumetric flow required

Pressure drop in cooling element

Motor type

l/min

m³/h

bar

1HS6 186
1HS6 188

1HS6 206
1HS6 208

1HS6 226
1HS6 228

1HS6 256
1HS6 258

1HS6 286
1HS6 288

39
42

45
50

58
63

75
80

95
100

2.3
2.5

2.7
3.0

3.5
3.8

4.5
4.8

5.7
6.0

0.1
0.1

0.1
0.12

0.15
0.18

0.22
0.24

1HS7 35.

1HS7 40.

1HS7 45.

110

125

5.7

6.6

7.5

0.13

0.2

0.26

1HS5 50.

1HS5 631
1HS5 632
1HS5 633
1HS5 634
1HS5 635

115

150
150
150
150
160

6.9

9.0
9.0
9.0
9.0
9.6

0.3

0.37
0.37
0.37
0.37
0.43

Motors with air-to-air cooler (1HQ) are ventilated by means of two fan units with a three-phase motor mounted in the cooler assembly. The recooling of the heated internal air takes place via an air-/air-heat exchanger. The fan unit for the internal air circuit is mounted axially, the fan unit for the external air circuit is mounted on top of the cooler. 1HQ motors have an output of approximately 70 % of 1GH motors.

Fan units

1GF, 1GG, 1HQ and 1HS motors have built-on fan units with three-phase motor, supply voltage 380 to 420 V AC, 50 Hz or 380 to 500 V.

For operation at 60 Hz with motors from frame size 250, a plain text indication in the order is necessary.

The specific data of fan motors can be taken from the following tables.

Assignment table of the fan motors:

Motor type	Fan motor	I _max at 50 Hz	I _max at 60 Hz
Motor type	Fan motor	A	A
1GG5 102 to 108	2CW5355-0	0.3	0.28
1GG5 114 to 116	2CW5355-0	0.3	0.28
1GG5 118	2CW5366-1	0.9	0.63
1GG5 132 to 136	2CW5366-1	0.9	0.63
1GG5 162 to 166	2CW5367-1	0.88	0.97
1GF5 114 to 116	2CW5355-0	0.3	0.28
1GF5 132 to 136	2CW5366-1	0.9	0.63
1GF5 162 to 166	2CW5367-1	0.88	0.97
1GG6 162 to 166	2CW5307-7	2.5	2.2

The fan units are designed as follows:

Wide range winding 380 V to 500 V Y
Cooling medium temperature 40 °C
Type of construction IM B14
2-pole

Motor circuit breakers have to be adjusted to the specified maximum currents.

Motor type	Three-phase fan motor	Rated voltage	Connection	Frequency	Rated output	Rated current
	Size	V		Hz	kW	A
1GG6 182 to 184	80	400	Y	50	1.1	2.5
		460	Y	60	1.2	2.4
1GG6 186 to 222	90 S	400	Y	50	1.5	3.5
		460	Y	60	1.7	3.4
1GG6 226 to 288	100 L	400	Y	50	3	6.3
		460	Y	60	3.4	6
1GG7 351 to 455	132 S	400	?	50	7.5	14.7
		460	?	60	8.6	14.2
1GG5 500 to 635	132 S (2 x)	400	?	50	7.5	14.5
		460	?	60	8.6	14

1HS6 186 to 208	90 S	400	Y	50	1.5	3.5
		460	Y	60	1.7	3.4
1HS6 222 to 288	100 L	400	Y	50	3	6.3
		460	Y	60	3.4	6
1HS7 351 to 455	132 S	400	?	50	7.5	14.7
		460	?	60	8.6	14.2
1HS5 500 to 635	132 S (2 x)	400	?	50	7.5	14.5
		460	?	60	8.6	14
Internal air
1HQ6 186 to 208	90 S	400	Y	50	1.5	3.5
		460	Y	60	1.7	3.4
1HQ6 222 to 288	100 L	400	Y	50	3	6.3
		460	Y	60	3.4	6
1HQ7 351 to 455	132 S	400	?	50	7.5	14.7
		460	?	60	8.6	14.2
1HQ5 500 to 635	132 S (2 x)	400	?	50	7.5	14.7
		460	?	60	8.6	14.2
External air
1HQ6 186 to 208	80	400	Y	50	0.75	1.73
	2-pole	460	Y	60	0.86
1HQ6 226 to 288	90 S	400	Y	50	1.5	3.25
	2-pole	460	Y	60	1.75	3.1
1HQ7 351 to 455	100 L	400	Y	50	2	4.7
	4-pole	460	Y	60	2.55
1HQ5 500 to 504	100 L	400	?	50	3	6.4
	4-pole	460	?	60	3.45
1HQ5 631 to 635	112 M	400	?	50	4	8.2
	4-pole	460	?	60	4.6

