Lenze 11.218 Variable speed pulleys Bedienungsanleitung PDF herunterladen (Seite 11)

Mechanical installation

Mounting

MA 11.1023 DE/EN/FR 3.0



H2_montage-anbau-zentralverstellg

Mounting

Important notes

Thevariable speed drivescan be mountedinaUor Zconfiguration(Fig. 1 and Fig. 2),butsize

40 / type 11.213/218 can only be mounted in the U configuration. The fixed pulley flanges

of the spring-loaded pulley (output side) and the mechanically variable pulley (input side)

must always be set up to be diagonally opposite.

Variable speed drives

Fig. 1 U-version Fig. 2 Z-version

Mounting on the shaft

During assembly, the shaft shoulders must be aligned in the same plane to ensure that the

belt is also in a straight line.

The adjustable pulleys are manufactured with an ISO fit H7. ISO fit k6 is required for the

shaft on which the adjustable pulleys are mounted, and fit m6 for size 40 with d=55 or

above.

The dimensions must not be less than the minimum shaft lengths and diameters in Tab. 1!

Type 11.213 / 218 Type 11.115 / 118 Shaft length Shaft diameter

Size min. [mm] min. [mm]

10 ----- 23 10

13 17 40 14

16 20 40 18

20 24 50 19

25 ----- 60 25

31 ----- 80 28

40 ----- 80 38

Tab. 1 Minimum dimensions of the shafts in mm

In general, the mechanically adjustable pulley is fitted to the input shaft (motor shaft) and

thespring-loaded variablepulleyis fitted totheoutput shaft, and axially secured by ascrew.

To be able to do this, the shaft ends must have a center bore as per DIN332/2 to make it

possible to pull on the variable pulley (Fig. 3).

 Stop!

On a through shaft, the axial fixing of the variable pulley is made by retaining

rings (circlips) or collars.

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Lenze 11.218 Variable speed pulleys Bedienungsanleitung Seite 11