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Linear Unit KRF 8 80x40 ZR

Correct use

Improper use

Linear Unit KRF 8 80x40 ZR is a partly completed machine as defined in the 

Machinery Directive (2006/42/EC). Linear Unit KRF 8 80x40 ZR must only be 

used in accordance with the technical 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 Linear Unit KRF 8 80x40 ZR yourself. We 

will assume no liability for any resulting damage or injury. You may only install, 

operate and maintain Linear Unit KRF 8 80x40 ZR if:

 

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Linear Unit KRF 8 80x40 ZR has been integrated properly and safely into the 

completed machine,

 

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You have carefully read and understood the installation guide,

 

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You are appropriately qualified,

 

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You are authorised to do so by your company,

 

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You are using only original equipment from the manufacturer.

Unsafe or inappropriate use of Linear Unit KRF 8 80x40 ZR runs a risk of serious 

injury through crushing and cuts.

Improper use is defined as any use of the product for purposes other than those 

authorised in the installation guide and under the definition of correct use. We 

will assume no liability for any resulting damage or injury.

Linear Unit KRF 8 80x40 ZR, as described here, corresponds to the state of 

the art and takes into account the general principles of safety applicable at the 

time this installation guide was published. Nevertheless, failure to observe the 

safety instructions 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.
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 start-up  

Allow the product to acclimatise for a few hours before starting it up. 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 ac-

cess to the immediate operating environment of the system. This also applies 

when the system is not in operation. It must not be possible to actuate moving 

parts unintentionally. During emergencies, malfunctions or other irregularities, 

deactivate the system and ensure that it cannot be switched back on. Prevent 

the possibility of persons becoming trapped in the system’s 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 sub-

stances. 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.

Summary of Contents for 0.0.641.21

Page 1: ...Linear Unit KRF 8 80x40 ZR Notes on Use and Installation ...

Page 2: ...ty first in mind Always switch off the drive assembly before you start working on Linear Unit KRF 8 80x40 ZR Ensure the drive unit cannot be switched on unintentionally e g by affixing warn ing notices at the activation point or by removing the fuse from the power supply Do not place your hand within the operating range of moving parts in Linear Unit KRF 8 80x40 ZR when the unit is still switched ...

Page 3: ... completed machine The general safety information applies to the entire lifecycle of the partly completed machine 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 installatio...

Page 4: ...max 10 m s Max acceleration amax 10 m s System related frictional moment Mfrictional 2 Nm Effective radius of pulley rW 23 1 mm Tightening torque for the screws used M3 1 5 Nm M5 6 Nm M6 10 Nm M8 25 Nm The special Timing Belt Gearing type AT profile 5 mm pitch Belt width 25 mm 0 0 5 mm Special belt with 0 9 mm steel wires for high positioning accuracy Wire strength 4000 N Specific spring rate 0 99...

Page 5: ...size ratio of all item drive elements Light quiet running rollers arranged in a criss cross pattern for high speed Innovative track technology hardened steel tracks 50 m steel strip supplied as roll rigidly connected to the aluminium guide profile Solid machined rigid sliding carriage with a broad range of attachment options and integrated Timing Belt clamping mechanism Fully usable Profile 8 groo...

Page 6: ... carriage is supplied as a preassembled construction kit with one side that is screwed firmly in place while the opposite side is a floating bearing end The floating bearing end incorporates two adjusting screws with anti clock wise fine threads for moving and adjusting the floating bearing end Consequently the floating bearing is secured by turning clockwise as usual turn towards the track on the...

Page 7: ...ectly There is one Reverse Unit for tensioning the Timing Belt There are two Reverse Units for driving the axis The position of the drive shaft is different on each of these Reverse Units and must be specified during project engineering 4 The Timing Belt Timing Belt length LZ 2 x LProfile 190 Timing Belt pretension max 1 Special Timing Belt To enable higher speeds Quiet and smooth running To minim...

Page 8: ...ming Belt 1 mm tensioning adjustment equals 2 mm elongation in the Timing Belt Maximum elongation in the Timing Belt 36 mm this yields a maximum theoretical Timing Belt length of 36 metres with max 1 elongation Recommended tensioning method Make two marks on the Timing Belt e g 1000 mm apart Tension the Timing Belt 1 lengths maximum elongation Check distance markings until they are 1001 mm apart 6...

Page 9: ...of area available on the motor side for the customer to machine as required New coupling made from stainless steel A complete component and therefore entirely play free Nominal torque 60 Nm Caution Timing Belt transfers only 23 Nm Axial deviation 0 2 mm Radial deviation 0 3 mm Angular deviation 1 4 Clamping screws DIN 912 M6 Tightening torque 14 5 Nm Up to 50 deviation full nominal torque can be t...

Page 10: ... Unit into the Coupling Housing of the Drive Set Tightening torque M6 10 Nm Bore out the equaliser coupling to match the diameter of the drive shaft of the motor or transmission you are using and clamp it to the drive shaft in line with the mounting dimensions below kmin 42 mm kmax 62 mm Next insert the drive and coupling into the Coupling Housing of the Drive Set and connect them to the drive sha...

Page 11: ...raphite and MoS2 additives must not be used The maintenance openings page 6 are located on both sides of the preassembled carriage All 4 End Cap and Lubricating Systems are re oiled through the maintenance openings Minimum stroke full lubrication Hmin 100 mm Maintenance interval every 6 months or every 2 500 km Fill quantity approx 1 ml per End Cap and Lubricating System and maintenance interval 1...

Page 12: ...tem Industrietechnik GmbH Made in Germany 0 4 120 32 02 2012 item Industrietechnik GmbH Friedenstrasse 107 109 42699 Solingen Germany Phone 49 212 6580 0 Fax 49 212 6580 310 info item24 com www item24 com ...

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