SEW-Eurodrive MC Series User manual

Gearmotors \ Industrial Gear Units \ Drive Electronics \ Drive Automation \ Services
Industrial Gear Units of the
MC.. Series
O perating I nstructions
GD110000
Edition 11/2005
11357614 / EN

SEW-EURODRIVE – Driving the world

Contents
Operating Instructions – Gear Units of the MC.. Series
3
1 Important Information about the Operating Instructions.............................. 5
1.1 Important information and designated use................................................ 5
1.2 Explanation of symbols............................................................................. 6
1.3 Operating notes ........................................................................................ 6
2 Safety Notes ...................................................................................................... 7
2.1 Preface...................................................................................................... 7
2.2 General information .................................................................................. 7
2.3 Personal protective equipment ................................................................. 8
2.4 Transport of industrial gear units .............................................................. 9
2.5 Corrosion and surface protection ........................................................... 13
3 Gear Unit Design............................................................................................. 17
3.1 Basic design of industrial gear units of the MC..P.. series...................... 17
3.2 Basic design of industrial gear units of the MC..R.. series...................... 18
3.3 Unit designation / nameplates................................................................. 19
3.4 Mounting positions.................................................................................. 26
3.5 Mounting surface .................................................................................... 26
3.6 Housing orientation M1...M6................................................................... 27
3.7 Shaft positions ....................................................................................... 29
3.8 Direction of rotation................................................................................. 31
3.9 Lubrication of industrial gear units.......................................................... 35
4 Mechanical Installation................................................................................... 39
4.1 Required tools / resources...................................................................... 39
4.2 Before you begin..................................................................................... 39
4.3 Preliminary work ..................................................................................... 39
4.4 Gear unit foundation ............................................................................... 40
4.5 Mounting of solid shaft gear units........................................................... 47
4.6 Mounting / removing hollow shaft gear units with keyed connection...... 49
4.7 Mounting / removing hollow shaft gear units with shrink disc................. 51
4.8 Mounting a motor with motor adapter..................................................... 57
5 Mechanical Installation Options .................................................................... 60
5.1 Important installation instructions............................................................ 60
5.2 Mounting of couplings............................................................................. 63
5.3 Backstop FXM......................................................................................... 78
5.4 Shaft end pump SHP.............................................................................. 81
5.5 Installation with steel frame..................................................................... 84
5.6 Torque arm ............................................................................................. 85
5.7 Mounting of V-belt drive.......................................................................... 88
5.8 Oil heater ................................................................................................ 91
5.9 Temperature sensor PT100.................................................................... 97
5.10 SPM adapter........................................................................................... 98
5.11 Fan.......................................................................................................... 99
5.12 Flow switch ........................................................................................... 100
5.13 Visual flow indicator.............................................................................. 103
5.14 Connecting the oil/water cooling system............................................... 104
5.15 Connecting the oil/air cooling system ................................................... 104
5.16 Connecting the motor pump.................................................................. 104
6 Startup............................................................................................................ 105
6.1 Startup of MC gear units....................................................................... 105
6.2 Startup of MC gear units with backstop................................................ 106
6.3 Startup of MC gear units with steel oil expansion tank......................... 106
6.4 Taking MC gear units out of operation.................................................. 109
7 Inspection and Maintenance........................................................................ 110
7.1 Inspection and maintenance intervals................................................... 110
7.2 Lubricant change intervals.................................................................... 111
7.3 Inspection and maintenance of the gear unit........................................ 112
8 Malfunctions.................................................................................................. 118
8.1 Gear unit malfunctions.......................................................................... 118

Contents
4
Operating Instructions – Industrial Gear Units of the MC.. Series
9 Mounting Positions...................................................................................... 119
9.1 Symbols used ....................................................................................... 119
9.2 Mounting positions of MC.P.. gear units............................................... 120
9.3 Mounting positions of MC.R.. gear units............................................... 121
10 Design and Operating Notes........................................................................ 122
10.1 Guideline for oil selection...................................................................... 122
10.2 Lubricants for MC.. industrial gear units ............................................... 126
10.3 Grease.................................................................................................. 128
10.4 Lubricant fill quantities .......................................................................... 129
11 Change Index................................................................................................. 130
11.1 Changes to the previous edition ........................................................... 130
12 Index............................................................................................................... 132

