ITEM LRE 8 D10 80x80 KGT Operating instructions

Linear Unit LRE 8 D10 80x80 KGT
Linear Unit LRE 8 D14 80x80 KGT
Notes on Use and Installation

2
Symbols, safety
Meaning:
Important, safety information, recommendation
Maintenance
General safety information
Contents
The details and information in the installation guide are provided solely for
the purposes of describing the product and the assembly and disassembly of
variants of Linear Units LRE 8 D10 80x80 KGT and LRE 8 D14 80x80 KGT. The
text below usually refers to these as the Linear Unit or LRE. This information
does not discharge the user from the obligation to carry out his own assess-
ments and checks. It is important to bear in mind that our products are subject
to a natural process of wear and ageing. These notes contain important infor-
mation that will enable you to use the product safely and appropriately. When
sold, rented out or otherwise passed on to another party, this product must be
handed over with the installation guide.
When installing, disassembling, operating and maintaining the Linear Unit, it is
important to ensure that all moving elements are secured so that they cannot
be switched on and moved unintentionally. Rotating and moving parts can
cause serious injury! You must therefore read and follow the safety instructions
set out below.
▪All work on and with the Linear Unit must be performed with “safety first” in
mind.
▪Always switch off the drive unit before you start working on the Linear Unit.
▪Ensure the drive unit cannot be switched on unintentionally,
e.g. by affixing warning notices at the activation point or by removing the fuse
from the power supply.
▪Do not place your hand within the operating range of the Linear Unit’s
moving parts when the unit is still switched on.
▪Fit guards and covers to the moving parts of the Linear Unit to ensure they
are not touched unintentionally.
▪Observe the regulations pertaining to accident prevention and environmental
protection that apply in the country and place of work where the product is
being used.
▪Use only products that are in perfect working order.
▪Failure to use original spare parts will invalidate the product warranty!
▪Check the product for obvious defects.
▪Use the product only within the performance range described in the techni-
cal data.
▪Ensure that all the safety equipment associated with the product is present,
properly installed and in full working order.
▪Do not alter or circumvent safety equipment, or render it ineffective.
The Linear Unit described here corresponds to the state of the art and takes
into account the general principles of safety applicable at the time this installa-
tion guide was published. Nevertheless, failure to observe the safety instruc-
tions and warning notices in this installation guide may result in personal injury
and damage to property.
We will assume no liability for any resulting damage or injury. We reserve the
right to make technical changes that represent technical advances. Keep these
installation notes in a place where they can be easily accessed by all users.
Observe the directions contained in the main user guide for the completed
machine.
The general safety information applies to the entire lifecycle of the partly
completed machine.
Symbols, safety 2
General safety information 2
Correct use 3
Improper use 3
Operating parameters 4
Preparation 6
Installation 6
Installing the Linear Unit 7
Installing KGT universal bearing blocks 8
Tensioning the screw collet mechanism, floating bearing end 8
Tensioning the screw collet mechanism, fixed bearing end 9
Lubricating the screw 9
Inserting the preassembled screw into Profile 8 80x80 KGT 9
Installing the carriage 10
Potential applications 11
Connecting the yoke adapter to the LRF carriage 11
Installing the bearing block, floating bearing end 12
Installing the End Cap 12
Connecting Drive Set KGT D40/D15 - 0.0.667.76 13
Connecting Drive Set KGT D40/D15 SE 60 – 0.0.672.78
Connecting Drive Set KGT D40/D15 SE 80 - 0.0.672.77 13
Slide Stop LRE 8 15
Lubrication 17
Maintenance 17