The fan motors are designed as follows:

Type of construction B5
Degree of protection IP55
Insulation class F
Cooling medium temperature 55 °C
Voltage tolerance ±10 %
Rating plate with 50 and 60 Hz data

Three-phase terminals of fan motors

All fan motors are equipped with a plastic terminal box which is mounted on the fan motor. The terminal box is freely accessible.

Each terminal box has 6 terminals. Threaded holes with metric threads are provided for cable entries according to the table below.

For motors up to a frame size of 160 loose adapter pieces for metric threads according to PG threads are enclosed in the terminal boxes. Only plastic hubs can be used.

Assignment of the entry drillings of the fan motor terminal boxes:

For Motor type	Cable gland	Max. conductor cross-section mm²
1GG5 102 to 116	1x M16 x 1.5 and 1x M25 x 1.5	1.5
1GG5 118 to 166	1x M16 x 1.5 and 1x M25 x 1.5	2.5
1GF5 114 and 116	1x M16 x 1.5 and 1x M25 x 1.5	1.5
1GF5 132 ro 166	1x M16 x 1.5 and 1x M25 x 1.5	2.5
1GG6 162 to 166	1x M16 x 1.5 and 1x M25 x 1.5	2.5
1GG6 186 to 208	2x M25 x 1.5	2.5
1GG6 226 to 288	2x M25 x 1.5	4
1GG7 351 to 455	2x M32 x 1.5	6
1GG5 500 to 635	2x M32 x 1.5	6

	Internal air circuit		External air circuit (1HQ motors only)
	Cable gland	Max. conductor cross-section	Cable gland	Max. conductor cross-section
For Motor type	Cable gland	mm²	Cable gland	mm²
1HQ6 186 to 208	2x M25 x 1.5	2.5	2x M25 x 1.5	2.5
226 to 288	2x M25 x 1.5	4	2x M25 x 1.5	2.5
1HQ7 351 to 455	2x M32 x 1.5	6	2x M25 x 1.5	4
1HQ5 500 to 633	2x M32 x 1.5	6	2x M25 x 1.5	4
1HS6 186 to 208	2x M25 x 1.5	2.5	–	–
226 to 288	2x M25 x 1.5	4	–	–
1HS7 351 to 455	2x M32 x 1.5	6	–	–
1HS5 500 to 633	2x M32 x 1.5	6	–	–

Filter and silencer mounting

Air filter

If the installation place of the motors supplies only cooling air with unsufficient percentage of purity, the mounting of a filter is necessary.

If in the case of very high percentage of dust at the location of use the effect of the filter is not sufficient or if the maintenance intervals for the filters are too short, it is recommended to use a surface-cooled motor in degree of protection IP54 or a with a duct connection separately cooled motor of the 1GH type in degree of protection IP54/IC37.

A dry-type filter can be mounted on all 1GF and 1GG motors (refer to Catalog DA 12 · 2004, chapter 3 "Selection and ordering - Options"). The filter is mounted axially in front of the fan intake.

Filters can also be retrofitted. Derating is not required.

The filtration efficiency is 99 % for a dust particle size of 10 µm. The efficiency decreases for smaller particle sizes.

The noise levels are reduced by 1 to 2 dB for motor frame sizes from 160 to 280 if a filter is mounted.

Silencer

For 1GG motors from frame size 180 a silencer can be mounted on the air inlet of the separate fan. Thereby the sound pressure levelL_pA of the 1GG motors can be reduced by approximately 5 dB.

The mounting of a silencer is also possible in combination with an air filter.

Noise levels

The sound-pressure levelsL_pA and the sound power levelL_WA (including tolerance) specified in the table below apply at full load up to 2000 RPM for B6C converter connection and standard separate fan unit at 50 Hz

The values forL_pA andL_WA are significantly lower than the values permitted in accordance with EN 60034-9.