Operating Instructions – Industrial Gear Units of the MC.. Series
5
1
Important information and designated use
Important Information about the Operating Instructions
1 Important Information about the Operating Instructions
1.1 Important information and designated use
Integral part of the product
The operating instructions are part of the MC.. industrial gear units and contain
important information for operation and service. The operating instructions are written
for assembly, installation, startup and service employees who are involved in the
installation and maintenance of MC.. industrial gear units.
Designated use
The designated use refers to the procedure specified in the operating instructions.
The MC.. industrial gear units are units run by motors for industrial and commercial
systems. Gear unit utilizations other than those specified and areas of application other
than industrial and commercial systems can only be used after consultation with SEW-
EURODRIVE.
In compliance with the EG Machinery Directive 98/37/EG, the MC.. industrial gear units
are components for installation in machinery and systems. In the scope of the EG
directive, you must not take the machinery into operation in the designated fashion until
you have established that the end product complies with the Machinery Directive
98/37/EG.
Qualified personnel
MC.. industrial gear units may represent a potential hazard for persons and material.
Consequently, assembly, installation, startup and service work may only be performed
by trained personnel who are aware of the potential hazards.
The personnel must be appropriately qualified for the task in hand and must be familiar
with the assembly, installation, startup and operation of the product. The personnel must
read the operating instructions, in particular the safety notes section, carefully and
ensure that they understand and comply with them.
Liability for defects
Incorrect handling or any action performed that is not specified in these operating
instructions could impair the properties of the product. In this case, you lose any right to
claim under limited warranty against SEW-EURODRIVE GmbH & Co KG.
Product names and trademarks
The brands and product names contained within these operating instructions are
trademarks or registered trademarks of the titleholders.
Waste disposal (Please follow the latest instructions):
• Housing parts, gears, shafts and roller bearings of the gear units must be disposed
of as steel scrap. This also applies to gray-cast iron parts if there is no special
collection.
• Collect waste oil and dispose of it according to the regulations in force.

6
Operating Instructions – Industrial Gear Units of the MC.. Series
1Explanation of symbols
Important Information about the Operating Instructions
1.2 Explanation of symbols
1.3 Operating notes
Hazard
Indicates an imminently hazardous situation which, if not avoided, WILL result in death
or serious injury.
Warning
Indicates an imminently hazardous situation caused by the product which, if not
avoided, WILL result in death or serious injury. You will also find this signal to indicate
the potential for damage to property.
Caution
Indicates a potentially hazardous situation which, if not avoided, MAY result in minor
injury or damage to products.
Note
Indicates a reference to useful information, e.g. on startup.
Documentation reference
Indicatesareferencetoa document, such asoperatinginstructions,catalog,data sheet.
•It is essential to contact SEW-EURODRIVE regarding a subsequent change of
mounting position!
•The industrial gear units of the MC.. series are delivered without oil fill. Refer
to the information on the nameplate!
•Refer to the instructions in the sections "Mechanical Installation" and
"Startup"!

Operating Instructions – Industrial Gear Units of the MC.. Series
7
2
Preface
Safety Notes
2 Safety Notes
2.1 Preface
2.2 General information
During or after operation, industrial gear units and motors have:
• Live parts
• Moving parts
• Hot surfaces (may be the case)
Only qualified personnel may carry out the following work:
• Installation / assembly
• Connection
•Startup
• Maintenance
•Servicing
The following information and documents must be observed during these processes:
• Relevant operating instructions and wiring diagrams
• Warning and safety signs on the gear unit
• System-specific regulations and requirements
• National / regional regulations governing safety and the prevention of accidents
The following safety notes are concerned with the use of MC.. industrial gear units.
If using gearmotors, please also refer to the safety notes for motors in the corresponding
operating instructions.
Please also consider the supplementary safety notes in the individual sections of
these operating instructions.
Never install damaged products or take them into operation.
Submit a complaint to the shipping company immediately in the event of damage.
Serious injuries and property damage may result from:
• Improper use
• Incorrect installation or operation
• Unauthorized removal of necessary protection covers or the housing