3
Correct use
Improper use
Linear Units LRE 8 D10 80x80 KGT and LRE 8 D14 80x80 KGT with controller
and motor are both a partly completed machine as defined in the Machinery
Directive (2006/42/EC). They must only be used in accordance with the tech-
nical data and safety requirements set out in this document. Internal company
requirements and the regulations that apply in the country where the product
is being used must be observed. You must not make any design modifications
to the aforementioned Linear Unit yourself. We will assume no liability for any
resulting damage or injury. You may only install, operate and maintain the
Linear Unit if:
▪The Linear Unit has been integrated properly and safely into the completed
machine,
▪You have carefully read and understood the installation guide,
▪You are appropriately qualified,
▪You are authorised to do so by your company,
▪You are using only original equipment from the manufacturer.
Unsafe or inappropriate use of the Linear Unit runs a risk of serious injury
through crushing and cuts.
1. During transportation
Observe the handling instructions on the packaging. Until it is installed, the
product must be stored in its original packaging, protected from moisture and
damage. Ensure that moving parts are secured when in transit and cannot
cause any damage.
2. During installation
Always deactivate the power to the relevant system part and ensure it is not live
before installing the product and/or plugging it in or unplugging it. Ensure the
system cannot be switched back on. Lay cables and lines in such a way that
they cannot be damaged and do not represent a trip hazard. Avoid areas that
pose slip, trip and fall hazards.
3. During commissioning
Allow the product to acclimatise for a few hours before starting to use it. Ensure
that the partly completed machine is securely and safely integrated into the
completed machine. Only start up a product that has been installed in full.
4. During operation
Ensure that only persons who have been authorised by the operator have
access to the immediate operating area of the system. This also applies when
the system is not in operation. It must not be possible to actuate moving parts
unintentionally. In the event of an emergency, malfunction or other irregularity,
deactivate the system and ensure it cannot be switched back on. Prevent the
possibility of persons becoming trapped in the system’s accessible hazard zone.
5. During cleaning
Close all openings with suitable protective equipment to ensure that cleaning
agents cannot penetrate the system. Do not use aggressive cleaning substanc-
es. Do not use a high-pressure cleaner when cleaning the system.
6. During maintenance and servicing work
Carry out the prescribed maintenance work at the intervals stipulated in the
user guide. Ensure that no line links, connections or components are removed
while the system is live and under pressure. Ensure the system cannot be
switched back on.
7. During disposal
Dispose of the product in accordance with the national and international regula-
tions that apply in your country.
Improper use is defined as any use of the product for purposes other than those
authorised in the assembly guide and under the definition of correct use. We
will assume no liability for any resulting damage or injury.

4
L
x
y
z
Fz
Mz
Fx
Mx
Fy
My
Support width
Lmax when
Fz max [mm]
Support width
Lmax when
Fy max [mm]
Fy max [N] Fz max [N] Mx max [Nm] My max [Nm] Mz max [Nm] Operating
load
Fx max [N]
Linear Unit LRE 8 D10
80x80 KGT 20x5
2500 2200 1300 880 39 35 52 2000
Linear Unit LRE 8 D10
80x80 KGT 20x20
2500 2200 1300 880 39 35 52 2000
Linear Unit LRE 8 D14
80x80 KGT 20x5
1900 1700 2400 1600 76 64 96 2000
Linear Unit LRE 8 D14
80x80 KGT 20x20
1900 1700 2400 1600 76 64 96 2000
The service life of the screw and drive nut com-
bination can be calculated based on the thrust
load and drive speeds
The maximum travelling speed of the spindle units
depends on the length of the spindle (see adjacent
diagram).
L = Service life
F = Force
P = Pitch
Linear Units LRE 8 D10 80x80 KGT and LRE 8 D14 80x80 KGT are generally
constructed from Line 8 profiles that have been cut to size and various assem-
blies. Before starting assembly work, it is important to check that all parts are
present.
The maximum possible drive torque is:
LRE 8 D10 80x80 KGT 20x5: TD= 2 Nm
LRE 8 D10 80x80 KGT 20x20: TD= 7.5 Nm
LRE 8 D14 80x80 KGT 20x5: TD= 2 Nm
LRE 8 D14 80x80 KGT 20x20: TD= 7.5 Nm
Operating parameters

5
Environmental considerations:
Storage temperature: –20°C to +70°C
Relative humidity: 5% to 85%
Linear Unit LRE is intended as a permanent fixture to be used in an area that is
protected from the weather.
The area should be free from mould and fungus and show no traces of rodents
or other pests.
Do not install or use in close proximity to industrial plants that produce chemi-
cal emissions.
Do not install or use near sources of sand or dust.
Do not install or use in an area that is regularly exposed to high-energy surges
such as those caused by presses or heavy machinery, for example.
In case of doubt regarding resistance to certain chemicals such as test oil,
alloyed oils, aggressive cleaning substances, solvents or brake fluid, we advise
that you consult your specialist representative.
Consult the manufacturer if using in very salty air. Deflection in the linear axis of
the LRE should not exceed 1 mm over an axis of 1000 mm. In scenarios where
high demands are placed on the system dynamics, supports should be added
every 300 mm to 600 mm. These supports must not affect the Reverse Units.
The safety distance S is a reserve distance to accommodate tolerances
and carriage overtravel under high loads and accelerations at the reversal
point. It must be factored into the equation depending on the capabilities of the
drive and Controller, but in any event should not be smaller than shown!
HS
L=H+400
160
S
35
17
35
40 40
Linear Unit LRE 8 D10 80x80 KGT 20x5