	Measuring-surface sound-pressure level L_pA		A-sound power level L_WA
For Motors	dB(A)		dB(A)
1GF5 . . . 1GG5 . . . 1GH5 . . .
. . . . 100 . . . . 112 . . . . 132 . . . . 160	68 68 71 74		80 80 83 86

1H.5 . . .	1HC5	1HA5	1HC5	1HA5
. . . . 100 . . . . 112 . . . . 132 . . . . 160	55 62 63 64	– – – 77	67 74 75 76	– – – 89

1GF6 . . . 1GG6 . . . 1GH6 . . .
. . . . 160	73		86

1G.6 . . . 1H.6 . . .	1GH6 and 1HS6	1GG6 and 1HQ6	1GH6 and 1HS6	1GG6 and 1HQ6
. . . . 180 . . . . 200 . . . . 225 . . . . 250 . . . . 280	72 73 76 78 80	76 77 80 82 84	85 87 90 93 95	90 91 94 97 99

The sound power levelL_WA is the sum of the measuring-surface level and measuring-surface sound-pressure levelL_pA.

A motor noise no-load/load differential of 3 to 5 dB can be assumed when making comparisons with the standard. The no-load noise levels, when fed from pure DC, are approximately 3 dB below the noise values for converter supply.

When using a silencer the specified noise levels can be reduced by approx. 5 dB.

Bearings

Motors up to and including frame size 200 have pre-lubricated rolling contact bearings. Larger motors have regreasable rolling contact bearings.

The original grease charge of the pre-lubricated bearings normally lasts for two years, after which time it must be replaced.

Motors with regreasable bearings can be re-lubricated while the motor is running.

For extreme conditions, e.g. high cooling temperatures (exceeding 60°C), motors, frame sizes 112 to 200, normally fitted with pre-lubricated bearings, can be supplied with regreasable bearings (refer to Catalog DA 12 · 2004, chapter 3 "Selection and Ordering - Options").

A locating bearing is used at the drive end and a floating bearing at the non-drive end of motors up to frame size 132. For motors, frame size 180 and upwards, the non-drive end has a locating bearing and the drive end a floating bearing.

1G.5/1H.5 motors, frame size 160, are fitted with a locating bearing at the drive end, 1G.6 motors, frame size 160, at the non-drive end.

Depending on the degree of protection or the arrangement of the bearings, the bearings are sealed using grease-packed grooves and/or axial shaft sealing rings or INA ring disks or sealing disks (RS bearings) preventing the ingress of dust.

For motors, frame size up to 280, the bearings can accept the weight of the rotor including that of the coupling half if the motor is mounted in an inclined or vertical position.

Please inquire if the motor is to be subject to higher axial loading and for motors with frame size from 355 upwards.

Refer to the table below for the bearing assignments.

The bearing assignments are valid for motors with all types of construction and vibration severity grades N and R.

Bearing assignment	Deep-groove ball bearings in accordance with DIN 625
Motortyp	Cylindrical roller bearing in accordance with DIN 5412
	Drive end bearing		Non-drive end bearing
1G.5 . . . 1H.5 . . .	Standard version	Double-bearing design ⁴) (short code K20)	Standard version	Ausfuhrung fur Nachschmiereinrichtung (Kurzangabe K40)
. . . . 102 . . . . 104 . . . . 106 . . . . 108	6206-C3	NU 2206 E+ 6206-C3	6205-RSJ-C3 additional INA outer sealing ring G25 x 35 x 4	–
. . . . 112 . . . . 114 . . . . 116 . . . . 118	6208-C3	NU 208 E+ 6208-C3	6206-RSJ-C3 additional INA outer sealing ring G30 x 37 x 4	6206-C3
. . . . 132 . . . . 134 . . . . 136	6309-C3	NU 309 E ⁵)+ 6309-C3	6208-RSJ-C3 additional INA outer sealing ring G40 x 47 x 4	6208-C3
. . . . 162 . . . . 164 . . . . 166	6212-C3	NU 312 E ⁵)+ 6312-C3	6309-RSJ-C3 additional INA outer sealing ring G45 x 55 x 4	6309-C3

4) Not available for 1GA5/1HA5 motors.

5) With special bearing according to factory information (with restricted air intake).