8
Operating Instructions – Industrial Gear Units of the MC.. Series
2Personal protective equipment
Safety Notes
Transportation Inspect the shipment for any damage in transit as soon as you receive the
delivery. Inform the shipping company immediately. It may be necessary to
preclude startup.
Startup /
operation
Secure the key for test mode without output elements. Do not deactivate monitoring and
protection equipment even for testing.
Switch off the main motor if in doubt whenever changes occur in relation to normal
operation (e.g. increased temperature, noise, vibration). Determine the cause and
contact SEW-EURODRIVE, if required.
Inspection /
maintenance
Refer to the instructions in Sec. "Inspection and Maintenance."
2.3 Personal protective equipment
Always wear the following when carrying out work on the gear unit:
• Tight-fitting clothing (not prone to tear, no loose sleeves, no rings, etc.).
• Safety glasses for protecting the eyes from falling objects and liquids.
• Safety shoes for protection against heavy falling objects and slipping on a slippery
floor.
• Hearing protection for protection against hearing damage for sound pressure levels
exceeding 80 dB (A).
Check that the direction of rotation is correct in decoupled status. Listen out for
unusual grinding noises as the shaft rotates

Operating Instructions – Industrial Gear Units of the MC.. Series
9
2
Transport of industrial gear units
Safety Notes
2.4 Transport of industrial gear units
Transport
eyebolts
Tighten screwed in transport eyebolts [1] firmly. They are only designed for the weight
of the industrial gear unit including the motor connected via motor adapter; do not attach
any additional loads.
•The main gear unit must only be lifted using lifting ropes or chains on the two
screwed in transport eyebolts on the main gear unit. The weight of the gear unit
is indicated on the nameplate or the dimension sheet. The loads and regula-
tions specified on the nameplate must always be observed.
•The length of the lifting chains or ropes must be dimensioned in such a way
that the angle between the chains or ropes does not exceed 45°.
•Eyebolts on the motor, auxiliary gear unit or primary gear unit must not be
used for transport (→ following figures)!
Vertical mounting position
(V) Upright mounting position (E) Horizontal mounting position (L
)
51375AXX
Figure 1: Positions of transport eyebolts
52086AXX
Figure 2: Do not use eyebolts on the motor for transport
[1]
[1]
[1]
[1]

10
Operating Instructions – Industrial Gear Units of the MC.. Series
2Transport of industrial gear units
Safety Notes
•Use suitable, sufficiently rated handling equipment if necessary. Before
startup, remove securing devices used for transport.
Transport of MC..
industrial gear
units with motor
adapter
Industrial gear units of the MC.P.. / MC.R.. series with motor adapter (→following
figure) must only be transported using lifting ropes/chains [2] or lifting belts [1] at
an angle of 90° (vertically) to 70°.
52112AXX
Figure 3: Do not use eyebolts on the motor for transport
52110AXX
Figure 4: Transport of industrial gear unit with motor adapter – Do not use eyebolts on the motor for transport
90°-70°
[1] [2]
<70°
[1]
[2]

Operating Instructions – Industrial Gear Units of the MC.. Series
11
2
Transport of industrial gear units
Safety Notes
Transport of MC..
industrial gear
units on a base
plate
Industrial gear units of the MC series on a base plate (→following figure) must only be
transported with the lifting ropes [1] or chains (angle 90°) vertically to the base plate:
Transport of MC..
industrial gear
units on a swing
base
Industrial gear units of the MC series on a swing base (→following figures) must only
be transported using lifting belts [1] and lifting ropes [2] at an angle of 90°
(vertically) to 70°.
51376AXX
Figure 5: Transport of MC.. industrial gears unit on a base plate
90°
90°
[1] [1]
52081AXX
Figure 6: Transport of MC.. industrial gear unit on a swing base
90°-70°
<70°
[1] [2] [1] [2]

12
Operating Instructions – Industrial Gear Units of the MC.. Series
2Transport of industrial gear units
Safety Notes
Transport of MC..
industrial gear
units with V-belt
drive
Industrial gear units of the MC series with V-belt drive must only be transported using
lifting belts [1] and lifting ropes [2] at an angle of 90° (vertically). The eyebolts on
the motor must not be used for transport.
52111AXX
Figure 7: Transport of MC.. with V-belt drive
[1] [1]
[2]
90°
90°
[1] [1]
[2]

