Shrink Disc
Required contact pressure between shaft and hub can be generated by using the proper number and size of screws.
Machining costs are reduced, notch effect is practicay eiminated, fu shaft cross seection can be utiized.
Shrink Disc connection is absoutey tigt and free of backash.
Precise and easiy timing and positioning of the hub on the shaft.
Since the fitting toerances are reativey arge, the connection is easiy broken as the hub reaxes to its origina diameter. The Shrink Disc connection can be made and reeased as often as required.
That is in the same way as with the conventiona shrink fit.
Neither the manufacturing accuracy of the shrink disc nor uneven tightening of the ocking screws has any effect on true running of the connection.
SHRINK DISC,SERIES 91 AND 92
mm
mm
Nm
N
mm
mm
kg
24-92
30-92
38-92
44-92
50-92
55-02
62-92
68-02
75-92
80-92
90-92
100-92
110-92
125-92
140-91
155-91
165-91
24
30
36
44
50
55
62
68
75
80
90
100
110
125
140
155
165
19
20
21
24
25
26
28
30
31
34
35
36
38
40
42
42
45
48
48
50
52
50
55
60
55
60
65
60
65
70
65
70
75
70
75
80
75
80
85
85
90
95
95
100
105
105
110
115
115
120
125
210
250
300
340
380
440
570
630
710
780
880
940
1160
1380
1160
1520
1880
1750
2000
2250
1850
2500
3150
2400
3200
3950
3200
3900
4600
4750
6000
7250
6000
7500
8000
7200
9000
10800
11000
13000
15000
15100
17600
20100
22000
25000
28000
31000
35000
39000
21000
23800
25000
27200
29200
31400
38000
40550
41800
44600
47800
49500
58000
65700
55300
67600
78300
73000
80000
86500
74000
91000
105000
87300
106700
121500
106700
120000
131500
146200
171400
193400
171400
200000
225000
192000
225000
254100
258800
288900
315800
317900
352000
382900
419000
454500
487000
539000
583000
624000
50
60
65
80
90
100
110
115
138
145
155
170
185
215
230
263
290
18
20
22
24
26
29
29
29
31
31
38
43
49
53
58
62
68
0.2
0.3
0.4
0.6
0.8
1.1
1.3
1.4
1.7
1.9
3.3
4.7
5.9
8.3
10
15
22
mm
mm
Nm
N
mm
mm
kg
175-91
185-91
195-91
200-91
220-91
240-91
260-91
180-91
300-91
320-91
340-91
250-91
360-91
380-91
390-91
420-91
440-91
460-91
480-91
500-91
175
185
195
200
220
240
260
280
300
320
340
350
360
380
390
420
440
460
480
500
130
135
135
140
145
140
150
155
150
155
160
160
165
170
170
180
190
190
200
210
210
220
230
230
240
245
240
250
260
250
260
270
270
280
285
280
290
295
290
300
310
300
310
320
330
340
350
340
350
360
360
370
380
380
390
400
400
410
420
44000
48000
55000
60000
65000
65000
76000
815000
78000
84000
90000
100000
108000
116000
120000
138000
156000
164000
184000
204000
217000
245000
273000
262000
29000
308000
306000
340000
374000
394000
430000
466000
458000
500000
521000
507000
560000
572000
590000
640000
690000
660000
710000
760000
780000
840000
900000
890000
960000
1030000
1000000
1070000
1140000
1200000
1270000
1340000
1440000
1520000
1600000
677000
711000
815000
857000
895000
928000
1013000
1052000
1040000
1084000
1125000
1250000
1309000
1365000
1412000
1533000
1642000
1726000
1840000
1943000
2062000
2227000
2374000
2278000
2442000
2514000
2550000
2720000
2877000
3152000
3308000
3452000
3393000
3572000
3656000
3622000
3793000
3878000
4069000
4267000
4452000
4900000
4580000
4750000
4727000
4940000
5143000
5235000
5846000
5722000
5556000
5784000
0000000
6316000
6513000
6700000
7200000
7415000
7619000
300
330
350
350
370
405
430
460
485
520
570
590
590
645
660
690
750
770
800
850
65
85
85
85
103
107
119
132
140
140
155
159
159
163
163
184
192
192
213
213
22
37
41
41
54
67
82
102
118
131
186
204
204
239
260
316
408
420
505
575
INSTAATION
Distance pieces which have been used for shipping purposes ony must be removed.
Do not tighten screws before the Shrink Disc is positioned on the hub extension.
Before the Shrink Disc and hub and are positioned on the shaft, do not start to tighten the screws. Otherwise deformations may occur.
For easy positioning the contact surfaces of the shaft and hub (dia) shoud be oied (On these surfaces no MoS, shoud be used.
Before fina tightening of the screws both thrust rings shoud be squarey positioned by preoading the ocking scres.
Finay the ocking screws have to be tightened cockwise (not in adiametricay opposite sequence). The screws have to be tightened in two, three or more stages up to the indicated tightening torque.
Front thrust ring
Rear thrust ring
ocking Screw
Hub
Shaft
REMOVA.
For dismanting the screws shoud be reeased cockwise in severa stages to avoid fitting of the thrust rings. Under no circumstances the ocking screws shoud be taken out of the threads as due to pretensioning the Shrink Disc coud jump apar.
The Shrink Disc can now be removed from the hub extension.
CEANING AND RE-UBRICATION
After having been in use Shrink Discs shoud dismanted and ceaned. The cones have been ubricated with greases containing MoS (e.g. Moykote G Rapid) if the working surfaces are not damaged, they have to be reubricated with Moykote BR2 Aso the screws (threads and contact areas for the heads) have to be ubricated with Moykote BR 2.
Technica Assistance
Pease et us know what your specific shat –hub connection probems are and we sha be very happy to work out detaied recommendations without any obigation. Just a sketch with your requirements and specifications incuding foowing information :
