Bus EURO VI Powertrain
Mercedes-Benz Powertrain Customized. Worldwide. With passion.
Content Mercedes-Benz Powertrain
04
Mercedes-Benz engine systems Nomenclature engines Engine portfolio Medium-duty engines Heavy-duty engines Exhaust after-treatment
06 10 11 12 18 22
Mercedes-Benz transmission systems 24 Nomenclature transmissions 28 Transmission portfolio 29 Bus transmissions 30 Retarder36
Mercedes-Benz axle systems Nomenclature axles Axle portfolio Front axles Rear axles
38 42 43 44 50
Service benefits at a glance
54
One-stop shop
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Going the extra mile: 1 + 1 + 1 > 3.
Mercedes-Benz Powertrain offers outperforming and individual engineered aggregates – engine systems, transmission systems and axles – each will provide our customers with the highest durability and quality at the same time. Together, they compose an even more sophisticated, technologically advanced and with regards to fuel efficiency, unbeatable powertrain. Mercedes-Benz Powertrain – the choice is yours.
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Our tailor-made powertrain benefits for you …
… and for your customers …
• Reduces
• Provides
optimized fuel efficiency by tailor-made powertrain solutions
• Ensures
robust and reliable performance in every scenario of operation
integration efforts
• Leads
to an optimized system setup due to common electric and electronic architecture (EE architecture) for efficient interaction of all aggregates
• Increases • One electronic
tool requires less training for your engineering group
our premium Mercedes-Benz quality standards due to the production on our high volume production lines
the resale value of the vehicles due to the highest quality standards offered by Mercedes-Benz
• Guarantees
• Minimizes
• High
• Optimizes
invest in Mercedes-Benz R&D assures state-of-the-art quality
downtimes as our worldwide after-sales network covers warranty and policy from one source maintenance and repair worldwide via our one-stop shop logic for the complete powertrain
• Overall
robust and reliable powertrain solutions provide a long lifetime for your aggregates
• One Key
Account Manager as main contact partner
• One system
supplier for your individual powertrain solution
• One contractual
partner
Powertrain integration competence sets the pace – find your perfect individual solution.
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Mercedes-Benz engine systems of the OM 93X and OM 47X model series. Outstanding design and efficiency. Specifically developed to comply with the EURO VI emission standard.
Mercedes-Benz engine systems | Portfolio
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Our engine product portfolio: TCO reduction at its best. Bringing together the very latest innovative engine technology, they are designed with focus on environement, effectiveness and performance.
Based on these characteristics our engines in all series are ideal for city buses and touring coaches. They can also be modified to create customer-specific variants for use in different bus applications.
The benefits for our customers are low fuel consumption, long engine life and extended maintenance intervals. Our new engines deliver a spontaneous response, impressive power output and the smoothest running characteristics.
Mercedes-Benz engine systems | Portfolio
9
Derivation "Nomenclature" – engines.
4 = L4 cylinder engine (5.1 l) 6 = L6 cylinder engine (7.7 l) 0 = L6 cylinder engine (10.7 l) 1 = L6 cylinder engine (12.8 l)
OM = Oil (diesel) engine M = Gas (oline) engine
M
9
3
6
G
h = Horizontal G = Gas 3 = Medium-duty engine 7 = Heavy-duty engine
9 = 93X model series (MD) 4 = 47X model series (HD)
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Engines for EURO VI. Portfolio of EURO VI engines for buses Model series
Type
Cylinder
Displ. [liters]
OM 93X
934
L4
5.1
Mediumduty
936
L6
7.7
936 h
L6
7.7
936 G
L6
7.7
470
L6
10.7
471
L6
12.8
OM 47X Heavyduty
Power range [kW]
115 130
155 170 175
200
220 235
260
220
260
222 265
290
315 350
100
200
375
300
400
Power range of the EURO VI engines for buses Torque [Nm] 3000 2500 OM 471
2000 OM 470 1500 OM 936^^
1000
OM 936 h M 936 G
OM 934
500 0 0
50
100
150
200
250
300
350
400
450
500
Power [kW]
Mercedes-Benz engine systems | Portfolio
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Always in their element – whatever the terrain: Medium-duty engines. Product features.
