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Assembly

/LPK

/LPBK

en-14

2022-D026817

Revision: 04

The tension of the tooth belt is brought about by its construction. The toothed belt's prestressing
force influences the ball bearing life of the gearhead.

You can determine the theoretical bearing life for each case using our analysis software

cymex

Set your toothed belt so that there are no lateral starting loads pressing on the toothed belt
pulley.

5.5

Mounting the gearhead to a machine (only LK

/LPK

)

Gearhea

d size

LPBK

Close-tolerance bolt

Fastening bolts

Thread x

Depth

[mm] x [mm]

Tightening torque

[Nm]

Property class 10.9

Quantity x Thread

x Depth

[ ] x [mm] x [mm]

Tightening torque

[Nm]

Property class 12.9

070

M5 x 12

7,69

5 x M5 x 12

090

M6 x 16

13,2

7 x M6 x 16

15,4

120

M6 x 16

13,2

7 x M8 x 20

37,3

Tbl-8: Fastening the toothed belt pulley

Observe the safety and processing instructions of the screw-bonding
agents to be used.

Smear screw-bonding agent (for example
Loctite 243) onto the fastening bolts.

Fasten the gearhead to the machine with the
fastening bolts

only

through the threaded bores

(M).

Mount the gearhead in such a way that the
type plate remains legible.

Do not use washers (e.g. plain washers,
tooth lock washers).

For specified screw sizes and torques refer
to Chapter 9.2 "Information on mounting onto
a machine", tables "Tbl-14" and "Tbl-15".

Содержание LK Series

Страница 1: ...2022 D026817 04 2022 D026817 Revision 04 LK LPK LPBK Operating Manual ...

Страница 2: ...hnical questions please contact WITTENSTEIN alpha GmbH Customer Service Walter Wittenstein Straße 1 D 97999 Igersheim Tel 49 7931 493 10900 Fax 49 7931 493 10903 E mail service alpha wittenstein de WITTENSTEIN alpha GmbH 2010 This documentation is copyright protected WITTENSTEIN alpha GmbH reserves all the rights to photo mechanical reproduction copying and the distribution by special processes su...

Страница 3: ...on 8 4 Transport and storage 9 4 1 Scope of delivery 9 4 2 Packaging 9 4 3 Transport 9 4 4 Storage 9 5 Assembly 10 5 1 Preparations 10 5 2 Mounting the gearhead to a machine only LPBK 11 5 3 Mounting the motor onto the gearhead 12 5 4 Mounted components on the gear output side 13 5 4 1 Mountings on the output flange only LPBK 13 5 5 Mounting the gearhead to a machine only LK LPK 14 6 Startup and o...

Страница 4: ...translations of these instructions 1 1 Signal words The following signal words are used to bring your attention to dangers prohibitions and important information 1 2 Safety symbols The following safety symbols are used to bring your attention to dangers prohibitions and important information This signal word points to an imminent danger that can cause serious injuries and even death This signal wo...

Страница 5: ...ding to the following pattern 1 4 Information symbols The following information symbols are used z requires you to carry out an action Â indicates the results of an action L provides additional information on handling A Safety symbol see Chapter 1 2 Safety symbols B Signal word see Chapter 1 1 Signal words C Type and consequence of the danger D Prevention of the danger ...

Страница 6: ...k see Chapter 2 7 General safety instructions 2 3 Personnel Only persons who have read and understood these instructions may carry out work on the gearhead 2 4 Intended use The gearhead serves to convert torques and speeds It is built for industrial applications that do not fall under article 2 of the directive 2002 95 EU usage restriction of certain dangerous materials on electro and electronic e...

Страница 7: ...arhead is running z Secure the machine against restarting and unintentional movements during assembly maintenance work Hot gearhead housing can cause serious burns z Touch the gearhead housing only when wearing protective gloves or after the gearhead has been at standstill for some time Loose or overloaded screw connections can damage the gearhead z Use a calibrated torque wrench to tighten and ch...

Страница 8: ...he clamping hub and not with the adapter plate A radial distortion of the motor is avoided The optional LPBK has an output flange instead of an output shaft You thus have the option of mounting a toothed belt pulley 3 1 Overview of the gearhead components 3 1 1 Overview of the gearhead components LK LPK 3 1 2 Overview of the gearhead components LPBK Gearhead components LK LPK A Gearhead housing B ...

Страница 9: ...gned when the slit points to the label WITTENSTEIN alpha GmbH Walter Wittenstein Str 1 97999 Igersheim LPK 090 MO3 100 111 SN 1234567 DMF 24 08 Lubrication For Lifetime Made in Germany A C D B E i 100 10 Gearhead type LK LPK 050 070 090 120 155 LPBK 070 090 120 Gearhead variations M Motor attachment gearhead Gearhead model O Standard Number of stages 1 1 stage LK 2 2 stage LPK LPBK 3 3 stage LPK B...

Страница 10: ... 10 3 6 Noise emission Depending on the gearhead type and product size the continuous sound pressure level is between 70 and 78 dB A Please consult our Customer Service department if your gearhead is older than a year You will then receive the valid performance data Gearhead size LK 050 070 090 120 155 1 stage kg 0 7 1 9 3 2 8 9 18 9 Gearhead size LPK 050 070 090 120 155 2 stage kg 1 4 3 6 9 16 8 ...

