T E C H N I C A L C A T A L O G
MG02 - MGE02
STEERABLE WHEEL MOTORS
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Steerable wheel motors MG02 - MGE02 POCLAIN HYDRAULICS
Methodology :
This document is intended for manufacturers of machines that incorporate Poclain Hydraulics products. It describes the technical characteristics
of Poclain Hydraulics products and specifies installation conditions that will ensure optimum operation.
This document includes important comments concerning safety. They are indicated in the following way:
This document also includes essential operating instructions for the product and general information. These are indicated in the following way:
The views in this document are created using metric standards.
The dimensional data is given in mm and in inches (inches are between brackets and italic)
Safety comment.
Essential instructions.
General information .
Information on the model number.Information on the
model code.
Weight of component without oil.
Volume of oil.
Units.
Tightening torque.
Screws.
Information intended for Poclain-Hydraulics personnel.
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Motor inertia
= 0.01 kg.m²
Noise emissions = 60 dBA
8
172 [10,5] 86 [5,2] 273 [139] 390* 409* 510*
0
213 [13,0] 107 [6,5] 339 [172] 310* 330* 410
1
235 [14,3] 118 [7,2] 374 [190] 285* 299* 372*
2
255 [15,6] 128 [7,8] 405 [206] 260* 276* 343*
0
332 [20,2] 166 [10,1] 528 [268] 200 250 275
1
364 [22,2] 182 [11,1] 579 [294] 182 228 250
2
398 [24,3] 199 [12,1] 633 [322] 165 208 230
86 [5,2] 276*
128 [7,8] 276*
85 [5,2] 330*
107 [6,5] 330*
133 [8,1] 208
199 [12,1] 208
16,5 [22]
9 [12]
11
12 [16]
16,5 [22]
9 [12]
11 [15]
450 [6 527]
[5 802]
450 [6 527]
400 [5 802]22 [30]
230 400[15]
260*
310*
165
12 [16]
N
A
213 [13,0]
192
332
[11,7]
[20,2]
A
[172]339
18 [24]
343*
410*[155]
[268]
305
528 22 [30]
18 [24]
Cams with equal lobesCams with unequal lobes
MG02MGE02MG02MGE02
Theoretical
torque
at 100 bar at 1000 PSI
Nm [lb.ft]
Max.
pressure
bar [PSI]
Max.power
kW [HP]
cm³/tr [cu.in/rev.]cm³/tr [cu.in/rev.]
preferred
kW [HP]
non-preferred
kW [HP]
First displacement
Second displacement
* See option ’’M’’ for higher speed.
Max.speed
tr/min [RPM]tr/min[RPM]
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
CONTENT
Brake Model codeCharacteristics Options
MODEL CODE 6
CHARACTERISTICS 8
Dimensions for 1-displacement motor without brake 8
Dimensions for 1-displacement motor with brake 9
Dimensions for 2-displacement motor with brake 10
Load curves 11
Efficiency 12
Chassis mounting 13
Greaser 13
Steering attachment 14
Steering angle and steering stop 14
Hydraulic connections 15
BRAKES 17
Rear brake 17
OPTIONS 19
Steerable wheel motors MG02 - MGE02 POCLAIN HYDRAULICS
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MODEL
8
172 [10,5] 86 [5,2]
0
213 [13,0] 107 [6,5]
1
235 [14,3] 118 [7,2]
2
255 [15,6] 128 [7,8]
0
332 [20,2] 166 [10,1]
1
364 [22,2] 182 [11,1]
2
398 [24,3] 199 [12,1]
86 [5,2]
128 [7,8]
86 [5,2]
107 [6,5]
133 [8,1]
199 [12,1]
A
N
A
213 [13,0]
192
332
[11,7]
[20,2]
Cams with equal lobesCams with unequal lobes
MG02
MG02MGE02
MGE02
cm³/tr [cu.in/rev.]cm³/tr [cu.in/rev.]
02
1
G
1
C
12
D
3
M 02G E
M
Integrated flushing valve
Without
1
First displacement
Second displacement
Connections
ISO 11926-1
A
ISO 1179-1
3
ISO 9974-1
4
Valving type
1 displacement
1
2 displacement
Clockwise
Ratio 2
D
Ratio <2
E
Ratio >2
F
Counterclockwise
Ratio 2
G
Ratio <2
H
Ratio >2
J
MODEL CODE
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
CODE
0
12
F
3
B
0EJ
12
P
34 12
S
3456
Rear brake
Without Standard end plate
R
With Brake F03
W
Connection orientation
Orientation -90
1
Orientation +90
2
Bearing support
5 x Ø18 on Ø140
1
10 x M12 on Ø100
2
5 x Ø18 on Ø120
7
Shaft
Without studs
1
With studs + nuts
2
With studs
3
Threaded holes metric
4
Options
Without
0
Fluorinated elastomer seals
1
T4 Speed sensor installed
2
Brake environmental cover without plug
3
Case flushing
5
Diamond™
7
Predisposition for speed sensor
8
Reinforced sealing*
E
Special wheel rim mounting
G
High efficiency
H
Surface heat treatment of the shaft*
J
High speed
M
TR Speed sensor installed
S
* Standard
Kingpin on bearing support
Without C frame
B
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CHARACTERISTICS
33,0 kg [72,6 lb]
1,00 L [60 cu.in]
Dimensions for 1-displacement motor
without brake
P
mm [in]
C min.
