KTR Bellhousings Operating/Mounting Instructions

KTR Bellhousings are connecting elements between electric motors and hydraulic pumps. They are available in various materials including aluminum, cast iron, nylon, and steel. These durable components are designed for reliable operation in diverse applications and are suitable for various pump and motor sizes. Ensure proper storage, transport, and assembly to ensure optimal performance and longevity.

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Bellhousing
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
41010 EN
1 of 6
8
The bellhousing is a connecting element between electric motor and hydraulic pump. The
bellhousings are made of the materials aluminium, cast iron, nylon and steel.
Table of contents
1
2
3
Advice
2
1.1
1.2
1.3
1.4
General advice
Safety and advice symbols
General hazard warnings
Intended use
2
2
2
2
Storage, transport and packaging
3
2.1
2.2
3
3
Storage
Transport and packaging
Assembly
3
3.1
3.2
3
4
Components of bellhousing
Assembly of bellhousing
4
Disposal
6
5
Spares inventory, customer service addresses
6
Please observe protection
note ISO 16016.
Drawn:
Verified:
2019-07-16 Pz/Bet
2019-07-17 Pz
Replacing:
Replaced by:
KTR-N dated 2018-03-23
Bellhousing
Operating/Assembly instructions
1
KTR-N
Sheet:
Edition:
41010 EN
2 of 6
8
Advice
1.1 General advice
Please read through these operating/assembly instructions carefully before you start up the bellhousing.
Please pay special attention to the safety instructions!
The operating/assembly instructions are part of your product. Please store them carefully and close to the
bellhousing.
The copyright for these operating/assembly instructions remains with KTR.
1.2 Safety and advice symbols
STOP
!

Warning of personal injury
This symbol indicates notes which may contribute to
preventing bodily injuries or serious bodily injuries that
may result in death.
Warning of product damages
This symbol indicates notes which may contribute to
preventing material or machine damage.
General advice
This symbol indicates notes which may contribute to
preventing adverse results or conditions.
1.3 General hazard warnings
STOP
With assembly and disassembly of the bellhousing it has to be made sure that the entire
drive train is secured against accidental switch-on. You may be seriously hurt by rotating
parts. Please make absolutely sure to read through and observe the following safety
indications.
• All operations on and with the bellhousing have to be performed taking into account &quot;safety first&quot;.
• Please make sure to switch off the power pack before you perform your work on the bellhousing.
• Secure the power pack against accidental switch-on, e. g. by providing warning signs at the place of switch-on
or removing the fuse for current supply.
• Do not reach into the operation area of the machine as long as it is in operation.
• Please secure the rotating drive components against accidental contact. Please provide for the necessary
protection devices and covers.
1.4 Intended use
You may only assemble and disassemble the bellhousing if you
• have carefully read through the operating/assembly instructions and understood them
• had technical training
• are authorized by your company
The bellhousing may only be used in accordance with the technical data (see catalogue of hydraulic
components). Unauthorized modifications on the bellhousing are not admissible. We will not assume liability for
any damage that may arise. In the interest of further development we reserve the right for technical modifications.
The bellhousing described in here corresponds to the technical status at the time of printing of these
operating/assembly instructions.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2019-07-16 Pz/Bet
2019-07-17 Pz
Replacing:
Replaced by:
KTR-N dated 2018-03-23
Bellhousing
Operating/Assembly instructions
2
KTR-N
Sheet:
Edition:
41010 EN
3 of 6
8
Storage, transport and packaging
2.1 Storage
The bellhousings (except for those made of the material aluminium) are supplied in preserved condition and can
be stored in a roofed, dry place during 6 - 9 months.
The storage rooms must not include any ozone-generating devices like e. g. fluorescent
light sources, mercury-vapour lamps or electrical high-voltage appliances.
Humid storage rooms are not suitable.
Please make sure that condensation is not generated. The best relative air humidity is less
than 65 %.
!
2.2 Transport and packaging
In order to avoid any injuries and any kind of damage always make use of proper transport
and lifting equipment.
!
The bellhousings are packed differently each depending on size, number and kind of transport. Unless otherwise
contractually agreed, packaging will follow the in-house packaging specifications of KTR.
3
Assembly
The bellhousing is supplied ready for assembly.
3.1 Components of bellhousing
Component
Number
1
1
2
1
Description
bellhousings made of aluminium, cast iron or steel
bellhousings made of nylon with pump mounting flange made of
aluminium
Illustration 1: Bellhousing
Please observe protection
note ISO 16016.
Drawn:
Verified:
Illustration 2: Bellhousings made of nylon
2019-07-16 Pz/Bet
2019-07-17 Pz
Replacing:
Replaced by:
KTR-N dated 2018-03-23
Bellhousing
Operating/Assembly instructions
3
KTR-N
Sheet:
Edition:
41010 EN
4 of 6
8
Assembly
3.2 Assembly of bellhousing
• The bellhousing will be fitted on the engine centering / pump centering (see illustration 3) and screwed. To fix
the bellhousing to the engine please only use the respective tappings.
!
The screws between the nylon housing and the pump mounting flange made of aluminium
must not be unscrewed on the nylon bellhousings (misalignment).
Illustration 3: Assembly of electric motor or pump with bellhousing
• The screw length must be selected such that at least the complete length of the thread in the bellhousing is
used. For screw tightening torques please refer to the following tables 1, 2 and 3.
• If the bellhousing is connected with a foot flange, the length of the screws to fix the engine in the area of the
foot flange must be selected such that they project through the foot flange and can be screwed with a nut (see
illustration 4).
Illustration 4: Assembly of electric motor or pump with bellhousing and foot flange
Please observe protection
note ISO 16016.
Drawn:
Verified:
2019-07-16 Pz/Bet
2019-07-17 Pz
Replacing:
Replaced by:
KTR-N dated 2018-03-23
KTR-N
Sheet:
Edition:
Bellhousing
Operating/Assembly instructions
3
41010 EN
5 of 6
8
Assembly
3.2 Assembly of bellhousing
Continuation:
Table 1: Tightening torques of bellhousings made of aluminium and nylon
Cap screws
DIN EN ISO 4762 1)
Tightening torque TA [Nm]
2)
M8
M10
M12
M16
M20
M24
12
23
40
100
up to size 350 = 140
from size 400 = 180
Size 450 = 180
Size 550 to 600 = 240
from size 660 = 310
1) min. property class 8.8
2) Tightening torques of property class 5.6
Table 2: Tightening torques of bellhousings made of cast iron
Cap screws
DIN EN ISO 4762 1)
Tightening torque TA [Nm]
2)
M8
M10
M12
M16
M20
M24
23
46
79
195
up to size 350 = 300
from size 400 = 395
680
1) min. property class 8.8
2) Tightening torques of property class 8.8; friction coefficient 0.125
Table 3: Tightening torques of bellhousings made of steel
Cap screws
DIN EN ISO 4762 1)
Tightening torque TA [Nm]
2)
M8
M10
M12
M16
M20
M24
34
67
115
290
up to size 350 = 490
from size 400 = 560
970
1) min. property class 10.9
2) Tightening torques of property class 10.9; friction coefficient 0.125