• 4- and
6-cylinder diesel engines in an in-line arrangement with cooled exhaust gas recirculation
• Displacement
of 5.1 and 7.7 liters
• Future-proof
• Powerful
• Output
of 115 up to 260 kW
• Multiple
• Special
combustion system to minimize fuel consumption
• "One
• Common
rail injection system up to 2400 bars and multiple injection
• Tailor-made charging system with 1-
valve timing gear with 2 overhead camshafts and 4-valve
technology and dynamic engine brakes with up to 300 kW brake power
power take-off options
box" exhaust after-treatment with SCR and DPF
• Special
gas-powered and horizontal variant
and 2-stage turbochargers
Mercedes-Benz engine systems | Medium-duty engines
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OM 934 LA
Performance Power [kW] 180
Arrangement: L4 Displacement: 5.1 l
170 kW
160
155 kW
140
130 kW
120
115 kW
100 80 60 40 800
1000
1200
1400
1600
1800
2000
2200
2400
2600
1000
1200
1400
1600
1800
2000
2200
2400
2600
Weight and dimensions* Torque [Nm] Weight DIN 70020 - GZ 495 kg (single stage charger) DIN 70020 - GZ 510 kg (dual stage chargers) Dimensions A = length B = width (excl. charge air pipe) C = height
1000 800
C
810 mm
B
400
A
680 mm 900 mm
200 800
* depending on equipment installed
Rated power and nominal torque
14
600
Rated power
[kW/hp]
115/156
130/177
155/211
170/231
at engine speed
[rpm]
2200
2200
2200
2200
Nominal torque
[Nm]
650
750
850
900
at engine speed
[rpm]
1200 –1600
1200 –1600
1200 –1600
1200 –1600
OM 936 LA
Performance Power [kW]
260 kW
260
Arrangement: L6 Displacement: 7.7 l
235 kW
240 220 200
220 kW
180
200 kW
160
175 kW
140 120 100 80 800
1000
1200
1400
1600
1800
2000
2200
2400
2600
1000
1200
1400
1600
1800
2000
2200
2400
2600
Weight and dimensions* Torque [Nm] 1400
Weight DIN 70020 - GZ 652 kg (single stage charger) DIN 70020 - GZ 666 kg (dual stage chargers) Dimensions A = length B = width (excl. charge air pipe) C = height
1200
B 1057 mm
800
C A
680 mm 910 mm
1000
600 400 800
* depending on equipment installed
Rated power and nominal torque Rated power
[kW/hp]
175/238
200/272
220/299
235/320
260/354
at engine speed
[rpm]
2200
2200
2200
2200
2200
Nominal torque
[Nm]
1000
1100
1200
1300
1400
at engine speed
[rpm]
1200 –1600
1200 –1600
1200 –1600
1200 –1600
1200 –1600
Mercedes-Benz engine systems | Medium-duty engines
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OM 936 h (horizontal)
Performance Power [kW] 280
Arrangement: L6 Displacement: 7.7 l
260 kW
260 240
220 kW
220 200 180 160 140 120 100 80 800
1000
1200
1400
1600
1800
2000
2200
2400
2600
1000
1200
1400
1600
1800
2000
2200
2400
2600
Weight and dimensions* Torque [Nm] Weight DIN 70020 - GZ 745 kg
1400 1200
Dimensions A = length A1 (basic engine) B = width C = height C1 (basic engine)
1500 mm 1120 mm 1140 mm 940 mm 660 mm
A A1
C
1000
C1
800
B
600 400
* depending on equipment installed
800
Rated power and nominal torque
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Rated power
[kW/hp]
220/299
260/354
at engine speed
[rpm]
2200
2200
Nominal torque
[Nm]
1200
1400
at engine speed
[rpm]
1200 –1600
1200 –1600
M 936 G
Performance Power [kW] 260
Arrangement: L6 Displacement: 7.7 l Fuel: CNG
240
222 kW
220 200 180 160 140 120 100 80 800
1000
1200
1400
1600
1800
2000
2200
2400
2600
1000
1200
1400
1600
1800
2000
2200
2400
2600
Weight and dimensions* Torque [Nm] 1400
Weight DIN 70020 - GZ 691 kg Dimensions A = length B = width (excl. charge air pipe) C = height
1200
B
1060 mm
C
780 mm 930 mm
A
1000 800 600 400 800
* depending on equipment installed
Rated power and nominal torque Rated power
[kW/hp]
222/302
at engine speed
[rpm]
2000
Nominal torque
[Nm]
1200
at engine speed
[rpm]
1200 –1600
Mercedes-Benz engine systems | Medium-duty engines
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Always giving 100%: Heavy-duty engines. Product features.