Maximum stroke Hmax 2687 mm
Safety clearance S 76.5 mm
Basic mass (when stroke length = 0 mm) m18.3 kg
Mass per mm of stroke m212.8 g/mm
Total mass m = m1+ H * m2
Repeatability 0.05 mm
Maximum acceleration 5m/s2
Maximum travelling speed 0.25 m/s
Feed constant 5mm/r
1 pce.
0.0.668.12
HS
L=H+400
160
S
35
17
35
40 40
Linear Unit LRE 8 D10 80x80 KGT 20x20

Maximum stroke Hmax 2687 mm
Safety clearance S 76.5 mm
Basic mass (when stroke length = 0 mm) m18.2 kg
Mass per mm of stroke m212.5 g/mm
Total mass m = m1+ H * m2
Repeatability 0.05 mm
Maximum acceleration 5m/s2
Maximum travelling speed 1m/s
Feed constant 20 mm/r
1 pce.
0.0.668.10
S
17
35
H
L=H+400
160
S
35
40 40
Linear Unit LRE 8 D14 80x80 KGT 20x5

Maximum stroke Hmax 2687 mm
Safety clearance S 76.5 mm
Basic mass (when stroke length = 0 mm) m110.0 kg
Mass per mm of stroke m214.3 g/mm
Total mass m = m1+ H * m2
Repeatability 0.05 mm
Maximum acceleration 5m/s2
Maximum travelling speed 0.25 m/s
Feed constant 5mm/r
1 pce.
0.0.668.06
S
17
35
H
L=H+400
160
S
35
40 40
Linear Unit LRE 8 D14 80x80 KGT 20x20

Maximum stroke Hmax 2687 mm
Safety clearance S 76.5 mm
Basic mass (when stroke length = 0 mm) m110.0 kg
Mass per mm of stroke m214.0 g/mm
Total mass m = m1+ H * m2
Repeatability 0.05 mm
Maximum acceleration 5m/s2
Maximum travelling speed 1m/s
Feed constant 20 mm/r
1 pce.
0.0.668.08

6
HS
L=H+400
160
S
35
17
35
40
40
When higher loads are involved, it is advisable to secure the Shaft. Ideally, a
Combination Drilling Jig (c) should be used to machine the Shaft, Shaft-Clamp
Profile and Support Profile as detailed in the following steps:
▪Using a carbide drill, cut a blind hole in the Shaft, 40 mm from the end face
(as shown in the drawing)
▪At the same distance from the end face, cut a through hole (d) through the
Shaft-Clamp Profile and Support Profile together, up to the centre bore of
the Support Profile
▪Press dowel pin (b) DIN 6325 into the Shaft
▪Install the Shaft into the Shaft-Clamp Profile as described above
Installation
b = DIN 6325-4x24 dowel pin
c = Order No. 0.0.444.68 for Shaft D10
d = ⌀4 mm
Shaft-Clamp Profile and Shaft D10:
There are various methods for assembling support profile, Shaft-Clamp Profile
and Shaft.
To make installation easier, apply a film of oil or grease to the outer surfaces
of the Shaft-Clamp Profile that come into contact with the support profile be-
fore pressing it into the groove. Do the same to the contact points between the
Shaft and Shaft-Clamp Profile and to the guiding Shaft itself. When working
with short support profiles that have not yet been connected to a fixture, it is
advantageous to undertake installation in the following steps:
▪Press the Shaft-Clamp Profile into the relevant groove of the support profile
▪Use a vice (fitted with protective jaw plates) to press in the Shaft
▪Follow the same sequence for the other side
Support profile,
e.g.: Profile 8 80x80
Guide,
Roller guide 8 D10/D14
Drive,
e.g.: Ball Screw Unit 20x20 or Ball Screw Unit 20x5
Fundamentally, a Linear Unit converts a rotary motion into a translational
motion.
A Linear Unit is made up of:
▪Guide
▪Drive
▪Support profile
These components are picked for assembly and assembled in part or in full,
depending on customer wishes.
Preparation

