Voith CH Series, R Series, S Series, E Series Instruction Manual

High-performance Universal Joint Shafts
including ATEX certification
Series: S, R, CH, E
Instruction manual (Translation) G853 en 07/2013, Version 1
J.M. Voith SE & Co. KG/VTA | Instruction Manual
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Instruction manual (Translation)
Publisher
Document number
Date of issue
Copyright
If you have questions regarding the product, please contact us specifying the serial number and parts list number:
J.M. Voith SE & Co. KG/VTA Universal Joint Shafts Alexanderstr. 2 89522 Heidenheim, Germany
Additional contact information: Telephone + Fax E-Mail Web
49 7321 37-8283 +49 7321 37-7106 UJShafts@Voith.com www.voith.com
J. M. Voith SE & Co. KG/VTA Universal Joint Shafts Alexanderstr. 2 89522 Heidenheim, Germany E-Mail: UJShafts@Voith.com
G853 en 07/2013 Version 1 July 16, 2013 © 2013, J. M. Voith SE & Co. KG/VTA This documentation including all of its parts is protected by copyright. Any use or change outside of the narrow boundaries of copyright law is not permitted without the agreement of J.M. Voith SE & Co. KG/VTA and is punishable by law. This applies especially to copying, translations, microfilming, and the saving and processing on electronic systems.
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Instruction manual (Translation)
Table of contents
Contents
1 About this instruction manual .....................................................................................7
1.1 Target groups ................................................................................................................ 7
1.2 Product observation ..................................................................................................... 7
1.3 Other applicable documents ....................................................................................... 8
1.4 Additional documents .................................................................................................. 9
1.5 Symbols and markings..................................
.............................................................10
1.6 Warning ........................................................................................................................11
1.6.1 Levels of danger ...........................................................................................................11
1.6.2 Safety symbols ..............................................................................................................12
2 Basic Safety Information ........................................................................................... 13
2.1 Product safety .............................................................................................................13
2.2 Proper use ...................................................................................................................13
2.3 Remaining risks ..........................................................................................................14
2.4 Safety information for the operator ..........................................................................15
2.5 Safety information for the personnel ........................................................................17
2.6 Personal protective equipment .................................................................................21
2.7 Spare parts ..................................................................................................................21
3 High-performance Universal Joint Shafts ..............
................................................. 22
3.1 Structure ......................................................................................................................22
3.2 Application ..................................................................................................................25
3.3 Series ...........................................................................................................................26
3.3.1 Type designations .........................................................................................................26
3.3.2 S Series ........................................................................................................................27
3.3.3 R Series ........................................................................................................................27
3.3.4 CH Series ......................................................................................................................28
3.3.5 E Series ........................................................................................................................28
4 Packaging, transport ................................................................................................. 29
4.1 Packaging ....................................................................................................................29
4.2 Unpacking the universal joint shaft and checking the delivery .............................29
4.3 Lifting, transporting, setting down the universal join
t shaft ..................................30
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5 Storage and preservation ......................................................................................... 33
5.1 Storing the universal joint shaft ................................................................................33
5.2 Preserving the universal joint shaft ..........................................................................34
6 Installation .................................................................................................................. 35
6.1 Additional regulations for flange bolted connections ............................................35
6.1.1 Requirements of connecting flange and bolted connections .........................................35
6.1.2 Checking bolted connections and tightened parts .......
.................................................41
6.2 Installing the universal joint shaft .............................................................................42
6.2.1 Removing preservation .................................................................................................44
6.2.2 Transport universal joint shaft to the installation location .............................................44
6.2.3 Cleaning the universal joint shaft and connecting flange .............................................45
6.2.4 Checking, aligning, and fastening connecting flange ...................................................45
6.2.5 Checking the differential angle of the front faces of the connecting flange (with Z
arrangement) ................................................................................................................46