• 6-cylinder
diesel engines in an in-line arrangement with cooled exhaust gas recirculation
• 1-stage
turbocharger with asymmetrical turbine geometry
• Future-proof • Displacement
• Powerful • Output
of 265 up to 375 kW
• Special
combustion system to minimize fuel consumption
and dynamic engine brakes
• Additional • "One • New
valve timing gear with 2 overhead camshafts and 4-valve technology
of 10.7 to 12.8 liters
power take-off options
box" exhaust after-treatment with SCR and DPF
engine generation combines higher performance with lower fuel consumption
• Common
rail injection system up to 2700 bars and unrestricted choice of injection process
Mercedes-Benz engine systems | Heavy-duty engines
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OM 470
Performance
**
Power [kW] 320
Arrangement: L6 Displacement: 10.7 l
315 kW
300
290 kW
280 ** new engine generation
265 kW
260 240 220 200 180 160 800
Weight and dimensions*
1200
1400
1600
1800
2000
2200
1000
1200
1400
1600
1800
2000
2200
Torque [Nm]
Weight DIN 70020 - GZ 1020 kg Dimensions A = length B = width (excl. charge air pipe) C = height
1000
2200 2000
B
1289 mm
C
750 mm 1029 mm
1800 1600
A
1400 1200
* depending on equipment installed
1000 800
Rated power and nominal torque
20
Rated power
[kW/hp]
265/360
290/394
315/428
at engine speed
[rpm]
1600
1600
1600
Nominal torque
[Nm]
1700
1900
2100
at engine speed
[rpm]
1100
1100
1100
OM 471
Performance
**
Power [kW] 380
375 kW
360
350 kW
Arrangement: L6 Displacement: 12.8 l
340
** new engine generation
320 300 280 260 240 220 200 800
Weight and dimensions*
1000
1200
1400
1600
1800
2000
2200
1000
1200
1400
1600
1800
2000
2200
Torque [Nm] 2600
Weight DIN 70020 - GZ 1162 kg Dimensions A = length B = width (excl. charge air pipe) C = height
2400 2200
B
1307 mm
C
770 mm 1058 mm
A
2000 1800 1600 1400
* depending on equipment installed
1200
Rated power and nominal torque
1000 800
Rated power
[kW/hp]
350/476
375/510
at engine speed
[rpm]
1600
1600
Nominal torque
[Nm]
2300
2500
at engine speed
[rpm]
1100
1100
Mercedes-Benz engine systems | Heavy-duty engines
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Clean from start to finish: EURO VI exhaust after-treatment box. In view of the high requirements stipulated by the EURO VI emission standard, Mercedes-Benz has developed cooled exhaust gas recirculation (EGR), particulate filters and SCR technology for its new generation of engines. This has already proven to be a winning combination in its use in commercial vehicles from Daimler Buses. Together, the systems results in an extremely efficient exhaust after-treatment.