7
1. 2.
3.
On longer stretches, when the support profiles have already been installed
or are being held in a vice and the Shaft-Clamp Profile has been pressed into
place, you can press the shaft into the Shaft-Clamp Profile section by section
using the Mounting Aid (0.0.265.38) and a lever in the form of a suitable
round steel bar.
a = DIN 7979-6x32 dowel pin
If there are undefined loads on the guide unit such as impact loads that
could cause movement in the Bearing Units, the Bearing Units will need to be
reinforced. You can do this by drilling and pinning (a) the Units in the positions
indicated or the areas shown in dark grey.
When higher loads are involved, it is advisable to secure the Shaft. Ideally, a
Combination Drilling Jig (c) should be used to machine the Shaft, Shaft-Clamp
Profile and Support Profile as detailed in the following steps:
▪Using a carbide drill, cut a blind hole in the Shaft, 40 mm from the end face
(as shown in the drawing)
▪At the same distance from the end face, cut a through hole (d) through the
Shaft-Clamp Profile and Support Profile together, up to the centre bore of
the Support Profile
▪Press dowel pin (b) DIN 6325 into the Shaft
▪Install the Shaft into the Shaft-Clamp Profile as described above
b = DIN 6325-6x30 dowel pin
c = Order No. 0.0.373.55 for Shaft D14
d = ⌀6 mm
Shaft-Clamp Profile and Shaft D14:
There are various methods for assembling support profile, Shaft-Clamp Profile
and Shaft.
To make assembly easier, apply a film of oil or grease to the outer surfaces of
the Shaft-Clamp Profile that come into contact with the support profile before
pressing it into the groove. Do the same to the contact points between the
Shaft and Shaft-Clamp Profile and to the guiding Shaft itself. When working
with short support profiles that have not yet been connected to a fixture, it is
advantageous to undertake installation in the following steps:
▪Press the Shaft-Clamp Profile into the relevant groove of the support profile
▪Use a vice (fitted with protective jaw plates) to press in the Shaft
▪Follow the same sequence for the other side
Installing the Linear Unit
1. Cut the screw to length and deburr it. When screwing on the drive nut, take
extra care to ensure the balls do not fall out.
Do not pull the assembly tube out of the drive nut under any circumstances!
2. With the assembly tube still fitted, place the drive nut against the end-face
of a free end of the screw and carefully turn it onto the screw (right-hand
thread).
The assembly tube will be pushed slowly out of the nut insert as you do this.
Keep the tube to use when disassembling the system.
3. If balls escape despite taking great care during installation, individual balls
can be reinserted. To do this, carefully turn the drive nut up to the free end
of the screw until you can see individual balls. You can then insert the es-
caped balls between balls that are still in the raceway (never into the return
system). Do not use drive nuts that contain an insufficient number of balls in
ball screw units (high noise, service life).
Once you have installed the drive nut, you can slide on the gimbal adapter
(on the flange side of the drive nut) and screw it to the drive nut. To do this,
carefully turn the unit until it is approx. 20 mm from the end of the screw.
Note:
To prevent backlash in the drive train, the gimbal adapter is stiff to move.