!
STOP
The screws must be generally used with Loctite, Omnifit 230M or similar adhesives for
fastening.
If through holes with screws and nuts are used to fix the engine for reasons of stiffness, the
tappings in the engine flange must be bored accordingly.
Please specify in your order.
Venting holes or assembly openings in the bellhousing must be closed depending on the
instruction such that a contact among the coupling or shafts rotating in the bellhousing is
not possible. (Here KTR provides for nylon plugs and covering grid plates, see illustration 5
and 6.)
Illustration 5: Covering grid plate
Please observe protection
note ISO 16016.
Drawn:
Verified:
Illustration 6: Nylon plug
2019-07-16 Pz/Bet
2019-07-17 Pz
Replacing:
Replaced by:
KTR-N dated 2018-03-23
Bellhousing
Operating/Assembly instructions
3
KTR-N
Sheet:
Edition:
41010 EN
6 of 6
8
Assembly
3.2 Assembly of bellhousing
Continuation:
• If the bellhousing has a sealing function against oil flowing out of the bellhousing or penetrating into the
bellhousing (e. g. lateral assembly of tank below the oil level or type V1) this must be specified in the order!
In this case the bellhousing is inspected for tightness and provided with a marking (green point) in the area of
the engine connection.
Before assembly please make sure that the marking was made.
The user is responsible for the sealing between bellhousing and tank wall or pump.
Respective gaskets can partly be obtained from KTR.
!
4
Disposal
In respect of environmental protection we would ask you to dispose of the packaging or products on termination of
their service life in accordance with the legal regulations and standards that apply, respectively.
• Metal
Any metal components have to be cleaned and disposed of by scrap metal.
• Gaskets
Gaskets can be disposed of by residual waste.
• Nylon materials
Nylon materials have to be collected and disposed of by a waste disposal company.
5
Spares inventory, customer service addresses
We recommend to store major spare parts on site to ensure the readiness for use of the machine, for example in
case if a bellhousing fails.
Contact addresses of the KTR partners for spare parts and orders can be obtained from the KTR homepage at
www.ktr.com.

KTR does not assume any liability or warranty for the use of spare parts and accessories
which are not provided by KTR and for the damages which may incur as a result.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2019-07-16 Pz/Bet
2019-07-17 Pz
Replacing:
Replaced by:
KTR-N dated 2018-03-23
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Key Features

Connecting element
Aluminum, cast iron, nylon, steel
Durable construction
Various pump and motor sizes
Ready for assembly
Comprehensive instructions
Safety guidelines included

Frequently Answers and Questions

What materials are KTR Bellhousings made of?

KTR Bellhousings are available in aluminum, cast iron, nylon, and steel, depending on the specific model and application.

How do I assemble a KTR Bellhousing?

The bellhousing is supplied ready for assembly. Please refer to the assembly section in the manual for detailed instructions and torque specifications for different materials.