6.2.6 Checking the differential angle of the front faces of the connecting flange (with
W arrangement) ............................................................................................................47
6.2.7 Bolting together the universal joint shaft and the connecting flange ............................47
6.2.8 Final work ......................................................................................................................48
6.3 Additional regulations for Hirth serration ................................................................49
6.4 Additional regulations for use in paper machines ..................................................50
7 Commissioning and operation ................................................................................. 51
7.1 Commissioning the universal joint shaft ...............
..................................................51
7.2 Operating the universal joint shaft ...........................................................................52
8 Eliminating errors ...................................................................................................... 53
9 Maintenance ............................................................................................................... 55
9.1 General notes about the maintenance and inspection of universal joint shafts .56
9.2 Intervals for maintenance and inspections ..............................................................57
9.3 Inspections ..................................................................................................................58
9.3.1 Checking axial clearance of the journal cross set ........................................................58
9.3.2 Checking deflection play of the center part...................................................................59
9.4 Lubrication ..................................................................................................................61
9.4.1 Lubricants .....................................................................................................................61
9.4.2 Lubricating the universal joint shaft .................
.............................................................61
9.5 Main overhaul ..............................................................................................................64
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Instruction manual (Translation)
Table of contents
9.6 Life span of ATEX universal joint shafts ..................................................................64
10 Removal ...................................................................................................................... 65
11 Repair .......................................................................................................................... 67
12 Disposal ...................................................................................................................... 67
13 Declaration of incorporation ........................
............................................................. 68
14 Declaration of conformity ......................................................................................... 69
15 Index ............................................................................................................................ 70
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List of figures
Table index
J.M. Voith SE Co. KG/VTA| Instruction Manual
Fig. 3.1: Structure of the universal joint shaft (example of type
RT) ............................................................................ 22
Fig. 3.2: Nameplate of an ATEX-certified universal joint shaft 23
Fig. 3.3: Schematic structure of temperature monitoring ....... 24
Fig. 3.4: Z arrangement .......................................................... 25
Fig. 3.5: W arrangement ......................................................... 25
Fig. 4.1: Attaching the universal joint shaft ............................. 32
Fig. 6.1: Dimensions of the connecting flange and bolted
connections ............................................................... 36
Fig. 6.2: Dimensions of a stud screw ..........................
............ 41
Fig. 6.3: Universal joint shaft .................................................. 44
Fig. 6.4: Checking the difference in joint angle between the
faces of the connecting flanges ................................ 46
Fig. 6.5: Permissible differential angle (with Z arrangement) . 46
Fig. 6.6: Seals for Hirth serration ............................................ 49
Fig. 6.7: Checking radial offset and flange distance (with use in
paper machines) ....................................................... 50
Fig. 9.1: Checking axial clearance of the journal cross set on
two levels .................................................................. 58
Fig. 9.2: Checking deflection play of the center part .............. 59
Fig. 9.3: Reading off deflection dimension ............................. 60
Fig. 9.4: Lubrication points of the universal joint shaft ........... 62
Tab. 1.1: Target groups ............................................................. 7
Tab. 1.2: Other applicable documents ....................................... 9
Tab. 1.3: Symbols and markings ............................................. 10
Tab. 1.4: Meaning of the danger levels ................................... 11
Tab. 1.5: Meaning of the safety symbols .......................
.......... 12
Tab. 2.1: Personal protective equipment ................................. 21
Tab. 6.1: Dimensions of the connecting flange and bolted
connections (key) ....................................................... 37
Tab. 6.2: Dimensions of the connecting flange and bolted
connections ............................................................... 40
Tab. 6.3: Permissible differential angle (with Z arrangement) . 46 Tab. 6.4: Permissible differential angle (with W arrangement) 47 Tab. 6.5: Permissible radial offset and flange distance (for use
in paper machines) ................................................... 50
Tab. 8.1: Eliminating errors ...................................................... 54
Tab. 9.1: Intervals for maintenance work and inspections ...... 58
Tab. 9.2: Checking axial clearance of the journal cross set .... 59
Tab. 9.3: Permissible deflection ratio....................................... 60
Tab. 9.4: Permissible lubricant quantity for the re-lubrication of
standard center parts. ............................................... 64
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J.M. Voith SE & Co. KG/VTA | Instruction Manual
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Instruction manual (Translation)
Target group
Task
About this instruction manual