Operating Instructions – Industrial Gear Units of the MC.. Series
13
2
Corrosion and surface protection
Safety Notes
2.5 Corrosion and surface protection
Introduction The corrosion and surface protection of gear units comprises the following three basic
features:
1. Painting system
• Standard painting system K7 E160/2
• High-resistant painting system K7 E260/3 as option
2. Gear unit corrosion protection with
• interior protection and
• exterior protection
3. Gear unit packing
• Standard packing (palette)
• Wooden box
• Seaworthy packing
Standard
painting system
K7 E 160/2
Painting is performed according to TEKNOS EPOXY SYSTEM K7, which is based on
the high-solid epoxy paint TEKNOPLAST HS 150.
Color shade: RAL 7031, blue gray
Guards and
shields
Powder coating, epoxy-based coat paint (EP) is used for guards and shields.
Layer thickness 65 µm
Color shade: TM 1310 PK, warning in yellow color
High-resistant
painting system
K7 E 260/3
Painting is performed according to TEKNOS EPOXY SYSTEM K7, which is based on
the high-solid epoxy paint TEKNOPLAST HS 150.
Optional color
shade
Other color shades are possible on request.
The information in this chapter is valid for MC units assembled in Europe. For other re-
gions, other painting systems might be applied. Please contact your local SEW-EURO-
DRIVE assembly center for MC.. units.
Two layer system K7 E 160/2 Thickness
• Epoxy primer 60 µm
• Teknoplast HS 150 100 µm
TOTAL 160 µm
Three-layer system, E 260/3 thickness
• Epoxy primer 60 µm
• Teknoplast HS 150 2x100 µm
TOTAL 260 µm

14
Operating Instructions – Industrial Gear Units of the MC.. Series
2Corrosion and surface protection
Safety Notes
Usage of painting
system
Storage and
transport
conditions
Industrial gear units of the MC.. series are delivered without oil fill. Different protection
systems are required depending on storage period and ambient conditions:
Standard
protection /
interior
• Gear units undergo a test run with oil. The oil is drained by SEW-EURODRIVE before
dispatch. The remaining layer of oil on the inner parts serves as basic protection.
Standard protec-
tion / exterior
• Oil seals and seal surfaces are protected by suitable grease.
• Unpainted surfaces (including spare parts) are covered with a protective coating.
Before other equipment is mounted to such surfaces, the protective coating must be
removed using a solvent.
• Small spare parts and loose pieces, such as screws, nuts, etc., are supplied in
corrosion protected plastic bags (VCI corrosion protection bag).
• Threaded holes and blind holes are covered by plastic plugs.
• The breather plug (position → chapter "Mounting Positions") is already installed.
Environmental
pollution None Low Medium High Very high
Typical environ-
mental conditions
Unheated build-
ings where con-
densation might
occur
Atmospheres with
low pollution,
mostly rural areas
Production rooms
with high level of
moistureand low
air pollution
City and industrial
atmospheres,
moderatepollution
with sulphur diox-
ide,
coastal areas with
low salt load
Industrial areas
and costal areas
with moderate salt
load
Chemical plants
Buildings or areas
with almost per-
manent condensa-
tion and high
pollution
Industrial areas
with very high lev-
els of moisture
and aggressive
atmospheres
Mounting Indoors Indoors Indoors or
outdoors Indoors or outdoors Indoors or outdoors
Relative humidity < 90 % up to 95 % up to 100 % up to 100 % up to 100 %
Recommended
painting system
Standard painting
system
K7 E160/2
Standard painting
system
K7 E160/2
Standard painting
system
K7 E160/2
High resistant paint-
ing system
K7 E260/3 Contact
SEW-EURODRIVE
Storage
period: up to
… months
Storage conditions
Gear unit corrosion protection Transport conditions Gear unit packing
OUTDOORS, roofed INDOORS, heated
(0…+20°C)
Storage area
close to sea OUT-
DOORS, roofed
Storage area
close to sea
INDOORS
Land
transport Sea transport
6Standard
protection Standard protection Contact SEW-EURODRIVE Long-term protection Standard packing Seaworthy packing
12 Contact
SEW-EURODRIVE Standard protection Contact SEW-EURODRIVE Long-term protection Standard packing Seaworthy packing
24 Long-term
protection Contact SEW-EURODRIVE Contact SEW-EURODRIVE Long-term protection Standard packing Seaworthy packing
36 Contact
SEW-EURODRIVE Long-term protection Contact SEW-EURODRIVE Long-term protection Standard packing Seaworthy packing