8
4. 5.
Installing KGT universal bearing blocks
Slide the machined collet mechanism of the fixed bearing version into the
bearing and fix it in place with the lock nut.
Tighten the self-locking lock nut with a socket wrench. Apply sufficient tighten-
ing torque to ensure the bearing is stiff. Next, unscrew the lock nut by a quarter
turn and then retighten until the bearing is free from play.
Tensioning the screw collet mechanism, floating bearing end
It is essential to perform an alignment during installation since angle errors
in the connection between the collet mechanism and screw have an adverse
effect on the running characteristics of ball screw units.
Generally, the open side of the fork on the yoke adapter should face toward
the fixed bearing end while the operating side of the screw connection
with the gimbal adapter should face toward the floating bearing end. This
arrangement ensures that the otherwise asymmetrical ball screw units can be
replaced and series manufactured.
Install the collet mechanism of the floating bearing end first. If the bearing
seat of the collet mechanism exhibits an excessive interference fit, it is advis-
able to modify the collet mechanism so that it can be mated by being gently
tapped with a hammer. This modification is best carried out in a rotating
fixture and using abrasive paper.
During installation, introduce the screw into the collet mechanism vertically (to
compensate for deflection). The collet mechanism must be held in the floating
bearing block for this purpose (see photo).
It is advisable to use a fixture made of item profiles to help with this procedure.
This fixture can be used to secure the bearing block and check that the screw
is being clamped centrically in the collet mechanism.
The yoke adapter has already been fixed axially on the screw by the damping
rings. Turn this unit to move it towards the floating bearing end so that the
clamping screws of the collet mechanism can be operated.
Evenly tighten the clamping screws of the collet mechanism and continuously
turn the collet mechanism and screw to align the screw flush with the hub.
A limit stop above the collet mechanism can be used as a visual point of ref-
erence for angularity. You can directly identify the influence of the tightening
torque on the various clamping screws at this stop.
When using a stop at a height of approx. 1,000 mm, the set run-out after
tensioning should be no more than 0.5 mm. Now remove the floating bearing
end collet mechanism from the floating bearing block. The collet mechanism
remains attached to the screw so that the preassembled unit can be inserted
into Profile 8 80x80 KGT later on.
4. Next, slide on the nut connector and screw it to the gimbal adapter. 5. Slide on the two damping rings, one at either side of the yoke adapter, to fix
the unit in place axially and prevent it from moving independently.

9
Tensioning the screw collet mechanism, fixed bearing end
Follow the same procedure you used for the floating bearing end to install the
collet mechanism on the fixed bearing end. To do this, secure the preassem-
bled fixed bearing block to the fixture and introduce the screw vertically.
Ensure the centre ring for the fixed bearing end is fitted before the collet
mechanism is fastened in place. It cannot be fitted subsequently.
Lubricating the screw
Apply a suitable grease lubrication to the preassembled screw unit. We recom-
mend applying GLEITMO 810 (Fuchs Lubritech) with a brush.
Inserting the preassembled screw into Profile 8 80x80 KGT
Once you have inserted the lip seals into Profile 8 80x80 KGT, you can insert
the preassembled and adjusted unit into Profile 8 80x80 KGT and fix it in
place.
This unit comprises:
▪Collet mechanism, floating bearing end
▪First damping ring
▪Drive nut
▪Gimbal adapter
▪Yoke adapter
▪Screw
▪Second damping ring
▪Collet mechanism in fixed bearing block with centre ring

10
50
100
140
80
160
Ø10

100
160

Adjust the yoke adapter at the preassembled fixed bearing end. To do this,
move the yoke adapter as far as it will go towards the fixed bearing end
(by turning the screw with a cranked handle or similar).
Fit the floating bearing end bearing block and centre ring over the floating
bearing end collet mechanism and fix it in place temporarily, so as to limit the
effects of any sagging in the screw.
The yoke adapter consists of the nut connector and carrier, which are con-
nected together by M8 screws.
Installing the carriage
To build a linear guide, you need a centric (fixed) Double-Bearing Unit opposite
an eccentric (adjustable) Double-Bearing Unit. The roller profiles offer a range
of fastening options via Line 8 grooves, which makes it far easier to mount
and align them on profiles.
Align and screw-attach the non-adjustable Bearing Unit (Double-Bearing Unit
8 D14 c or Double-Bearing Unit 8 D10 c) parallel to the end of the carriage
plate, i.e. the Cap on the Profile 8 160x40. Next, fasten the adjustable Bearing
Units (Double-Bearing Unit 8 D14 e or Double-Bearing Unit 8 D10 e) to the
other side of the carriage plate. To do this, use Screws M8x20 and T-Slot Nuts
8 St M8, heavy duty to screw the Bearing Units to the carriage plate from the
underside.
(Tightening torque for Hexagon Socket Head Cap Screws: T = 34 Nm).
You must prepare the eccentric orientation of the eccentric Bearing Units
before using the guide carriage.
Use an Allen key to turn the eccentric bolt of the rollers:
Drive the bolt as far as it will go
Turn back ½ a turn
Continue turning back until the rearmost eccentric position is reached
When Bearing Units have been prepared and installed in this way, the maxi-
mum play between the rollers and Shafts can be used to adjust preload. The
carriage can now be slotted onto the Shafts. When adjusting the Bearing Units
to eliminate play, ensure that no excess strain is generated! To do this, keep
moving the carriage over its entire travel distance until it runs on the support
profile without any play and without being subjected to excessive strain. After
making this adjustment, fix the position of the eccentric bolt by securing the
lock nut with a Pin Spanner. While securing the lock nut with a Pin Spanner,
use an Allen key to hold the bolt in its selected position.
Accessories: Pin Spanner 5 D6, 8 D10 (0.0.390.13) and 8 D14 (0.0.294.41)
Tightening torque 8 D14: T = 20 Nm
Tightening torque 8 D10: T = 6 Nm
Tip: Only install the End Cap and Lubricating Systems once the adjustments
have been completed, as the friction of the wipers significantly reduces the
sensitivity required when adjusting the eccentric bolts.