1 About this instruction manual

Before you use the universal joint shaft, you must read this instruction manually carefully and understand it.
This instruction manual is part of the product and familiarizes you with the basic work on the universal joint shaft – from installation to disposal.
It contains information about the safe and proper use of the universal joint shaft.

1.1 Target groups

Operator Keep this instruction manual accessible to personnel at all
times.
Make sure that employees read and heed the instruction
manual and the other applicable documents, especially the basic safety instructions and warnings.
Specialized personnel, service engineer

1.2 Product observation

Heed additional system-related details and regulations. Read, heed, and follow this instruction manual and the other
applicable documents, especially the basic safety instructions and warnings.
Tab. 1.1: Target groups
We are under legal obligation to observe our products, even after
ipment.
sh
Therefore, please inform us about anything that might be of
interest, e.g.:
Change in operating data
Experience gained with the universal joint shaft
Recurring problems
Damage to the universal joint shaft
Problems with the instruction manual
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About this instruction manual
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Instruction manual (Translation)
Document
Information
Source

1.3 Other applicable documents

Documents for all designs
J.M. Voith SE & Co. KG/VTA| Instruction Manual
System documentation System-specific information
about the removal and installation of the universal joint shaft.
Dimensional drawing of the universal joint shaft
Dimensions of the connection flange.
Tightening torques of the bolted connections of the flange connections.
Weight of the universal joint shaft.
Shortest and maximum permissible length of the universal joint shaft.
Delivery note Weight of the universal joint
shaft
Repair instructions for the respective designs and sizes
For the manufacturer's authorized service personnel:
Information about repair of the universal joint shaft
Operator
J.M. Voith SE & Co. KG/VTA
J.M. Voith SE & Co. KG/VTA
J.M. Voith SE & Co. KG/VTA
Balancing instruction For the manufacturer's authorized
service personnel:
Information about the balancing of the universal joint shaft
Documents for special designs
Mounting and dismounting instructions for split flange yokes
For designs with split flange yokes:
Information about installing and removing the universal joint shaft
Mounting and dismounting instructions for tripod center parts
For designs withtripod center parts:
Information about installing and removing the universal joint shaft
Mounting and dismounting instructions for spring-mounted center parts
For designs with spring-mounted center part:
Information about installing and removing the universal joint shaft
J.M. Voith SE & Co. KG/VTA
J.M. Voith SE & Co. KG/VTA
J.M. Voith SE & Co. KG/VTA
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J.M. Voith SE & Co. KG | Instruction Manual
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Instruction manual (Translation)
About this instruction manual
Mounting and dismounting instructions for hydraulically­movable center parts
Mounting and dismounting instructions for deflection brakes
Mounting and dismounting instructions for shaft angle limiters
Mounting and dismounting instructions for quick-release couplings
For designs with hydraulic center part:
Information about installing and removing the universal joint shaft
For designs with deflection brake:
Information about installing and removing the universal joint shaft
For designs with shaft angle limitation:
Information about installing and removing the universal joint shaft
For designs with quick-release coupling:
Information about installing and removing the universal joint shaft
Tab. 1.2: Other applicable documents
J.M. Voith SE & Co. KG/VTA
J.M. Voith SE & Co. KG/VTA
J.M. Voith SE & Co. KG/VTA
J.M. Voith SE & Co. KG/VTA

1.4 Additional documents

For additional information about the universal joint shafts, please see the following documents:
High-performance universal joint shafts catalogue
General delivery conditions
Hirth serrations
Order from: UJShafts@Voith.com
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About this instruction manual
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Instruction manual (Translation)
Symbol
Meani
ng

1.5 Symbols and markings

Symbols and markings are used in this instruction manual in order to allow you quick access to information.
J.M. Voith SE & Co. KG /VTA| Instruction Manual
Note about the effective use of the universal joint shaft and this instruction manual
Note for ATEX certified universal joint shafts
1.
Action with several steps, whose sequence is relevant
2.
3.
Action with one step –or– Action with several steps, whose sequence is not
relevant
Prerequisite
List (first level)
List (second level)
Cross-reference to additional information
Tab. 1.3: Symbols and markings
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J.M. Voith SE & Co. KG/VTA | Instruction Manual
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Instruction manual (Translation)
Level of danger
Likelihood of occurrence
Consequences if not heeded
DANGER
WARNING
CAUTION

1.6 Warning

For your safety, warnings are used in this instruction manual. The warnings are next to the appropriate action instruction.
Depending on the likelihood of occurrence and consequences if the instructions are not heeded, various danger levels are used. The warnings are indicated with safety symbols, which depict the type of danger visually.
1.6.1 Levels of danger
Imminent danger Death, severe bodily harm Possible imminent danger Death, severe bodily harm
About this instruction manual
Possible imminent danger Slight bodily harm
Tab. 1.4: Meaning of the danger levels
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About this instruction manual
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Instruction manual (Translation)
Safety symbols
Warning about
1.6.2 Safety symbols
J.M. Voith SE & Co. KG/VTA | Instruction Manual
General dangers The type of danger is described in more
detail in the warning.
ushing
Cr
Hand injuries
Slipping
Rotating parts
Falling parts
Suspended loads
Flammable materials
Acidic materials
Poisonous materials
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nger of explosion
Da
Tab. 1.5: Meaning of the safety symbols
J.M. Voith SE & Co. KG/VTA | Instruction Manual
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Instruction manual (Translation)
Foreseeable misuse

2 Basic Safety Information

Please heed the following safety information before engaging
in any activities.