Operating Instructions – Industrial Gear Units of the MC.. Series
15
2
Corrosion and surface protection
Safety Notes
Standard protec-
tion / packing
Standard packing is used: The gear unit is delivered on a palette without cover
Long-term
protection /
interior
The following procedure is applied in addition to the "standard protection":
• A VPI solvent is sprayed through the oil filling hole
• The breather plug is replaced with a screw plug (before startup, the screw plug must
be replaced again by the breather plug, which is attached to the gear unit separately)
55871AXX
Figure 8: Standard protection / packing
•If the gear unit is stored longer than 6 months, it is recommended to regularly
check the protective coating of unpainted areas as well as the paint coat. Areas
with removed protection coating or paint have to be repainted, if necessary.
•The LSS must be rotated at least one turn in such a way that the position of the
roller elements in the bearings of LSS and HSS changes. This procedure has
to be repeated every 6 months until startup.
•Never open the gear unit near open flames, sparks and hot objects because
solvent vapors might be ignited.
•Take preventive measures to protect people from solvent vapors. It is abso-
lutely crucial that open flames are avoided when the solvent is applied and
when the solvent evaporates.

16
Operating Instructions – Industrial Gear Units of the MC.. Series
2Corrosion and surface protection
Safety Notes
Long-term
protection /
exterior
• Oil seals and seal surfaces are protected through suitable grease
• Unpainted surfaces (including spare parts) are covered with a protective coating.
Before other equipment is mounted to such surfaces, the protective coating must be
removed using a solvent.
• Small spare parts and loose pieces, such as screws, nuts, etc., are supplied in
corrosion protected plastic bags (VCI corrosion protection bag).
• Threaded holes and blind holes are covered by plastic plugs
• The breather plug (Position → chapter "Mounting Positions") is already installed.
Long-term pro-
tection / packing
• Seaworthy packing is used: The gear unit is packed in a seaworthy plywood box with
a wooden frame
Alternative
packing
Optionally, the gear unit can be supplied in a wooden box with standard gear unit
protection.
57585AXX
Figure 9: Long-term protection / packing
•If the gear unit is stored for longer than 6 months, it is recommended to
regularly check the protective coating of unpainted areas as well as the paint
coat. Areas with removed protection coating or paint have to be repainted, if
necessary.
•The LSS must be rotated at least one turn in such a way that the position of the
roller elements in the bearings of LSS and HSS changes. This procedure must
be repeated every 6 months until startup.
•The interior long-term protection with the VPI solvent has to be repeated every
24 / 36 months (according to the table "Storage and transport conditions") until
startup.

Operating Instructions – Industrial Gear Units of the MC.. Series
17
3
Basic design of industrial gear units of the MC..P.. series
Gear Unit Design
3 Gear Unit Design
3.1 Basic design of industrial gear units of the MC..P.. series
The following illustrations serve to explain the general design. Their only purpose is to
facilitate the assignment of components to the spare parts lists. Discrepancies are
possible depending on gear unit size and version!
51718AXX
Figure 10: Basic design of industrial gear units of the MC..P.. series
[001] Gear unit housing [131] Key [299] Gear wheel [410] Bearing
[010] Bearing cover [180] Oil seal [301] Pinion shaft [411] Bearing
[015] Bearing cover [195] Shim [310] Bearing [430] Key
[025] Bearing cover [199] Output gear wheel [331] Key [434] Cover
[040] Bearing cover [201] Pinion shaft [340] Distance bushing [438] Bushing
[070] Housing cover [210] Bearing [342] Distance bushing [443] Distance bushing
[075] Assembly cover [231] Key [395] Shim [480] Oil seal
[100] Output shaft [242] Distance piece [399] Gear wheel [495] Shim
[110] Bearing [243] Distance piece [401] Input shaft [725] Lifting eyebolt
[130] Key [295] Shim
[015]
[195]
[110]
[131]
[130]
[100]
[040]
[231]
[201]
[210]
[295]
[242]
[342]
[434] [395]
[310]
[340]
[438]
[480]
[495]
[411]
[401]
[430]
[070]
[199]
[725]
[299]
[110]
[180]
[195]
[010]
[295]
[210]
[243] [025]
[342]
[395]
[310]
[331]
[301]
[399] [443]
[410] [495 ]
[001]
[725]
MC2P..
[075]