Product features • Low
exhaust back pressure
NOx reduction at a broad range of exhaust gas volume flows and exhaust gas temperatures
• Small
installation space and low weight
• Significant
• Long
• Maximum
• Consistent
possible soot burn-off in the diesel particulate filter (DPF) by means of automatic regeneration
service lifetime, adapted to the engine's service lifetime
• Many
addition, adaptive regeneration of the DPF in all relevant driving cycles
common parts strategy
different variants for exhaust gas inlet and outlet
• In
• Large capacity for ash storage in the DPF to make
maintenance intervals as long as possible 22
• Metering
of AdBlue© without compressed air; very low AdBlue© consumption
Mercedes-Benz engine systems | Exhaust after-treatment
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Transmission systems by Mercedes-Benz. Reliable transmissions for a wide range of applications.
Mercedes-Benz transmission systems | Portfolio
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Our transmission product portfolio: Smooth operation in every situation. Our range of service extends from 6-speed to 8-speed automated manual shifted transmissions for buses and coaches. All transmissions are manufactured on a large scale by Mercedes-Benz buses and coaches and are engineered to meet the highest standards of technology and quality.
With decades of experience in the manufacturing and development of buses and coaches transmissions, we possess a unique manufacturing expertise, which distinguishes our transmissions today particularly by three features: Very smooth running characteristics Low weight • Extreme durability •
Meeting the demands of our customers is the focus of our work. We feel committed to advancing the design of our systems in a consistent and innovative way in-line with market and customer requirements.
•
In future, we will continue to stand for innovative products focused on customer-oriented applications.
Manual transmission Fully automated manual transmission Transmission for buses and coaches
Mercedes-Benz transmission systems | Portfolio
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Derivation "Nomenclature" – transmissions.
GO = Mercedes-Benz transmission omnibus 8 gears
GO
250
-8
K = Non synchronized transmission S = Synchronized transmission SWR = Secondary Water Retarder
K
PowerShift 3
SWR
PowerShift 3 = Automated gearshift CPS = Mechanical manual transmission 250 = Maximum torque/10 [2500 Nm]
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Transmissions for EURO VI.
Model series
Type
Ratio
Forward gears
Buses
G 70-6S
5.94 – 0.74/8.00
6
G 71-6S
9.20 –1.00/9.20
6
G 90-6S
6.70 – 0.73/9.20
6
GO 190-6 CPS
6.70 – 0.73/9.18
6
GO 210-6E CPS
6.53 – 0.80/8.16
6
GO 230-6E CPS
6.53 – 0.80/8.16
6
GO 250-8 PowerShift 3
6.57 – 0.63/10.38
8
Max. input torque [Nm] 750 700 1000 1900 2100 2300 2500
500
automated and manual
automated
1000
1500
2000
2500
3000
manual
Mercedes-Benz transmission systems | Portfolio
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Redefining efficiency: Bus transmissions by Mercedes-Benz. Product features.