Motor type 1G.6 . . . 1H.6 . . .	Standard version		Bearing for high cantilever force	Special design bearing for extremely high cantilever forces
Motor type 1G.6 . . . 1H.6 . . .	Drive end bearing	Non-drive end bearing		Drive end bearing	Non-drive end bearing
. . . . 160 . . . . 180 . . . . 200 . . . . 225 . . . . 250 . . . . 280	6213?RSJC3 6214ZC3 6215ZC3 6217C3 6219C3 6220C3	6213?RSJC3 6214ZC3 6215ZC3 6217C3 6219C3 6220C3	NU 213E ⁶) NU 214E NU 215E NU 217E NU 219E NU 220E	- NU 314E NU 315E NU 317E NU 319E NU 320E	- 7213 BG 7214 BG 7216 BG 7218 BG 7219 BG
1G.7 . . . 1H.7 . . .
. . . . 355 . . . . 400 . . . . 450	6226 C3 6230 C3 6234 C3	6226 C3 6230 C3 6234 C3	– – –	– – –	– – –
1G.5 . . . 1H.5 . . .
. . . . 500 . . . . 501 . . . . 502 . . . . 503 . . . . 504 . . . . 631 . . . . 632 . . . . 633 . . . . 634 . . . . 635	NU 230 NU 230 NU 232 NU 234 NU 234 NU 234 NU 236 NU 240 NU 240 NU 244	NU 226 + 6226 C3 NU 226 + 6226 C3 NU 226 + 6226 C3 NU 228 + 6228 C3 NU 228 + 6228 C3 NU 230 + 6230 C3 NU 230 + 6230 C3 NU 236 + 6236 C3 NU 236 + 6236 C3 NU 236 + 6236 C3	– – – – – – – – – –	– – – – – – – – – –	– – – – – – – – – –

6) With restricted radial air intake according to factory information.

Permissible cantilever forces

When using power transmission elements, which result in cantilever forces of the shaft end (belt drive or direct mounting on gears), it has to be taken care that the limits specified in the cantilever force diagrams aren`t exceeded. Possibly it is necessary to use a cylindrical roller bearing at the drive end (short code K20, refer to Catalog DA 12 · 2004, chapter 3 "Selection and Ordering - Options").

The permissible cantilever forces for motors, frame size up to 450 are specified in the following cantilever force diagrams. For motors with frame size 355 to 450 it is assumed that no cantilever forces appear, as the output takes place via a coupling. In this case cantilever force diagrams only exist for bearing increased cantilever forces.

The cantilever force diagrams are only applicable for standard drive shaft ends. The permissible cantilever forces for non-drive shaft ends and non-standard drive shaft ends the permissible cantilever forces must be determined for each particular case (please inquire).

The dimension x specified in the cantilever force diagrams is the distance between the line of action of the force FQ and the shaft shoulder. The dimension xmax corresponds to the length l of the shaft end.

The permissible cantilever forces for radial loading at the drive shaft end are specified in the following cantilever force diagrams (based on a normal bearing service life of 20 000 hours)

Cantilever force diagrams - Standard bearing design

Motors 1G.5/1H.5 102 to 1G.5/1H.5 108

Motors 1G.5 112

Motors 1G.5/1H.5 114 to 1G.5/1H.5 118

Motors 1G.5/1H.5 132 to 1G.5/1H.5 136

Motors 1G.5/1H.5 162 to 1G.5/1H.5 166

Cantilever force diagrams - Double-bearing design

Motors 1G.5 102 to 1G.5 108

Motors 1G.5 114 and 116

Motors 1G.5 118

Motors 1G.5 132 to 1G.5 136

Motors 1G.5 162 to 1G.5 166

Cantilever force diagrams - Standard bearing design

Motors 1G.6 16.

Motors 1G.6/1H.6 186/188

Motors 1G.6/1H.6 206/208

Motors 1G.6/1H.6 226/228

Motors 1G.6/1H.6 256/258

Motors 1G.6/1H.6 286/288

Cantilever force diagrams - Heavy-duty bearings for high cantilever forces

The roller bearings used here may be damaged under no-load conditions. Observe the minimum cantilever forces.

Minimum cantilever force 1.2 kN Motors 1G.6 16.