mm [in]
C max.
mm [in]
D
mm [in]
Classe N.m [lb.ft]
M14 x 1.5
45 [1.77] 5 [0.20] 18 [0.71] 16.5 [0.65] 12.9 250 [184.4]
Studs
R0
12
F
3
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
38,3 kg [84,3 lb]
1,00 L [60 cu.in]
D
imensions for 1-displacement motor with brake
P
mm [in]
C min.
mm [in]
C max.
mm [in]
D
mm [in]
Classe N.m [lb.ft]
M14 x 1.5
45 [1.77] 5 [0.20] 18 [0.71] 16.5 [0.65] 12.9 250 [184.4]
Studs
W0
12
F
3
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47,8 kg [105,2 lb]
1,00 L [60 cu.in]
D
imensions for 2-displacement motor with brake
P
mm [in]
C min.
mm [in]
C max.
mm [in]
D
mm [in]
Classe N.m [lb.ft]
M14 x 1.5
45 [1.77] 5 [0.20] 18 [0.71] 16.5 [0.65] 12.9 250 [184.4]
Studs
W0
12
F
3
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
Load curves
The given load curves correspond to the conditions
specified below. For load curves corresponding to your
specifications, contact a Poclain Hydraulics engineer.
Permissible radial loads on bearing support Service life of bearings
Test conditions : Test conditions :
Static : 0 tr/min [0 RPM] 0 bar [0 PSI]
L : Millions B10 revolutions at 150 bars (average
pressure), with 25 cSt fluid, code 0 displacement,
without axial load.
Dynamic : 0 tr/min [ 0 RPM], code 0 displacement, without
axial load at max. torque (400 bar [ 5 802 PSI])
MGE02
1234
B120
B720
The service life of the components is influenced by the
pressure.You must check that the combination of forces applied
(Axial load / Radial load) is compatible with the permissible loads
for the components, and that the resulting service lives of these
components complies with the application's specifications. For an
accurate calculation, consult your Poclain Hydraulics application
engineer. ࠕ
Loads are hold by the bearing support and the pivot. It is
mandatory to check the compability of your load cases and the
max. permissible loads for the bearing support and the pivot
. For
an accurate calculation, consult your Poclain Hydraulics
application engineer.
P
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Efficiency
Overall efficiency Actual output torque
Average values given for guidance for code
0 displacement after 100 hours of operation
with HV46 hydraulic fluid at 50°C [122°F].
MG02
MGE02
For a precise calculation, consult your Poclain Hydraulics
application engineer.
PSI
bar
% RPM
N.m
lb.ft
tr/min
RPM
bar
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
Chassis mounting
Greaser
view X
Ultimate tensile strength: 500 MPa mini
N.m [lb.ft]
4xM10 10.9 69 [51]
Classe
(*)
(*) The tightening torques are given for the indicated loads.
2 x greaser M10
Greaser specification:
Screw the greaser by hand until the lock, then screw it 1/2 or 1 turn more.
Greasing recommendations:
• Replace the grease every 50 hours max.
• Be careful that grease do not contain any solid lubricants.
• The grease must not contain more than 5% MoS
2
,ZnS
• Oil mineral-based grease lithium soap are recommended.
• Greasing pressure can exceed 150 bar.
During greasing, in order to respect the environment, we
recommend that you recover the excess grease (used
grease) from around the kingpin seal.
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Steering attachment
Steering angle and steering stop
The steering anglesE and E’) can be differents within the limits of the
customer’s chassis conception and the hydraulics connections.
The steering angle is adjusted with the steering stop.
The customer must adjust the stroke of the steering stop (L)
according to the chassis conception.
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
Hydraulic connections
You are strongly advised to use the fluids specified in
brochure “Installation guide” N° 801478197L.
To find the connections’ tightening torques, see the brochure
“Installation guide” N° 801478197L.
D = -90° Orientation -90
1
D = +90°
Orientation +90
2
1-displacement
2-displacement
A
SAE J514
4
NF E48 050
A
SAE J514
4
NF E48 050
A
SAE J514
[1/4" dia.]