• 6-speed
manual shifted and 8-speed automated shifted manual transmissions
• Bus
• Resilient
from 700 Nm to 2500 Nm max. input torque
• Quiet
• Gear
specific degressive gradation characteristics for high driving comfort
running characteristics and long service life through optimized gear set geometry and high-precision processing technologies
ratio spread from 8.00 to 10.38 • Long
• Permissible max. • Secondary
gross vehicle weight (GVW) up to 28.5 t
water retarder available
service intervals and low operating costs due to a fuel-efficient design optimized for specific operating condition
• More
comfortable vibration characteristics due to an integrated engine suspension
Mercedes-Benz transmission systems | Bus transmissions
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G 70-6S
G 71-6S
• Powerful
• Double
multi-synchronization
synchronization in 1st to 4th gear
• 6-speed
synchronized transmission with a wide gear ratio spread
• Overdrive
• 6-speed
synchronized transmission with a wide gear ratio spread
configuration
• Direct-drive
transmission
• Hydrodynamic
retarder can be adapted
Specifications and dimensions
Specifications and dimensions Max. input torque 750 Nm
Max. input torque 700 Nm
Permissible gross combination weight (GCW) 9.5 (12) t
Permissible gross combination weight (GCW) 24 t
Transmission weight excl. oil
B
96 kg
C
Oil filling capacity 5.35 l
A
A = length 697.5 mm B = width 562 mm C = center to center 114 mm
Transmission weight excl. oil
B
135 kg/ 188 kg*
C
Oil filling capacity 9 l
A
A = length 709 mm B = width 562 mm C = center to center 130 mm * with retarder
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Gear
1
2
3
4
5
6
R
Gear ratio spread
Gear
1
2
3
4
5
6
R
Gear ratio spread
Ratio
5.940
3.281
1.978
1.310
1.000
0.742
5.423
8.00
Ratio
9.201
5.230
3.145
1.978
1.310
1.000
0.742
9.20
G 90-6S
GO 190-6 CPS
• 6-speed
• 6
synchronized transmission with a wide gear ratio spread
• Double • Single • SAE
• Direct-drive
synchronization in 1st to 4th gear
• Outer
synchronization in 5 and 6 gear th
cone synchronization
• All
components optimized specifically for use in buses
configuration
• Hydrodynamic
transmission
th
2 or SAE 3 clutch housing available
• Overdrive
degressive stepped gears
• Secondary
water retarder can be
adapted
retarder can be adapted
Specifications and dimensions
Specifications and dimensions Max. input torque 1000 Nm
Max. input torque 1900 Nm
Permissible gross combination weight (GCW) 28 t
Permissible gross combination weight (GCW) 20 t
Transmission weight excl. oil
B
138.5 kg/ 191.5 kg*
Transmission weight excl. oil
C
Oil filling capacity 9 l
A
A = length 709 mm B = width 562 mm C = center to center 130 mm
Ratio
1 6.696
C
Oil filling capacity 9 l
B
A
A = length 709 mm B = width 630 mm C = center to center 152 mm
* with retarder
Gear
225 kg/ 268 kg*
* with retarder
2 3.806
3 2.289
4 1.480
5 1.000
6 0.728
R 6.294
Gear ratio spread
Gear
1
2
3
4
5
6
R
Gear ratio spread
9.20
Ratio
8.170
3.711
2.790
1.810
1.250
1.000
7.683
8.17
Mercedes-Benz transmission systems | Bus transmissions
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GO 210-6E CPS
GO 230-6E CPS
• 6
• 6
degressive stepped gears
• Overdrive • Outer
configuration
• Overdrive
cone synchronization
• Outer
• All
components optimized specifically for use in buses
• Secondary
configuration
cone synchronization
• All
components optimized specifically for use in buses
water retarder can be
• Secondary
adapted
water retarder can be
adapted
Specifications and dimensions
Specifications and dimensions
Max. input torque 2100 Nm
Max. input torque 2300 Nm
Permissible gross combination weight (GCW) 24 t
Permissible gross combination weight (GCW) 24 t
Transmission weight excl. oil
Neues Schattenbild
225 kg/ 268 kg*
Transmission weight excl. oil
C
Oil filling capacity 13 l
A
A = length 846 mm B = width 630 mm C = center to center 152 mm
Neues Schattenbild
225 kg/ 268 kg*
B
Oil filling capacity 13 l
B
* with retarder
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degressive stepped gears
C
A
A = length 846 mm B = width 630 mm C = center to center 152 mm * with retarder
Gear
1
2
3
4
5
6
R
Gear ratio spread
Gear
1
2
3
4
5
6
R
Gear ratio spread
Ratio
6.528
3.711
2.238
1.443
1.000
0.799
6.136
8.16
Ratio
6.528
3.711
2.238
1.443
1.000
0.799
6.136
8.16
GO 250-8 NewAMT • 8
degressive stepped gears
• 8-speed
none synchronized transmission with a wide gear ratio spread
• Double-overdrive
configuration
• All
components optimized specifically for use in buses
• Secondary
water retarder can be adapted
Specifications and dimensions Max. input torque 2500 Nm Permissible gross combination weight (GCW) 28.5 t Transmission weight excl. oil
221 kg/ 264 kg*
B C
Oil filling capacity 13.5 l
A
A = length 846 mm B = width 630 mm C = center to center 152 mm * with retarder
Gear
1
2
3
4
5
6
7
8
R1
Ratio
6.571
4.158
2.748
1.739
1.259
1.000
0.797
0.633 6.176
R2
Gear ratio spread
3.909 10.38
Mercedes-Benz transmission systems | Bus transmissions
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Retarder.
