Size X170 – 320

INFORMATION

  • Included in the scope of delivery:
    • Retaining screws [3] and end plate [4].
  • Not included in the scope of delivery:
    • Threaded rod [2], nut [5], retaining screw [6], ejector screw [8].
  1. Before mounting the gear unit, degrease the hollow shaft [7] and the machine shaft [1]. Use a commercially available solvent. Do not let the solvent come into contact with the sealing lips of the oil seals.
  2. NOTICE! Never apply assembly paste directly to the bushing [11] because the compound may get into the clamping area of the shrink disk when connecting the input shaft. Possible damage to property. It is essential that the clamping area of the shrink disk between the machine shaft [1] and the hollow shaft [7] remains free of grease.
  3. Apply some assembly paste, such as NOCO-Paste to the machine shaft [1] in the area of the bushing [11].

[1]

Machine shaft

[11]

Socket

[7]

Hollow shaft

 

 

  1. Use the retaining screws [3] to attach the end plate [4] centrically to the hollow shaft [7]. Thread the threaded rod [2] into the machine shaft [1].

[1]

Machine shaft

[4]

End plate

[2]

Threaded rod

[7]

Hollow shaft

[3]

Retaining screws

Observe the following thread sizes of the threaded rods [2].

Size

Strength class 8.8

X..H170 – 230

M30

X..H240 – 300

M36

X..H310 – 320

M42

Observe the following information on the retaining screws [3].

Size

Thread size for
6 × retaining screws
Strength class 10.9

Tightening torque

Assembly/operating state
Nm

Disassembly
Nm

X..H170 – 190

M10 x 30

78

Tighten hand-tight

X..H200 – 230

M12x30

135

Tighten hand-tight

X..H240 – 300

M16x40

330

Tighten hand-tight

X..H310 – 320

M20x50

645

Tighten hand-tight

  1. Screw the nut [5] onto the threaded rod up to the end plate [4]. Tighten the nut [5] until the shaft shoulders of the machine shaft [1] and the hollow shaft meet.

    2. [1]

    Machine shaft

    [7]

    Hollow shaft

    [5]

    Nut

  2. Loosen the nut [5]. Remove the threaded rod [2].

    3. [2]

    Threaded rod

    [5]

    Nut

  1. Secure the machine shaft [1] with the retaining screw [6]. The retaining screw is also to be locked with a suitable threadlocker. Observe the following information on the retaining screw [6].

[1]

Machine shaft

[6]

Retaining screw

Size

Strength class 8.8

Tightening torque in Nm
Strength class 8.8

X..H170 – 230

M30

1590

X..H240 – 300

M36

2760

X..H310 – 320

M42

4410

  1. Slide the shrink disk [9] with untightened screws onto the hollow shaft [7] and position the inner ring of the shrink disk [9b] at dimension A.
  2. CAUTION! The shrink disk can slip when not tightened. Potential risk of crushing due to falling parts. Secure the shrink disk against slipping.
  1. NOTICE! Tightening the locking screws without installed shaft may lead to deformation of the hollow shaft. Possible damage to property.Never tighten the locking screws without the shaft installed.

    2. [7]

    Hollow shaft

    [9a]

    Outer ring (stepped tapered ring)

    [9]

    Shrink disk

    [9b]

    Inner ring (stepped tapered bushing)

Size

A ±0.5 in mm

XH170 – 190

37

XH200 – 210

38

XH220 – 230

39

XH240 – 260

48

XH270 – 300

49

XH310 – 320

60

  1. Tighten the locking screws [10] hand-tight. In doing so, align the outer ring (stepped tapered ring) [9a] parallel to the inner ring (stepped tapered bushing) [9b] of the shrink disk. Tighten the locking screws [10] one after the other in a clockwise direction (not in diametrically opposite sequence), each by a quarter turn. Do not tighten the locking screws [10] in a diametrically opposite sequence.

    2. INFORMATION

    For shrink disks with a slotted inner ring (stepped tapered bushing) [9b], tighten the locking screws [10] to the left and right of the slot one after another, and then, in several stages, tighten the remaining screws at evenly spaced intervals.

    [9a]

    Outer ring (stepped tapered ring)

    [10]

    Locking screws

    [9b]

    Inner ring (stepped tapered bushing)

     

  2. Work around the ring in several stages, evenly tighten the locking screws [10] by a quarter turn until the outer ring (stepped tapered ring) [9a] and the inner ring (stepped tapered bushing) [9b] align on the face that holds the screws.

[9a]

Outer ring (stepped tapered ring)

[L1]

Condition at the time of shipment (pre-assembled)

[9b]

Inner ring (stepped tapered bushing)

[L2]

Completely assembled (ready for operation)

[10]

Locking screws

 

 

 

 

 

 

 

 

 

 

 

If the outer ring (stepped tapered ring) and the inner ring (stepped tapered bushing) cannot be installed in alignment on the screw-side face, check the following tolerances for dimension S. These must not be exceeded while adhering to the maximum tightening torques (e.g. using a torque wrench) of the clamping screws [10].

Dimension S:

Outer diameter of the shrink disk

Dimension S

≤Ø 100

+0.1

≤Ø 300

+0.2

above

+0.25

Maximum tightening torques of the clamping screws [10]:

Clamping screws [10]

Maximum tightening torque in Nm

M10

62

M12

108

M14

171

M16

262

M18

367

M20

513

M22

696

M24

882

M27

1287

M30

1755

If the tolerance values are not adhered to, remove the shrink disk again and clean/lubricate it carefully according to the following chapter.

  1. Mount the protection cover dust-tight to the gear unit.