2.1 Product safety

The universal joint shaft has been developed and built according to
he state of technology as well as the applicable safety regulations
t at the time it was put on the market.
Nevertheless, its use can result in danger to life and limb of the user or damage to the universal joint shaft itself and other property.
Only install the universal joint shaft if it is in proper condition
and only for the designated use, in a safety-conscious manner that complies with the instruction manual.
Basic Safety Information

2.2 Proper use

Immediately correct (or have corrected) any defects that
adversely affect safety.
Universal joint shafts transmit torques between defined drive and machine components. Therefore, the universal joint shaft is intended for installation in the specific machine/system for which it was selected.
Any other use, especially installation in other machines, is not proper and forbidden.
Voith universal joint shafts are not approved for use in the food industry.
In liquid media, universal joint shafts may only be used with written permission of the manufacturer.
The universal joint shaft type we make and size can only be regarded as recommendations.
Any improper use or activities on the universal joint shafts not described in this instruction manual are impermissible misuse outside of the legal liability limits of the manufacturer.
Heed the following measures to avoid misuse:
nly operate the universal joint shaft within the specified
O
speed and torque range.
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Basic Safety Information
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Instruction manual (Translation)
J.M. Voith SE & Co. KG/VTA | Instruction Manual
Universal joint shafts are resiliently-flexible bodies that are
designed for bending vibrations and bending-critical speeds. Therefore, for safety reasons, the maximum operating speed must be significantly below the critical-bending speed 1st and 2nd order (see universal joint catalog G830).
For sufficient balance and security for the universal joint
shaft, it must be ensured that the operating speed does not exceed the maximum permissible value depending on the shaft angle (see universal joint catalog G830) and that the driving and driven system parts are aligned with one another (plan and concentric run-out see page 40)
Do not exceed permissible shaft angles of the universal joint
shaft.
Adhere to the lengths and temperatures specified for the
selection of the universal joint shaft.
For universal joint shafts with length compensation, make
sure that the maximum permissible movement path is not exceeded.

2.3 Remaining risks

A local heating of the universal joint shaft, e.g. due to the
burning off of old color remnants is not permissible in order to change the run-out properties.
Protect components coated with Rilsan against too-high
temperatures, chemical solvents, steam, and mechanical damage.
Attaching parts to the universal joint shaft by welding or other
connection types is not permissible.
Adhere to the manufacturer's specifications with respect to
operation, maintenance, and repairs.
Have work on universal joint shafts done by the manufacturer
or by service technicians authorized by the manufacturer.
Do not make any unauthorized modifications or changes.
In areas subject to explosion (atmosphere), only use ATEX­certified universal joint shafts. Here, heed certification ( Chapter
3.1, page 22).
Before beginning construction and planning, the remaining risks of the
niversal joint shaft were analyzed and evaluated.
u
Remaining risks that could not be avoided during the entire life cycle of the universal joint shafts are:
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Instruction manual (Translation)
Safety
-
conscious working
Risk of death and injury due to
Misuse
Improper handling
Improper transport
Missing protection systems
Defective or damaged mechanical parts
Environmental hazard, e.g. due to
Improper handling of preserving agents and lubricants
Property damage to the universal joint shaft due to
Improper handling
Hazardous environmental influences, application
Operating specifications not adhered to
Unsuitable operating materials (e.g. bearing grease)
Property damage to other assets due to improper handling
Basic Safety Information
conditions
Performance or functional limitations due to
Improper handling
Improper maintenance or repair
Subsequent damage due to overload
Avoid existing remaining risks with the practical imp heeding of the following specifications:
Basic safety instructions and warnings in this instruction manual
Work instructions from the operator
Technical data for the system ( system documentation)