The integrated secondary water retarder and hydrodynamic oil retarder from Voith offer a high braking torque in combination with a compact, weight-saving design. The weight advantages of the new retarders are between 25 kg (VR 123) and 43 kg (SWR) compared to previous oil retarders. The braking power of the retarder is also independent of selected gear or current engine speed. A gear change does not result in any interruption in the retarder braking action and the retarder braking power depends only on the current driving speed.
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The braking power can be controlled precisely in five stages using the right hand control stalk on the steering column. In addition to the engine brake, the retarder provides a maximum braking torque up to 3500 Nm (SWR) or 1500 Nm (VR 123).
Secondary water retarder
Hydrodynamic retarder – VR 123
The secondary water retarder comes with:
The hydrodynamic retarder comes with:
• Power
• Stainless
loss reduction by axial rotor displacement
• No
heat exchanger required since the cooling water is used as the operating medium directly
steel heat exchanger
• Optimized
hydrodynamics
• Integration • Compact
unit requires only minimal installation space
• Freedom
from maintenance for reduced vehicle service costs
into the vehicle management
• Standard
• Significantly • Increased
lighter than comparable hydrodynamic retarder
• Same
comfort through low noise emission
• Integration • Between
prop shaft length is determined by the retarder unaffected
•
prop shaft length with or without retarder
Power loss reduction by axial rotor displacement
into the vehicle management
20–30 % higher constant brake power than current oil retarders
3500
max. braking torque [Nm]
800
max. braking power [kW]
5000
max. rotation [min -1]
1500
max. braking torque [Nm]
350
max. braking power [kW]
3150
max. rotation [min -1]
Mercedes-Benz transmission systems | Retarder
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Mercedes-Benz axle systems. Reliable axles for every application.
Mercedes-Benz axle systems | Portfolio
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Our axle product portfolio: Efficiency on demand. Our product range consists of various axle systems. This product range is highly suitable for nearly all bus categories from minibuses through to coaches, in urban areas or overland. We use our customers' experience, their requirements and demands as an essential precondition in the development and technology of new axle concepts. Our innovative state- of-the-art engineering and our quality-driven plants in Germany give our axles outstanding performance in:
Top vehicle manufacturers around the world know they can depend on these features of our axles and the reliability of our services. This leads us to one of the world’s biggest producers of commercial axles. Convince yourself and discover the advantages of Mercedes-Benz axles.
• Durability • Fuel
efficiency operation
• Quiet
FA
Front axles
RA
Rear axles Axles for minibuses Axles for midibuses Axles for city buses and coaches
Mercedes-Benz axle systems | Portfolio
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Derivation "Nomenclature" – axles.
Non-driven axles
F = Front axle FO = Front axle omnibus
F
9
Axle load [t]
42
Driven axles R = Rear axle RT = Rear axle tandem RO = Rear axle omnibus FD = Front axle driven FT = Front axle tandem driven
R
390
Ring Gear Diameter [mm]
The right axle for every application. Axle portfolio: front axles* and rear axles.