9/16" 18 UNF
ISO 11 926 1
7/8" 14 UNF 9/16" 18 UNF
X
M22x1.5 M14x1.5 M14x1.5
R-A1-A2
1, 2
R-A
ISO 11 926-1
7/8"-14 UNF
3
BSPP
ISO 1 179-1
Ø21
ISO 9 974-1
R-L 1, 2
ISO 11 926-1
7/8"-14 UNF
ISO 1 179-1
Ø21
XXT
Ø13
Ø13
[1/4" dia.]
9/16"-18 UNF
3/4"-16 UNF
Ø17
YX
9/16"-18 UNF
[3/8" dia.]
M18x1.5
1, 2
3
BSPP
[1/2" dia.]
ISO 9 974-1
M22x1.5
[1/2" dia.]
Ø13
[1/4" dia.] [1/4" dia.]
M18x1.5
M18x1.5
Ø13
9/16"-18 UNF 9/16"-18 UNF
02
G
112
M 02
G
E
M
123456
S
1234
PDC
F
1233
Standards Power supply Case drain Control of
parking break
2
nd
displacement
control
O
l
d
s
t
a
n
d
a
r
d
s
1-displacement
2-displacement
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
BRAKES
Rear brake
Do not run-in the multidisc brakes.
A functional check of the parking brake must be carried out
each time it is used as an auxiliary brake (or emergency brake).
For all vehicles capable of speeds over 25 km/hour, please
contact your Poclain Hydraulics application engineer.
M 02
G
1
C
12
D
3
12
F
3
12
P
34 12
S
3456
G 02
E
M
W0
Brake principle
This is a multidisc brake which is activated by a lack of pressure. The spring exerts a force on the piston, which resses on the fixed and
mobile discs, and immobilizes the shaft. The braking torque decreases in linear proportion to the brake release pressure.
Emergency brake release
M12
42 N.m [30.9 lb.ft]
2 500 Nm [1 840 lb.ft]
1 625 Nm [1 200 lb.ft]
1 875 Nm [1 380 lb.ft]
12 bar [174 PSI]
30 bar [435 PSI]
100 cm³ [6,1 cu.in]
16 cm³ [1,0 cu.in]
38 179 J
W0
Parking brake torque at 0 bars on housing
(new brake)
Dynamic emergency braking torque at 0 bars on housing
(max. 10 uses of emergency brakes)
Residual parking braking at 0 bars on housing *
Min. brake release pressure
Max. brake release pressure
Oil capacity
Volume for brake release
Max. energy dissipation
* After emergency brake has been used
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
OPTIONS
1 - Fluorinated elastomer seals
Nitrile seals marked in the figure below replaced by fluorinated elastomer seals.
You can accumulate more than one optional part. Consult your
Poclain Hydraulics sales engineer.
Consult your Poclain Hydraulics sales engineer.
M 02
G
1
C
12
D
312
F
312
P
34 12
S
3456
G 02
E
M
2 - S - Q - 8 - Installed speed sensor or predisposition
Look at the "Mobile Electronic" N° A01889D technical
catalogue for the sensor specifications and its
connection.
To install the sensor, see the ''Installation guide''
brochure No. 801478197L.
Designation
T4 Speed sensor (without rotation direction)
2
TR Speed sensor (digital rotation direction)
S
TD speed sensor (two phase shifted frequencies)
Q
Predisposition for speed sensor
8
A-A
Max. length Y=
Standard number of pulses per revolution=
19
40
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Steerable wheel motors MG02 - MGE02 POCLAIN HYDRAULICS
3 - Brake environmental cover without plug
No plug or hole in the cover.
(see figure opposite)
7 - Diamond™
Special treatment of the motor core which considerably increases its strength, making the motor much more tolerant to temporary instances of the
operating conditions being exceeded.
E - Reinforced sealing (standard)
Reinforced seals.
G - Special wheel rim mounting
Enables certain combinations different from the standard mountings defined on page 8 are possible.
H - High efficiency
Reinforced piston sealing to improve volumetric efficiency.
J - Treated shaft
Heat treatment on the indicated bearing radius and splines.
M - High speed
Under certain conditions, an increase in the maximum speed of 30% above the values indicated in the table on page 2 is possible.
Consult your Poclain Hydraulics sales engineer.
For a precise calculation, consult your Poclain Hydraulics application engineer.
Treated areas
For a precise calculation, consult your Poclain Hydraulics application engineer.
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
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POCLAIN HYDRAULICS Steerable wheel motors MG02 - MGE02
Brake Model codeCharacteristics Options
www.poclain-hydraulics.com
20/2/17
A23577C
A23578D
Not available
Not available
Not available
B33973B
Not available
Not available
Poclain Hydraulics reserves the right to make any modifications it deems necessary to the products described in this document
without prior notification.The information contained in this document must be confirmed by Poclain Hydraulics before any order is
submitted.
Illustrations are not binding.
The Poclain Hydraulics brand is the property of Poclain Hydraulics S.A.