11
50
100
140
80
160
Ø10

100
160

Application options
Connecting the yoke adapter to the LRF carriage
Place the carriage of the linear guide onto the profile and slide it over the yoke
adapter. Use the two grub screws (DIN 913-M5x5) to make height and angle
adjustments to the yoke adapter.
Ensure that the yoke adapter is aligned with the screw and the profile. The
maximum permissible angle error must not be exceeded.
As the yoke adapter is suspended in a movable arrangement via the gimbal
adapter, a range of adjustments can be made. You should select a setting that
is neutral in terms of angle and height, so that you can make full use of the
flexibility offered by the gimbal adapter during later use. To do this, position
the yoke adapter at the end of the travel range on the KGT and align it with the
carriage. Now fix the selected setting (grub screws) via the M8 screws at the
side.
You can now use the prepared M8 threaded bores to connect the carriage to
the set yoke adapter.
Depending on how the yoke adapter has been positioned for use, the connect-
ing threads can be central on the carriage or offset by 20 mm.

12
Installing the bearing block, floating bearing end
Until now, the bearing block at the floating bearing end has only been fixed in
place temporarily. Now loosen the relevant screws so that the bearing block
can move within the range permitted by the centre ring.
Now move the carriage to the floating bearing end. As you do this, the nut will
determine the position of the screw and thus bring the bearing block at the
floating bearing end into alignment (where strain is therefore at its lowest).
Use Button-Head Screws M6x45 to secure the bearing block to Profile 8
80x80 KGT in this position.
Installing the End Cap
To cover rotating parts, screw the End Cap to the bearing block where the
screw is not driven.
The collet mechanism and the lock nut (of the fixed bearing) protrude out of
the profile housing of the bearing block.

13
⌀8-24
76
10
32.2
40.5
M
□80
10
66
□80
54
⌀50
⌀19
30
2.2
12
∅47 ∅15
∅40
∅42
∅63
M8
∅50
□80
□80
54
12
∅15
10
e
d
b
a
g
f
c
To make the connection, screw the two Hexagon Socket Head Cap Screws
DIN 912 M8x60 that are supplied with the Drive Set through the Coupling
Housing of the Drive Set and into the fixed bearing block of the ball screw unit.
Tightening torque: T = 25 Nm
Machine the drive casing or Adapter Plate according to the requirements of
the motor or gearbox you are using and then screw it to the motor or gearbox.
Take the coupling half that is to be connected to the drive shaft and drill a hole
in it to match the drive shaft then connect the coupling half and the shaft.
The torques transferred by the clamp connection factor in the maximum
mating play for shaft fits: Shaft k6 / hole H7.
Force is transferred from the coupling to the drive shaft by means of frictional
resistance. The Shaft and the hole in the coupling hub must be degreased and
cleaned to ensure the frictional resistance is effective. Hexagon Socket Head
Cap Screws must be secured against working loose.
Connecting Drive Set KGT D40/D15 SE 60 – 0.0.672.78
Connecting Drive Set KGT D40/D15 SE 80 – 0.0.672.77
Coupling half that accommodates the drive shaft
Coupling Housing with hole (that can be sealed) to allow an Allen key through
to generate the necessary clamping force on the drive shaft.
Fastening screws, Hexagon Socket Head Cap Screws DIN 912 M8x60
Drive Set KGT D40/D15 has been optimised for item Linear Units with a Ball
Screw Unit. It connects them with a motor. This is made possible by an Adapt-
er Plate that can be machined to suit any requirements. The central coupling
bore can also be enlarged to match the drive shaft of the motor. Thanks to the
integrated expanding hub coupling, the casing is particularly narrow.
a: Button-Head Screw ISO 7380 M6x16
for the connection to the bearing block
b: Hexagon Socket Head Cap Screw DIN 912 M8x60
c: Hexagon Socket Head Cap Screw DIN 912 M4x16
for the connection to the item Motor
d: Hexagon Socket Head Cap Screw DIN 912 M6x16
e: Expanding hub coupling D40/D15
f: ZR1
g: ZR2
Connecting Drive Set KGT D40/D15 - 0.0.667.76
Adapter plate