Vehicle category
Front axles*
Tire size [inches]
Minibus (7 m)
F 3.5 – F 4.4
17.5
Midibus (8 –10 m)
F 5.3 – F 6.1
19.5/20/22.5
City bus/coach (12 m)
FO 7.5
22.5
F 7.5 – F 8
20/22.5
F9
20/22.5/24
t
Axle load [t]
3.5 –4.4 5.3–6.1
Rear axles
Tire size [inches]
RO 325
17.5
RO 390
19.5
RO 440
22.5
Axle load [t]
6 –8.3 9.5 –10
7.5 7.5 –8
11.5 –13
9
4
6
8
5
10
* front axles are applicable as steered tag and pusher axles; rigid tag and pusher axles on request For further applications see truck axle portfolio.
Mercedes-Benz axle systems | Portfolio
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Reliability at high level: Mercedes-Benz front axle systems. Product features.
• Tire sizes
from 17.5 to 24 inches
• Axle loads • Gross
from 3.5 to 9 tons (per axle)
vehicle weight rating (GVWR) from 6.5 to 20 tons
• Longer
lifetime and easy maintenance
• Optimum • Modular
power/weight ratio due to weight-optimized technical design
concept provides maximum flexibility to customer request
Mercedes-Benz axle systems | Front axle
45
F 3.5–F 4.4
F 5.3–F 6.1
FA
• Steered
FA
rigid axle with forged front axle beam for minibuses
• Steered
rigid axle with forged front axle beam for midibuses
• Recommended
• Recommended
Data and dimensions
Data and dimensions
Axle load
3.5–4.4 t
Axle load
5.3–6.1 t
Tire size
17.5 inches
Tire size
19.5/20/22.5 inches
Brake
disk brake
Brake
disk brake
Axle weight*
245 kg
Axle weight*
357 kg
A = overall width B = track width C = spring track D = max. turning angle
2293–2303 mm 1949–1975 mm 830 mm 52°
A = overall width B = track width C = spring track D = max. turning angle
2346–2389 mm 1955–1991 mm 830 mm 52°
A
B
D
46
B
D C
* varies depending on configuration
A
C * varies depending on configuration
FO 7.5 FA
• Steered
rigid axle with forged front axle beam option owing to a large drop • Recommended for city buses and coaches • Low-floor
Data and dimensions Axle load
7.5 t
Tire size
22.5 inches
Brake
disk brake
Axle weight*
430 kg
A = overall width B = track width C = spring track D = max. turning angle
2495 mm 2101 mm 1094 mm 55°
A
B
D C * varies depending on configuration
Mercedes-Benz axle systems | Front axle
47
F 7.5–F 8
F9
FA
• Steered
FA
rigid axle with forged front axle beam for city-buses and coaches
• Steered
rigid axle with forged front axle beam for city-buses and coaches
• Recommended
• Recommended
Data and dimensions
Data and dimensions
Axle load
7.5–8 t
Tire size Brake Axle weight*
Axle load
9t
20/22.5 inches
Tire size
20/22.5/24 inches
disk brake/ drum brake
Brake
disk brake/ drum brake
Axle weight*
463 kg
A = overall width B = track width C = spring track D = max. turning angle
2435–2616 mm 2001–2153 mm 840 mm 48°
A
461 kg
A = overall width B = track width C = spring track D = max. turning angle
2449–2605 mm 2013–2153 mm 840 mm 52°
B
D C
* varies depending on configuration
48
A
B
D C
* varies depending on configuration
Mercedes-Benz axle systems | Front axle
49
50
Self-assured in every situation: Mercedes-Benz rear axle systems. Product features.
