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Gear Coupling
Pin Bush Coupling

Resilient Coupling
Tyre Coupling
Pin Bush Coupling
Boson Pin Bush Couplings consists of a set of high quality rubber with pins and nuts and two flanged hubs of graded cast iron of grade 20 of IS.210. The Boson pin bush type flexible couplings of coushioned drive type, transmitting a torque, through high tensile steel bolts to the machine input shaft. This type of coupling permits drive in either direction and requires neither lubrication nor adjusment after fitting. The flexible bush remains unaffected by water, dust and atmospheric condition. Power for standard coupling range from 7.8 kgf-m to 2424.05 kgf-m at 100 rpm and sizes from PB1 to PB11.
 
Techinical Data for pin Bush type Flexible Couplings
COUPLING SIZE LOAD CAPACITY Max RPM Bore No. of Pins DIMENSION IN M.M.
Torque in kgf-m. H.P. Per 100 rpm Max. Pilot
AØ
B
C
DØ
E
F
PB1
 7.80
1.10
6200
30
12.5
3
96
83
40
44
3
60
PB2
31.60
4.40
5200
32
12.5
4
115
103
50
52
3
70
PB2A
63.30
7.40
450
42
16.0
6
130
107
52
62
3
70
PB3
63.30
8.90
3700
50
16.0
4
160
109
52
70
5
115
PB4
84.70
11.88
3000
65
20.0
4
190
129
62
92
5
115
PB4A
126.50
17.74
3000
65
20.0
6
190
129
62
92
5
115
PB5
170.00
23.76
2700
75
52.0
6
225
161
78
105
5
115
PB6
240.50
33.73
2400
95
45.0
8
225
185
90
135
5
115
PB6A
299.00
41.92
2400
95
45.0
10
225
185
90
135
5
115
PB6B
360.00
50.52
2400
95
45.0
12
225
185
90
135
5
115
PB7
423.50
59.40
2000
115
60.0
12
290
237
116
170
5
115
PB7A
530.00
74.28
1950
120
60.0
14
300
237
166
180
5
130
PB8
592.00
83.16
1900
130
65.0
16
310
237
166
180
5
130
PB8A
592.00
83.16
1900
130
65.0
16
310
257
126
196
5
130
PB8B
740.87
103.93
1700
135
65.0
18
340
369
132
200
5
130
PB9
889.80
124.82
1600
140
70.0
12
360
278
136
210
2
200
PB9A
1012.45
142.74
150
150
80.0
13
390
318
156
225
6
200
PB10
1353.10
189.81
1450
160
90.0
15
410
338
166
240
6
200
PB10A
1470.00
206.20
1350
170
10.00
16
440
30
182
255
6
200
PB10A
1839.95
258.11
1250
180
110.0
17
480
390
192
270
6
212
PB11
2424.05
340.05
1100
190
120.0
20
530
450
222
285
6
212
All dimensions are subjected to alterations without notice.
All dimensions are in mm.
 
Braking Torques, Maximum speeds and dimensions
COUPLING SIZE PBD LOAD CAPACITY Max RPM Bore No. of Pins DIMENSION IN M.M.
Torque in kgf-m. H.P. Per 100 rpm Max. Pilot
AØ
B
C
DØ
L
 EØ
F
100
3.60
0.50
5750
20
10
4
100
65
35
45
72
82
2.0
150
23.00
3.20
3800
45
10
8
150
85
50
60
102.5
130
2.5
200
50.00
7.00
2850
50
15
8
200
105
60
90
123
175
3.0
250
143.20
20.00
2300
75
20
10
250
110
90
125
183
230
3.0
300
300.80
42.00
1900
90
30
10
300
140
90
160
183
284
3.0
380
480.00
67.00
1500
110
40
10
380
175
140
205
283
335
3.0
400
480.00
67.00
1400
110
40
10
40
175
140
205
283
335
3.0
500
930.00
129.00
1200
125
50
12
500
210
160
210
326
370
6.0
600
1253.00
175.00
950
140
50
12
600
235
220
250
346
390
6.0
750
1791.00
250.00
765
150
50
12
750
275
200
250
406
420
6.0
Combined Gear coupling with brake drum also available.
All dimensions are subjected to change without notice.
All dimensions are in mm.
 
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