14
□80
□80
54
12
∅15
12
a
g
f
e
d
b
c
1. 2.
3. 4.
The torques transferred by the clamp connection factor in the maximum
mating play for the shaft fits: Shaft k6 / hole H7. Force is transferred from the
Coupling to the drive shaft by means of frictional resistance. The Shaft and
the hole in the coupling hub must be degreased and cleaned to ensure the
frictional resistance is effective. Hexagon Socket Head Cap Screws must be
secured against working loose.
Hexagon Socket Head Cap Screws M6x20, T = 13 Nm.Working through the
Coupling Housing, create a friction-based connection between the clamping
hub screw (T = 9.6 Nm) of the clamp coupling half and the drive shaft.
Seal the opening in the Coupling Housing!
Then insert centre ring ZR2Next, use the Hexagon Socket Head Cap Screw M6x20 (T = 13 Nm) to
screw on the prepared expanding hub coupling in the drive bearing block
of the KGT.
a: Button-Head Screw ISO 7380 M6x16
for the connection to the bearing block
b: Hexagon Socket Head Cap Screw DIN 912 M8x60
c: Hexagon Socket Head Cap Screw DIN 912 M5x20
for the connection to the item Motor
d: Hexagon Socket Head Cap Screw DIN 912 M6x16
e: Expanding hub coupling D40/D15
f: ZR1
g: ZR2
Drive Set KGT D40/D15 SE 60 (0.0.672.78) and Drive Set KGT D40/D15
SE 80 (0.0.672.77) are used solely to connect item Motors to Linear Unit
LRE 8 D10/D14 80x80 KGT. The Drive Set is fully prepared for installa-
tion on the corresponding Linear Unit.
The drive shaft transfers drive torque without backlash. To ensure this
functionality, position centre ring ZR1 between the bearing block and
Adapter Plate. Next, screw Button-Head Screws ISO 7380 M6x16 (T = 13
Nm), which are supplied with the Drive Set, through the Adapter Plate of
the Drive Set and into the bearing block of the ball screw unit.

15
5. 6.
7.
60
60
48
39
Slot the housing over the fully assembled Coupling and screw it into place
using Hexagon Socket Head Cap Screws DIN 912 M8x60 (T = 25 Nm).
A Gearbox is not required. Use the enclosed Hexagon Socket Head Cap
Screws DIN 912 M4x16 (0.0.672.78) or Hexagon Socket Head Cap
Screws DIN 912 M5x20 (0.0.672.77) to connect the Motor to the secured
Adapter Plate.
The clamping screw of the Coupling can be operated through the opening
in the Coupling Housing.
Basic unit
Slide Stop
The robust aluminium Slide Stop LRE 8 stops the carriage on a Linear Unit
travelling past the calculated or desired point, and also acts as a homing point
for the system. Thanks to its special shape, the Slide Stop can be used with
shafts in various diameters and fitted at any position.
Note: When configured using item MotionDesigner®, most LRE-type Linear
Units from item are automatically fitted with a Slide Stop that can be moved
to a different position or removed entirely, as required. Some models, such as
Linear Units KLE, are designed in such a way that an additional Slide Stop is
unnecessary.
Slide Stop LRE 8

16
L=H+400
160S
27
15
60
40
L =H+313
P
L = Gesamtlänge
in Abhängigkeit von Hub H
S = Sicherheitsabstand
S
17
35
40
H
L=H+400
160
S
35 40
L=H+400
160
27
15
60
S
40
L =H+313
P
L = Gesamtlänge
in Abhängigkeit von Hub H
S = Sicherheitsabstand
HS
L=H+400
160
S
35
17
35
40
40
Linear Unit LRE 8 D14 80x80 KGT 20x5
Linear Unit LRE 8 D10 80x80 KGT 20x20
To fit Slide Stop LRE 8, first mark the desired end position on the support
profile of the linear axis. This position does not need to match the maximum
travel, but rather can be adapted to the transport task at hand.