Страница 11: ...the gearhead For specifications on the weights see Chapter 3 5 Weight 4 4 Storage Store the gearhead in horizontal position and dry surroundings at a temperature of 0 C to 40 C in the original packaging Store the gearhead for a maximum of 2 years For storage logistics we recommend the first in first out method Hard knocks for instance because of falling or hard dropping can damage the gearhead z U...

Страница 12: ...ng non aggressive detergent All fitting surfaces to neighboring components Centering The motor shaft The inside diameter of the clamping hub The bushing inside and out z Check the fitting surfaces additionally for damage and impurities LK LPK LPBK 1 5 2 Mounting the gearhead to a machine only LPBK 1 5 3 Mounting the motor onto the gearhead 2 5 3 Mounting the motor onto the gearhead 2 5 4 Mounted c...

Страница 13: ... the Aceton or Loctite 7063 anti corrosion agent use a clean lint free cloth z Also clean the browned toothed belt pulley with a brush and remove any salt residue between the flanged wheel and toothed belt wheel The fastening screws need to be provided by the customer L For prescribed screw sizes and torques refer to Chapter 9 2 Information on mounting onto a machine table Tbl 16 L When using holl...

Страница 14: ...n and safety instructions of the motor manufacturer z Observe the safety and processing instructions of the screw bonding agents to be used z Ensure that the motor is mounted if possible in a vertical direction z If the motor shaft has a shaft key remove the shaft key L If recommended by the motor manufacturer apply a half wedge z Turn the clamping hub A so that the threaded pin B can be reached t...

Страница 15: ... static axial forces at static bearing statistic s0 1 8 and radial force FR 0 z Observe the safety and processing instructions of the cleaning agents and screw bonding agents to be used Only the version LPBK features an output flange on which a toothed belt pulley I can be mounted with the bolts z Thoroughly clean the output flange centering fitting surface spacer and toothed belt pulley The anti ...

Страница 16: ... Property class 10 9 Quantity x Thread x Depth x mm x mm Tightening torque Nm Property class 12 9 070 M5 x 12 7 69 5 x M5 x 12 9 090 M6 x 16 13 2 7 x M6 x 16 15 4 120 M6 x 16 13 2 7 x M8 x 20 37 3 Tbl 8 Fastening the toothed belt pulley z Observe the safety and processing instructions of the screw bonding agents to be used z Smear screw bonding agent for example Loctite 243 onto the fastening bolt...

Страница 17: ... to the gearhead z Make sure that the ambient temperature does not drop below 15 C or exceed 40 C and the operating temperature does not exceed 90 C z Avoid icing which can damage the seals z For other conditions of use please consult our Customer Service Department z Only use the gearhead only up to its maximum limit values see Chapter 3 4 Performance statistics z Only use the gearhead only in a ...

Страница 18: ...tening torques in Chapter 9 2 Information on mounting onto a machine table Tbl 14 Tbl 15 and Tbl 16 z For LPBK gearheads also check the fastening bolts on the toothed belt pulley L You can find the prescribed tightening torques in Chapter 5 4 Mounted components on the gear output side table Tbl 8 z Check the tightening torque of the threaded pin on the motor mounting L You can find the prescribed ...

Страница 19: ...es intended for this purpose L Observe the locally valid regulations for disposals All gearheads are lubricated for their service life by the manufacturer with a mineral oil based lithium soap grease or with a food safe synthetic grease carbon hydride oil aluminum complex soap see type plate All bearings are permanently lubricated by the company Standard lubricants Lubricants for the food industry...

Страница 20: ...erature The gearhead is not suited for the task Check the technical specifications Motor is heating the gearhead Check the wiring of the motor Ensure adequate cooling Change the motor Ambient temperature too high Ensure adequate cooling Increased noises during operation Distortion in motor mounting Please consult our Customer Service Department Damaged bearings Damaged gear teeth Loss of lubricant...

Страница 21: ...g hub interior Ø mm Width across flats Threaded pin B mm Tightening torque Nm Max axial force N LK LPK 050 11 3 5 6 45 LK LPK LPBK 070 16 4 14 80 090 24 5 23 100 120 32 6 45 150 LK LPK 155 1 2 stage 42 8 78 180 155 3 stage 32 6 45 150 Tbl 13 Information on mounting onto a motor Gearhead size LK Bore Ø mm Screw size property class Tightening torque Nm 050 44 M4 8 8 2 64 070 62 M5 8 8 5 24 090 80 M6...

Страница 22: ...5 070 62 M5 12 9 9 090 80 M6 12 9 15 4 120 108 M8 12 9 37 3 155 140 M10 12 9 73 4 Tbl 15 Threaded bores in the gear unit housing LPK Gearhead size LPBK Bore Ø mm Forscrewsize property class Tightening torque Nm 070 82 M8 12 9 37 3 090 106 M10 12 9 73 4 120 144 M12 12 9 126 Tbl 16 Through holes in gearhead housing LPBK Tightening torque Nm for threads Property class Bolt nut M3 M4 M5 M6 M8 M10 M12 ...

Страница 23: ...2022 D018080 06 enAC XXXXXXXX 2022 D018080 Revision 06 WITTENSTEIN alpha GmbH Walter Wittenstein Straße 1 97999 Igersheim WITTENSTEIN being one with the future www wittenstein de ...

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