COMPOSITE JAW COUPLERS (SERIES FS)
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Tel: +44 (0)1992 509888
5
Table 2 : Temperature Factor
Driven Load
SF
Uniform Load
1.0
Moderate Shock
1.5
Heavy Shock
2.0
Temperature °CTF
0 –
40
1.0
40 –
80
1.25
80 – 120
1.5
selection procedure
1. Determine service factor (SF) from table 1 and temperature
factor (TF) from table 2.
2. Multiply the power of the prime mover - PM(kW) - by SF and
TF to determine the Design Power - P(kW).
Design Power P = PM
× SF × TF
3. Select a suitable element material, and enter the appropriate
section of table 3 with the rev/min, then read across until a
power equal to or greater than the Design Power is found.
The coupler size is given at the head of the column.
4. For intermediate speeds, the coupler size is determined by
consideration of the maximum torque capacity of the coupler
which varies according to the type of element selected.
Given the Design Power P(kW) and the speed N(rev/min) the
torque T(Nm) is given by:
T =
9550
× P
N
Note: The torque figures given are the maximum for normal
running. FS couplers have capacity to meet normal
starting torque requirements in addition.
Table 1 : Service Factor
Table 3 : Design Power Ratings – kW
Element
Material
Size
Speed
rev/min
100
Speed
rev/min
720
Speed
rev/min
960
Speed
rev/min
1440
Speed
rev/min
2880
Speed
rev/min
3600
1.32
2.17
4.51
9.73
20.91
39.71
1.98
3.26
6.77
14.60
31.37
59.57
2.64
4.34
9.02
19.46
41.82
65.52
Nitrile
Hytrel
Urethane
032
037
052
056
066
085
032
037
052
056
066
085
032
037
052
056
066
085
0.04
0.06
0.13
0.27
0.58
1.10
0.06
0.09
0.20
0.40
0.87
1.65
0.08
0.12
0.26
0.54
1.16
1.82
0.26
0.43
0.90
1.95
4.18
7.94
0.39
0.65
1.35
2.93
6.27
11.91
0.52
0.86
1.80
3.90
8.36
13.10
0.35
0.58
1.20
2.59
5.58
10.59
0.53
0.87
1.80
3.88
8.37
15.88
0.70
1.16
2.40
5.18
11.16
17.47
0.53
0.87
1.80
3.89
8.36
15.88
0.80
1.31
2.70
5.84
12.54
23.83
1.06
1.74
3.60
7.78
16.72
26.20
1.05
1.73
3.61
7.78
16.73
31.77
1.58
2.60
5.42
11.67
25.10
47.66
2.10
3.46
7.22
15.56
33.46
52.40