17
Fmax=2000N
M=9Nm
Max. load
Maintenance
End Cap and Lubricating Systems are essential in order to protect and lubricate
the Bearing Units. These should be fitted back in place only when the guide
carriage has been mounted on the Shafts. Otherwise, it is important to ensure
the movable wipers are pressed back when sliding the guide carriage onto the
Shaft, to ensure they are not bent.
Wipers located in the internal recesses of the end-face End Cap and Lubricating
Systems are also designed to take up the lubricant. They are pressed against
the guiding Shaft by a spring. These wipers are supplied pre-charged with lubri-
cant and can be topped up with lubricant as required via the hole in the cap.
In the event of considerable soiling, you may need to replace the wipers.
Ball Screw Units KGT are virtually maintenance-free. The initial greasing has to
be renewed after around 400 to 500 operating hours. The following intervals
vary according to operating conditions. As the amount of grease applied when
renewing lubrication is lower than the initial greasing, maintenance intervals
subsequently get shorter (approx. every 200 to 300 operating hours). A spray-
able grease with a mineral-oil base such as GLEITMO 815 (Fuchs Lubritech) is
particularly suitable. Lubrication is renewed via the lip seals. Apply a thin, even
coating of grease directly to the screw.
Suitable for use in dry conditions and over the temperature range -20°C to
+70°C.
If operating conditions are unusual, e.g. special type of installation, dust, short
stroke, influence of solvents etc., the lubrication intervals must be adapted
accordingly.
This information does not discharge the user from the obligation to carry out his
own assessments and checks.
It is important to bear in mind that our products are subject to a natural process
of wear and ageing.
The rollers of the guide are maintenance-free. The spring-loaded end cap and
lubricating felts can be topped up with lubricant as required via a hole.
Recommended re-oiling period: Every 6 months or every 2500 km. The felt
pieces are supplied in ready-oiled condition.
Synthetic lubrication oil ISO VG 460, e.g. item Track Oil for Linear Guides
(0.0.612.75).
Add the following quantity to each maintenance hole at the end of each mainte-
nance interval: 2 ml
Grease containing solid particles (e.g. graphite and MoS2 additives) must not
be used.
Oil Can for Linear Guides (one actuation delivers approx. 1 ml of oil).
To ensure adequate lubrication, the carriage must cover a minimum travel
distance. Minimum stroke length [mm]: 320 mm
Ideal operating conditions:
Ambient temperature: 10 °C ... 40 °C
Load: <5%
The drawings and formulae can be used to help calculate the relevant end
positions when installing the Slide Stops in relation to travel. You can use both
sides of the support profile to install Slide Stop LRE 8.
In the case of Linear Units LRE with a rack drive, Slide Stop LRE 8 can only be
installed on the side opposite the Motor.
Roll the T-Slot Nuts into the groove under the shaft on the side where you are
going to install the Stop.
Use two screws (M6) to attach the basic unit, but do not tighten them at this
stage. When installing the basic unit, make sure the threads are facing toward
the Reverse Unit.
Next, slide the basic unit along the groove until the outside edge facing the
Reverse Unit is in line with the mark you made earlier and then tighten with the
appropriate torque.
Finally, use two M6 screws to attach the Slide Stop to the basic unit and tighten
with the appropriate torque – M = 9Nm.
Lubrication

item Industrietechnik GmbH
Friedenstrasse 107-109
42699 Solingen, Germany
Germany
Telephone [phone]
Fax [phone]
[e-mail]
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You can find the Notes on Use and Instal-
lation online, in the download section for
this product.
x.x.xxx.xx 7/2017
© item Industrietechnik GmbH Made in Germany