Minimum cantilever force 4 kN Motors 1G.6/1H.6 186/188

Minimum cantilever force 4.5 kN Motors 1G.6/1H.6 206/208

Minimum cantilever force 6 kN Motors 1G.6/1H.6 226/228

Minimum cantilever force 7.5 kN Motors 1G.6/1H.6 256/258

Minimum cantilever force 9 kN Motors 1G.6/1H.6 286/288

Minimum cantilever force 11 kN Motors 1G.7/1H.7 351/352

Minimum cantilever force 11 kN Motors 1G.7/1H.7 353/354/355

Minimum cantilever force 14.5 kN Motors 1G.7/1H.7 401/402/403

Minimum cantilever force 16.5 kN Motors 1G.7/1H.7 404/405

Minimum cantilever force 14.5 kN Motors 1G.7/1H.7 451/452/453/454/455

Cantilever force diagrams - Special design bearings for extremely high cantilever forces

Minimum cantilever force 6 kN Motors 1G.6/1H.6 186 and 188

Minimum cantilever force 7 kN Motors 1G.6/1H.6 206 and 208

Minimum cantilever force 9 kN Motors 1G.6/1H.6 226 and 228

Minimum cantilever force 10.5 kN Motors 1G.6/1H.6 256 and 258

Minimum cantilever force 12.5 kN Motors 1G.6/1H.6 286 and 288

Motors 1G.6/1H.6 with special design bearings for extremely high cantilever forces are longer.

Frame size	Dimension k mm
180/200	+30
225/250/280	+40

Shaft ends

Shaft ends conform to DIN 748, part 3 and the centring holes (60°) to DIN 332, part 2.

The keyways are machined in accordance with DIN 6885, sheet 1. Shaft keys are always supplied with the motors.

All shaft ends have an undercut, whereby the design for motors from frame sizes 180 upwards is in accordance with form E in accordance with DIN 509.

If required, motors can also be supplied with a non-standard shaft end in accordance with the table below (refer to Catalog DA 12 · 2004, chapter 3 "Selection and Ordering - Options"). The permissible stressing depends on the desired dimensions.

A second shaft end can be provided for motors (except for 1GF motors) provided that no accessories are axially mounted. The non-drive shaft end is only suitable for flexible coupling outputs.

With the exception of 1GF motors, the shaft is accessible or can be made accessible at the non-drive end for speed measurement purposes.

	Shaft end diameter		Length
Frame size	Larger than standard	Smaller than standard	Longer than standard	Shorter than standard
100 to 160	no	yes	no	yes
180 and upwards	no	yes	yes ⁷)	yes

7) Up to approx. double the length.

Mechanical performance, vibrations

All motors are equipped with low-noise and low-vibration rolling-contact bearings. All of the motors in Catalog DA 12 · 2004 fulfill vibration severity grade N.

Refer to the table below for recommended maximum vibration severity grades for electric motors in accordance with DIN EN 60034-14 (up to 3600 RPM) and factory specifications.

There are no design restrictions for vibration severity grade R.

For flange-mounted motors, frame sizes 100 to 160 with vibration severity grades S, the reduced tolerances for the mounting flange (permissible positional variances for the shaft end) are maintained in accordance with DIN 42955. If these reduced tolerances are also to be maintained for flange-mounted motors, vibration severity grade R, these motors must be ordered with high-precision flanges grade R in accordance with DIN 42955.

From frame size 180 the vibration severity grade S is only practicable with deep groove ball bearing at the drive end and with horizontal foot-mounted types. From frame size 355 vibration severity grade S on request.

		For frame sizes
		100 to 132	160	180 to 225	250 to 400
	Speed range	Max. vibration velocity valuesV_rms (permissible deviation +10 %) in the frequency range 10 to 1000 Hz
Vibration severity grade	RPM	mm/s	mm/s	mm/s	mm/s
N (standard)	600 to 3600 >3600 to 4500 >4500 to 6300	1.8 2.25 3.0	2.8 3.5 –	2.8 4.5 –	4.5 – –
R (reduced)	600 to 1800 >1800 to 3600 >3600 to 4500 >4500 to 6300 >6300 to 9000	0.71 1.12 1.4 1.87 2.8	1.12 1.8 2.25 – –	1.12 1.8 2.8 – –	1.8 2.8 – – –
S (non-standard)	600 to 1800 >1800 to 3600 >3600 to 4500 >4500 to 6300 >6300 to 9000	0.45 0.71 0.89 1.18 1.8	0.71 1.12 1.4 – –	0.71 1.12 1.8 – –	1.12 1.8 – – –
SR (please inquire) (with vibration severity grade values S divided by 1.6)	600 to 1800 >1800 to 3600 >3600 to 4500 >4500 to 6300 >6300 to 9000	0.28 0.45 0.56 0.75 ⁸) 1.12 ⁸)	0.45 0.71 0.89 – –	– – – – –	– – – – –

8) Not for 1G.5 108/1HC5 108.