• Tire
sizes from 17.5 to 22.5 inches
• Hypoid
driven
• High
fuel efficiency
• Easy
maintenance and long oil change intervals
• Ring
Gear Diameter from 325 to 440 mm
• Longer
• Axle
loads from 6 to 13 tons (per axle)
• Optimum
• Gross
vehicle weight rating (GVWR) from 6.5 to 20 tons
lifetime and quieter operation due to our optimized gear set design
• Modular
power/weight ratio due to weight-optimized technical design
concept provides maximum flexibility to customer request
Mercedes-Benz axle systems | Rear axle
51
RO 325
RO 390
RA
• Fabricated
RA
axle housing for minibuses
• Fabricated
axle housing for midibuses
• Recommended
• Recommended
Data and dimensions
Data and dimensions
Axle load
Tire size Brake
10 t
17.5 inches
Tire size
19.5 inches
disk brake
Brake
disk brake
air springs/steel springs
Suspension
air springs
Drive type
single-stage/hypoid
Axle weight*
541 kg
A = overall width B = track width C = spring track
2439–2489 mm 1838–1840 mm 1022 mm
Ring Gear Diameter
390 mm
A
Suspension Drive type
single-stage/hypoid
Axle weight*
350 kg
A = overall width B = track width C = spring track
B
2232–2330 mm 1760–1775 mm 1022 mm
Ring Gear Diameter * varies depending on configuration
52
Axle load
6–8.3 t
325 mm
C
* varies depending on configuration
A
B
C
RO 440 RA
• Fabricated
axle housing for category city buses and coaches
• Recommended
Data and dimensions Axle load
11.5-13 t
Tire size
22.5 inches
Drake
disk brake
Suspension
air springs
A
Drive type single-stage/hypoid Axle weight* A = overall width B = track width C = spring track
B
683 kg
2419–2482 mm 1802–1804 mm 940 mm
Ring Gear Diameter
440 mm
C
* varies depending on configuration
Mercedes-Benz axle systems | Rear axle
53
Service benefits at a glance.
Application engineering consultancy service
Customer training
Spare parts supply
Service network
Our experts will help you to select the right powertrain components and additional equipment to create an engineered solution that suits your bus or coach applicationspecific requirements, no matter how tough the conditions.
Uniquely tailored training courses can be held in Germany and other countries around the world to ensure that you receive the necessary expert knowledge in regards to installing, operating and maintaining your powertrain in accordance with our high standards.
We will ensure spare parts remain available for many years after your initial investment. The quality level and reliability of our spare parts meet the same high standards that are set with our aggregate systems. This promise means lasting protection of your capital investment in our powertrain solutions.
Our global network of highly qualified service centers can assist in the maintenance of our most advanced systems.
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One-stop shop.
To create a coherent whole from the individual components, we offer our customers bespoke powertrain solutions. This involves selecting a suitable transmission to complement our proven engines, from the prop shaft to the axles, to put together the optimum, complete powertrain. If you have technical questions, would like additional information or wish to request installation drawings, please do not hesitate to contact our sales team: Sales External Customers Daimler AG 001-E206 70546 Stuttgart/Germany +49 (0)711 17- 5 41 86
[email protected] www.powertrain.mercedes-benz.com
Mercedes-Benz Powertrain | One-stop shop
55
September 2016 Please note: changes may have been made to the products since this publication went to press (09/2016). The manufacturer reserves the right to make changes to the design, form, colour and specification during the delivery period, provided these changes, while taking into account the interests of the vendor, can be deemed reasonable with respect to the purchaser. Where the vendor or the manufacturer uses symbols or numbers to describe an order or the subject of an order, no rights may be derived solely from these. The illustrations may show accessories and items of optional equipment which are not part of the standard specification. Colours may differ slightly from those shown, owing to the limitations of the printing process. This publication is distributed internationally. It may contain products and services which are not available in certain countries. Information given regarding statutory regulations, legal requirements and taxation and the consequences thereof applies to the Federal Republic of Germany only and is correct at the time of going to press. Daimler AG, Mercedesstr. 137, 70327 Stuttgart, Germany, TG/LPS 5330 · 2000 · 01-02/0916 Printed in Germany