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* Measured with shaft in thrust position (towards suction end); tolerance = ± .005 in. (± .127 mm).
† First-stage diameter.
** Second-stage diameter.
Table 18 — Hermetic Compressor Fits and Clearances (Continued)
Tabulation — Impeller Clearances (Hermetic Compressors)
19EX
Shroud
Code
FA Shroud
Code
Impeller
Code
Impeller
Diameter
Dimension*
Item 1 Item 2
in. mm in. mm in. mm
5 3
1
3
5
7
9
12.00
12.38
12.75
13.25
13.75
304.8
314.5
323.8
336.6
349.2
0.837
0.797
0.757
0.717
0.690
21.26
20.24
19.23
18.21
17.53
0.638
0.609
0.579
0.541
0.541
16.21
15.47
14.71
13.74
13.74
6 4
1
3
5
7
9
12.00
12.38
12.75
13.25
13.75
304.8
314.5
323.8
336.6
349.2
0.977
0.937
0.897
0.837
0.810
24.82
23.80
22.78
23.62
20.57
0.760
0.726
0.688
0.639
0.632
19.30
18.44
17.48
16.23
16.05
7 5
1
3
5
7
9
12.00
12.38
12.75
13.25
13.75
304.8
314.5
323.8
336.6
349.2
1.177
1.137
1.077
1.017
0.970
29.90
28.88
27.36
25.83
24.64
0.895
0.852
0.809
0.750
0.731
25.02
21.64
20.55
19.05
18.57
8 6
1
3
5
7
9
12.00
12.38
12.75
13.25
13.75
304.8
314.5
323.8
336.6
349.2
1.297
1.237
1.177
1.007
1.050
32.94
31.42
29.90
27.86
26.67
0.972
0.928
0.880
0.817
0.796
24.69
23.57
22.35
20.75
20.22
— 8
—
13.75
†
349.2 1.341 34.06 .876 22.25
— 9
— 13.50** 342.9 1.638 41.61 1.055 26.80