2.4 Safety information for the operator

The operator must take appropriate safety precautions in
order to prevent the endangering of people and materials due to rotating universal joint shafts and their parts.
For the operation of the universal joint shaft within a machine,
the EU machine directive must be heeded.
Ensure adherence and monitoring:
lementation and
Of proper use
Of laws and regulations for accident prevention and
environmental protection
Of safety regulations for the handling of hazardous materials
Of applicable standards and guidelines for the country of operation
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Basic Safety Information
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Organizational measures
Selection and qualification of
J.M. Voith SE & Co. KG/VTA | Instruction Manual
Make protective equipment available ( Chapter 2.6, page
21).
For telescopic lengths without profile guard: provide guard in
the system.
Keep this instruction manual and all applicable documents
accessible to personnel at all times.
Specify responsibilities of the personnel clearly and monitor
adherence.
staff
All activities on the universal joint shaft may only
be performed by
authorized personnel.
Ensure that the staff members
are at least 18 years old.
have read and understood the "Basic safety information"
chapter.
can apply and implement the contents of the "Basic safety instructions" chapter.
have the bodily and mental abilities to perform their responsibilities, tasks, and activities on the universal joint shaft.
are trained according to their responsibilities, tasks, and activities on the universal joint shaft.
have understood and can practically implement the technical documentation with respect to their responsibilities, tasks, and activities on the universal joint shaft.
is familiar with and can apply the components of the system and their function.
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is familiar according to his responsibilities with the instructions for cleaning, preserving, lubricating, and using hazardous materials and taking first aid measures in case of accidents.
J.M. Voith SE & Co. KG/VTA | Instruction Manual
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Instruction manual (Translation)
Warranty
Safety
-
conscious wo
rking
The warranty is voided in case of any change to the universal
joint shaft without our written permission.
During the warranty, obtain the manufacturer's permission
before making repairs to the universal joint shaft.
Only use original parts or parts approved by the
manufacturer.

2.5 Safety information for the personnel

The consumption of alcohol, drugs, medications or other mind-
ltering substances is forbidden.
a
Protect universal joint shaft against unauthorized operation. Adhere to applicable accident prevention regulations. If necessary or required by regulations, wear personal
protective equipment ( Chapter 2.6, page 21).
Basic Safety Information
Keep unauthorized personnel out of the danger area of the
universal joint shaft.
Keep safety and notice signs on the universal joint shaft in
easily-legible condition, e.g. lubrication points.
Follow the supervisor or safety officer's safety and work
instructions.
Only linger in the workplaces provided in the danger area
( system documentation).
Do not make any constructional changes to the universal joint
haft.
s
Handle hazardous materials according to the safety data
sheets. Heed safety measures and wear personal protective equipment.
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Basic Safety Information
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Instruction manual (Translation)
Lifting, transport, setting down
Pr
eservation
installation
J.M. Voith SE & Co. KG /VTA| Instruction Manual
Depending on the design, universal joint shafts can weigh up to 80 tons.
Heed weight ( Delivery note/Dimensional drawing of the
universal joint shaft).
Only lift and transport universal joint shafts with sufficiently-
dimensioned transport equipment ( Fig. 4.1, page 32).
Heed common attachment regulations. Do not load profile guard. Heed the center of gravity (hoist axis). Only store universal joint shafts
on floors with sufficient load capacity
on suitable bases
Secure universal joint shaft against rolling away.
Only transport universal joint shaft in areas not subject to explosion (atmosphere).
Unsecured universal joints can tip during lifting, tr
ansport, setting
down.
Secure universal joints against tipping, e.g. with a suitable
rope or wedge.
Never reach between the universal joint, even if there is a
deflection guard present.
For telescopic lengths: an unsecured telescoping part
can be
pulled apart when lifting, transporting or setting down.
Secure telescoping part against being pulled apart, e.g. with
a suitable rope.
Cleansers and anti-corrosion agents are usually flammable in their liquid form.
Ensure sufficient ventilation. Prevent direct bodily contact and inhalation. Heed the manufacturer's safety data sheets.
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Heed additional regulations for flange bolted connections
( Chapter 6.1, page 35).
Heed safety instructions for lifting, transport, setting down. Secure drive against starting up.
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Instruction manual (Translation)
Commissioning and operation
Keep personnel who are not participating away, e.g. using
supervisory personnel, enclosures, fences.
Only install universal joint shaft in areas not subject to explosion (atmosphere).
For specially-designed universal joint shafts, improper installation and removal can cause severe injuries or even death.
Heed and if necessary order additional documentation
( Chapter 1.3, page 8).
Only put a completely functional and safe universal joint
shaft/system into operation.
Before commissioning, remove deflection and transport
braces.
Before commissioning, check tightening torques and null
markings.
Basic Safety Information
Only operate universal joint shaft with appropriate guards
( system documentation).
For telescopic lengths: protect gearing of the telescopic parts
against dirt and foreign bodies.
In case of changed operating state and faults, take the
universal joint shaft out of commission immediately. Report changed operating states and faults to the responsible office/person immediately.
Do not perform cleaning work when operation is ongoing. If it is not possible to prevent people from lingering in the
danger radius of the universal joint shaft while it is in operation, special safety measures must be taken in case of a universal joint shaft break.
If there can be blockages or collisions with resulting personal
injury as a result of a universal joint break in the case of mobile drives, appropriate arresting devices must be provided for the universal joint shafts.
In case of ATEX-certified universal joint shafts, it must be ensured that
The surface temperature in the field of joint bearings not
exceed 140°C.
Voith recommends at both joints, to attach a temperature
monitoring in the field of the joint bearings.
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Basic Safety Information
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Instruction manual (Translation)
Maintenance work and
Repair
Decommissioning
Removal
Disposal
J.M. Voith SE & Co. KG/VTA | Instruction Manual
inspections
The operator's service personnel may only perform the maintenance work and inspections described in this instruction manual. Other maintenance work (especially overhauls) may only be performed by the manufacturer's service personnel or personnel authorized by the manufacturer.
Observe specified intervals ( Chapter 9.2, page 57). Do not perform any maintenance work or inspections during
ongoing operation.
Before maintenance and inspection work, secure the drive
against starting up.
Do not remove any safety equipment as long as the universal
joint shaft/system is not standing still and secured against starting up again.
When the universal joint shaft is standing still, do not load it
with high lifting or attachment forces and do not place any objects on the universal joint shaft or hang or attach anything to it.
Before reattaching the universal joint shaft/system, reattach
all safety equipment.
The universal joint shaft must be checked regularly for
changed running noises and vibrations.
Repairs may only be made by the manufacturer's servic
e
personnel or personnel authorized by the manufacturer.
Only make repairs after consultation with the manufacturer. Do not make any repairs when operation is ongoing.
Only repair universal joint shaft in areas not subject to explosion (atmosphere).
See system documentation
See repair instructions/system documentation
ly remove universal joint shaft in areas not subject to explosion
On (atmosphere).
Dispose of packaging material according to the applicable
regulations in the place of use.
Dispose of operating and hazardous materials separately
according to the locally-applicable regulations. Heed the manufacturer's safety data sheets.
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Activity
Protective equipment

