Mounting

Mounting

Delivered condition

Carriages are delivered with the track rollers fitted. All the bolts are tightened to the required tightening torque.

Carriages

For carriages, this gives:

  • hollow section carriage  LFCL ;
    clearance-free, with mounting of accessories as necessary
  • compact carriage LFKL..-SF;
    clearance-free, with mounting of lubrication and wiper unit as necessary
  • non-locating bearing carriage  LFLL..-SF ;
    clearance-free, with mounting of accessories as necessary
  • open carriage  LFL..-SF ;
    clearance-free, with mounting of accessories as necessary
  • bogie carriage LFDL..-SF (-B);
    LFDL..-SF clearance-free, with mounting of accessories as necessary. In the case of LFDL..-B, the clearance must be set by means of eccentrics.

Mounting of guidance system with one guideway

Mounting of guidance system with one guideway:

  • Place the guideway on the adjacent construction and screw mount finger tight.
  • Align the guideway; if necessary, clamp the shaft against the locating edge and screw mount firmly, observing the tightening torques.
  • Clearance-free carriages: slide the carriage onto the guideway.
  • Carriages with adjustable clearance: if lateral load is present, ensure that the principal load is supported by the concentric bolts.
  • Position and screw mount the adjacent construction.

Mounting of guidance system with two guideways

Mounting of guidance system with two guideways:

  • Position the first guideway, clamp it against the locating edge and tighten the screws.
  • Position the second guideway and screw mount finger tight.
  • Slide the carriage onto the guideway, set the clearance as necessary, ➤ Figure.
  • Position the adjacent construction, align the carriage and screw mount firmly; observe the tightening torques MA, see table.
  • Align the second guideway with the aid of the table, move the table several times during this operation.
  • Tighten the fixing screws in the guideway; tightening torques MA, see table.

Where necessary, form fit can be achieved between the guideways and adjacent construction by means of synthetic resin or strips.

Mounting of curved guideway elements and oval tracks

Mounting of curved guideway elements and oval tracks:

  • Assemble the curved guideway elements or oval tracks.
  • Position the assembled elements precisely on the adjacent construction and fix in place by means of clamps.
  • Transfer the hole pattern for the fixing holes to the adjacent construction.
  • Remove the elements and make the fixing holes in the adjacent construction.
  • Position the elements on the adjacent construction again and tighten the fixing screws; observe the tightening torques MA, see table.

Mounting of bogie carriage

Slide the clearance-free carriage LFDL..-SF onto the guideway. No setting of clearance is required, ➤ Figure.

ACHTUNG

The bogie carriage LFDL..-SF cannot be mounted on closed ring systems, in this case use the clearance-free bogie carriage LFDL..-B.

Carriages with adjustable clearance

Slide the carriage LFDL..-B onto the guideway and set in position without load. Rotate the eccentric bolts using an open-end wrench or ring wrench so that the track rollers are set against the raceway, observing the direction of rotation, ➤ Figure.

Tighten the hexagon nuts to the tightening torque MA; tightening torques, see table.

ACHTUNG

The track rollers must be easily movable and clearance-free. If they are set in place too firmly, this will generate preload that reduces the life of the guidance system.

Inspection

Check the adjustment. The guidance system is correctly adjusted if, when the carriages are moved, all the track rollers rotate and the carriages can be moved easily.

The concentric bolts are tightened to the necessary tightening torque, the eccentric bolts are tightened finger tight. When setting the preload, these must be tightened to the tightening torque MA, see table.

Clearance-free carriage LFDL..-SF
Carriage with adjustable clearance LFDL..-B
Tightening torques for track roller bolts

Track roller,
profiled track roller

Bolt

Tightening torque

MA

Standard (-2Z)

RB (-2RSR)

Nm

Nm

LFR50/5-4

M4

2,5

2,5

LFR50/5-6

M4

2,5

2,5

LFR50/8-6

M8

15

12

LFR5201-10

M10

40

23

LFR5301-10

M10

40

23

LFR5302-10

M12

70

39

LFR5201-12

M10

40

23

LFR5204-16

M16×1,5

100

75

LFR5206-20

M20×1,5

200

100

LFR5206-25

M20×1,5

200

100

LFR5207-30

M24×1,5

300

150

LFR5208-40

M30×1,5

600

310

LFR5308-50

M30×1,5

800

410

Tightening torques for screws in carriage according to DIN ISO 4762-8.8

Screw

Tightening torque

MA

 Nm

M5

5,8

M6

9,9

M8

24

M10

48

M12

83

Tightening torques for screws in guideways LFS according to DIN ISO 4762-8.8 or DIN 7984-8.8

Screw

Tightening torque

MA

 Nm

M5

5,8

M6

9,9

M8

24

M10

48

M12

83

© Schaeffler Norge AS