18
Operating Instructions – Industrial Gear Units of the MC.. Series
3Basic design of industrial gear units of the MC..R.. series
Gear Unit Design
3.2 Basic design of industrial gear units of the MC..R.. series
51399AXX
Figure 11: Basic design of industrial gear units of the MC..R.. series
[001] Gear unit housing [131] Key [299] Gear wheel [410] Bearing
[010] Bearing cover [180] Oil seal [301] Pinion [411] Bearing
[015] Bearing cover [195] Shim [310] Bearing [422] Bearing bushing
[025] Bearing cover [199] Output gear wheel [331] Key [423] Bearing bushing
[040] Cover [201] Pinion shaft [340] Distance bushing [430] Key
[070] Housing cover [210] Bearing [341] Distance bushing [436] Sleeve
[080] Bearing cover [231] Key [342] Distance bushing [470] Tightening nut
[100] Output shaft [242 ]Distance bushing [395] Shim [480] Oil seal
[110] Bearing [243] Distance bushing [399] Bevel gear [495] Shim
[130] Key [295] Shim [401] Bevel pinion shaft [725] Lifting eyebolt
[015]
[195]
[110]
[070]
[199]
[725]
[299]
[110]
[180]
[195]
[010]
[725]
[231]
[201]
[210]
[295]
[242]
[342]
[395]
[310]
[025]
[342] [25]
[395]
[310]
[295]
[210]
[243]
[331]
[301]
[340]
[341]
[399]
[040]
[480]
[423]
[080]
[436]
[470]
[411]
[495]
[410]
[401]
[001]
[422]
[430]
[131]
[100]

Operating Instructions – Industrial Gear Units of the MC.. Series
19
3
Unit designation / nameplates
Gear Unit Design
3.3 Unit designation / nameplates
Sample unit designation
MC 2 R L S F 05
Size: 02 ... 09
Gear unit mounting:
F = Foot mounting
T = Torque arm
Low speed shaft type (LSS):
S = Solid shaft
H = Hollow shaft (key or shrink disc connection)
Gear unit design:
L = Horizontal
V = Vertical
E = Upright
Gear unit type:
R = Bevel-helical gear unit
P = Helical gear unit
Number of gear stages:
2 = Two stages
3 = Three stages
Industrial gear unit series

20
Operating Instructions – Industrial Gear Units of the MC.. Series
3Unit designation / nameplates
Gear Unit Design
Example: Nameplate of the MC.. series industrial gear unit, SEW-EURODRIVE
57523AXX
SEW-EURODRIVE
SEW-EURODRIVE
Bruchsal / Germany
Type
Nr. 1
PK1
norm. min. max.
MK2
n1
n2
Operation instructione have to be observed!
Made by
Nr. 2
i
FS
FR1
FR2
FA1
1 :
[kN]
[kN]
[kN]
[kN]
FA2
[kg]
Year
Mass
[kW]
[kNm]
[1/min]
[1/min]
Lubricant
Qty of greasing points Fans
MC3RLSF02
16.5
2.04
1500
73.8
16.5
2.04
1500
73.8
16.5
2.04
1500
73.8
SEW -Finland
2
Mineral Oil ISO VG 460 EPPAO - 7 ltr. 2003
219
0
0
0
0
3.64
20.3123
K3463
03 30764647
0
Typ Unit designation
Nr. 1 Serial number 1: Eurodrive order number (e.g. SAP-order number)
Nr. 2 Serial Number 2: (factory / assembly center manufacturing number)
PK1
norm. [kW] Running power on gear unit input @ n1norm.
min. Running power on gear unit output @ n1min.
max Running power on gear unit output @ n1max.
MK2
norm. [kNm] Running torque on gear unit output @ n1norm.
min. Running torque on gear unit output @ n1min.
max Running torque on gear unit output @ n1max.
n1
norm. [1/min] Input speed (HSS)
min. Minimum existing input speed (HSS)
max Maximum existing input speed (HSS)
n2
norm. [1/min] Output speed (LSS)
min. Minimum existing output speed (LSS)
max Maximum existing output speed (LSS)
Made by Location of gear unit assembly / manufacturing
norm. normal operation point
min. minimum operation point
max. maximum operation point
i Exact gear unit reduction ratio
FSService factor
FR1 [kN] Existing radial load on HSS
FR2 [kN] Existing radial load on LSS
FA1 [kN] Existing axial load on HSS
FA2 [kN] Existing axial load on LSS
Mass [kg] Gear unit weight