2.6 Personal protective equipment

Heed additional notices in the system documentation. Heed additional operator-side regulations. In order to prevent injuries, wear personal protective
equipment according to the following table:
Re-installation Safety helmet
Basic Safety Information
Safety shoes with slip-proof, oil-resistant soles
Protective gloves
Fall protection
Safety glasses
Commissioning and operation
Closely-fitting clothing
Ear protection
Safety shoes with slip-proof, oil-resistant
soles
Safety glasses
Transport Safety helmet
Safety shoes with slip-proof, oil-resistant soles
Safety glasses
Preservation Safety glasses
Protective gloves
Maintenance Safety helmet
Protective gloves
Safety shoes with slip-proof, oil-resistant
soles
Fall protection
Safety glasses
Tab. 2.1: Personal protective equipment

2.7 Spare parts

Spare parts must meet the technical specifications of the manufacturer. Same is guaranteed if original parts are used, as these are subject to a regular quality control. Spare parts from other suppliers may, in some cases, change the characteristics of the machine and result in substantial defects, for which Voith cannot assume any responsibility.
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High-performance Universal Joint Shafts
High
Instruction manual (Translation)
Link head
Journal cross set
Flange yoke
Telescopic length with
J.M. Voith SE & Co. KG/VTA | Instruction Manual

3 High-performance Universal Joint Shafts

3.1 Structure

standard center part
Fig. 3.1: Structure of the universal joint shaft (example of type RT)
The link head consists of:
an integral flange yoke –or– a semi-integral flange yoke
A journal cross set constits of:
a journal cross
four bearing units
The flange yokes depend on the universal joint shaft type ( Chapter 3.3, page 26).
Depending on the size, the telescopic length is eithe
r equipped with an involute profile or a diameter-centered SAE profile with length compensation.
The involute profile can optionally be provided with a low­maintenance Rilsan® plastic coating.
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