Permissible vibration levels from external sources

The system vibration characteristics as a result of the mechanical drive output elements, alignment and mounting, as well as the influence of external vibrations can result in higher motor vibration values. The motor vibration values specified in the table below should not be exceeded with a view to perfect commutation, low brush wear and long bearing service life.

In certain cases, it may be necessary to completely balance the motor with the mechanical output drive elements.

Vibration frequency		Vibration values
Hz		Frame size up to 160	from 180
<6.3	Vibration displacement s (mm)	?0.16	?0.25
6.3 to 63	Vibration velocity V_eff (mm/s)	?4.5	?7.1
>63	Vibration acceleration a (m/s2)	?2.55	?4.0

Balancing

The rotors of 1G.5/1H.5 and 1G.6/1H.6 motors are dynamically balanced with complete fitted key (full-key balancing).

The rotors of 1G.7/1H.7 motors are balanced with half key (half-key balancing).

This should be taken into account when balancing the drive elements.

Foundation

The systems engineer has to assure a resonance-free mounting of the motor.

For the design of the foundation DIN 4024, part 2 has to be observed.

Terminal boxes

All motors have a terminal box for connecting the main DC supply. As standard for all motors the terminal box is mounted on the right side when viewing on the drive side shaft end. If required, it can also be located on top (except for motors with top-mounted coolers) or on the left-hand side. For horizontal types of construction and terminal boxes on the right, the cable entry is at the bottom. The terminal box can be subsequently rotated through 90°. All terminal boxes have degree of protection IP55.

DC terminals

The terminal box (refer to table below) has 2 field winding terminals and 2 armature terminals as well as additional terminals for PTC thermistor sensors, space heaters or similar.

Labelled terminals are available for connecting the protective conductor. For motors, frame size from 180 upwards (and 1G.6 16.), an additional external protective conductor on the outer side of the motor is available (for cross-sections refer to table "Conductor sizes and cable entries“).

Main supply conductors

The dimensions of the main supply conductors have to be in accordance with DIN VDE 0298. The amount of the necessary parallel supplies is determined by

the maximal connectable conductor cross section
the cable type
the cable laying
the ambient temperature and
the permissible current in accordance with DIN VDE 0298.

Cable entries

Depending on the motor size various terminal box versions are used. Terminal boxes with cable entry drillings are closed by sealing plugs.

Terminal boxes of larger motors have a cable entry plate which is normally supplied undrilled. It can be unscrewed from the terminal box for drilling (for details refer to table "Conductor sizes and cable entries“).

Assignment of the terminal boxes:

For motor	Terminal box (max. permissible terminal current)
frame size	gk 230 (36 A)	gk 330 (59 A)	gk 420 (77 A)	gk 427 (105 A)	gk 527 (239 A)	gk 602 (268 A)	1XB7 540 (360 A)	1XB7 700 (600 A)	1XB7 710 (1200 A)	1XB7 942 (2500 A)	1XB7 720 (2000 A)
102 to 108	•	–	–	–	–	–	–	–	–	–	–
112 to 116	–	•	–	–	–	–	–	–	–	–	–
132 to 136	–	•	•	•	•	–	–	–	–	–	–
160 (1G.5)	–	–	•	•	•	–	–	–	–	–	–
160 (1G.6)	–	–	–	–	–	•	–	–	–	–	–
182 to 184	–	–	–	–	–	–	•	–	–	–	–
186 to 188	–	–	–	–	–	–	–	•	–	–	–
202 to 204	–	–	–	–	–	–	•	–	–	–	–
206 to 208	–	–	–	–	–	–	–	•	–	–	–
222 to 224	–	–	–	–	–	–	–	•	–	–	–
226 to 288	–	–	–	–	–	–	–	–	•	–	–
351 to 455	–	–	–	–	–	–	–	–	–	–	•
501 to 635	–	–	–	–	–	–	–	–	•	•	–

Conductor sizes and cable entries:

Terminal box Type	Max. permissible rated current	Connecting thread for field current	Connecting thread for armature current	Max. conductor cross-section per terminal	Max. protective conductor cross-section	Max No. of cable entries	Max. external protective conductor cross-section	Cable entry plate
	A			mm²	mm²		mm²
gk 230	36	M4	M4	6	6	2 x Pg 21		Sealing plugs
gk 330	59	M5	M5	16	16	2 x Pg 29		Sealing plugs
gk 420	77	M5	M5	25	25	2 x Pg 29		Sealing plugs
gk 427	105	M4	M10	35	35	2 x Pg 29 and 2 x Pg 21		Sealing plugs
gk 527	239	M4	M10	150	150	2 x Pg 29 and 2 x Pg 16		undrilled
gk 602	268	M4	M10	185	185	3 x Pg 29 + 2 x Pg 16	185	undrilled
1XB7 540	360	M5	M16	185	2 x 70	2 x M36 x 2 + 2 x M18 x 1.5	2 x 240	undrilled
1XB7 700	600	M6	M16	2 x 240	2 x 240	8 x M36 x 2 + 4 x M24 x 1.5	2 x 240	undrilled
1XB7 710	1200	M6	M16	4 x 240	2 x 240	10 x M45 x 2 + 4 x M24 x 1.5	2 x 240	undrilled
1XB7 720	2000	M6	M16	6 x 240	6 x 240	18 x M40 x 1.5 + 5 x M20 x 1.5	6 x 240	undrilled
1XB7 942	2500	M6	M16	9 x 240	4 x 300	20 x M50 x 1.5 + 4 x M32 x 1.5	2 x 240	undrilled

Terminal designations of DC motors

The terminal designation of DC motors is in accordance with DIN EN 60034-8.

For fixing the rotational direction in relation to the armature current and the field direction, applies the rule that on operation of a DC motor in clockwise rotation the polarity of currents L+ and L- corresponds to the polarity of connections A1 and A2, as well as to connections F1 and F2.

For counter-clockwise direction the polarity of the supplies has to be changed either to the armature or the excitation field.

	Motor winding or winding type or conductors in the DC supply system	Terminal designations to DIN EN 60034-8
DC motors	Armature winding Interpole winding Compensating winding	A1 – A2 B1 – B2 C1 – C2
	Symmetrically-split interpole winding	B1 – B2 B3 – B4
	Field winding (series)	D1 – D2
	Field winding (shunt)	E1 – E2
	Field winding (separate field)	F1 – F2
	Field winding (separate field) – split or several separate windings	F1 – F2 F3 – F4 F5 – F6
DC supply system	Positive conductor Negative conductor Middle conductor	L+ L– M

Designation of auxiliary terminal boxes

The designation of the auxiliary terminal boxes is made by using the designation of the supplementary device in connection with:

a pre-set digit, characterizing the respective circle or unit,
a post-set digit, characterizing the function of the conductor.

Example of a thermistor sensor with a positive temperature coefficient

BA	AC Brake
BD	DC Brake
BW	Brushwear detector
HE	Heater
R	Resistance thermometer
TP	Thermistor with positive temperature coefficient

int finish

The standard colour is grey in accordance with RAL 7016.

The paint finish can be carried out as standard or non-standard paint finish. Refer to the table below for the structure.

All colours deviating from the standard must be ordered using the short code Y53 for standard paint finish or Y54 for non-standard paint finish. The desired colour must be specified in plain text (RAL ….).

Additional measures regarding insulation and surface protection are necessary (additional charge) if the motors are subject to chemically aggressive gases as encountered, for example, in bleaching plants in the textile industry.

Version with	Suitable for climate classification in accordance with IEC Publication 721-2-1	Resistance to heat	Structure of primer for cast iron, steel and sheet steel components	Final coat
Standard paint finish	Moderate (extended) for inside and outside		As for final coat	Up to frame size 160: Epoxy base From frame size 180: Alkyd resin base
	Briefly: up to 100 % relative humidity for temperatures up to +30 °C Continuously: up to 85 % relative humidity for temperatures up to +25 °C	Briefly: +120 °C Continuously: +100 °C
Special paint finish	Worldwide (global) for use outdoors		As for final coat	Up to frame size 160: Epoxy base (2 layers), From frame size 180: Polyurethane base (2 layers)
	Briefly: up to 100 % relative humidity for temperatures up to +35 °C Continuously: up to 98 % relative humidity for temperatures up to +30 °C Additionally: for aggressive ambient conditions with up to 1 % acid and alkaline concentrations or continuous moisture in sheltered areas	Briefly: +140 °C Continuously: +120 °C