Metric HHM/HHMU Series
Internal Hoopster Retaining Rings are dicult to remove from the groove without a removal provision.
We oer either a bent end for removal or no removal provision as shown to the left.

+.08/-.00
+.10/-.00

1.27
1.27
1.27
1.78
1.78
1.78
1.78
1.78
2.36
2.36
2.36
2.36
2.36
2.36
2.36
2.36
3.12
3.12
3.12
3.12
3.12
3.12
3.12
3.94
3.94
3.94
3.94
3.94
3.94
3.94
3.94
3.94
4.88
4.88
4.88
4.88
4.88
4.88
4.90
4.90
4.90
4.90
4.90
5.87
5.87
5.87
5.87
5.87
5.87
5.87
5.87
5.87
5.87

+.13/-.00

±.05
±.08

±.10
±.13

10.43
11.43
12.43
13.53
14.53
15.53
16.53
17.53
18.61
19.61
20.61
21.61
22.61
23.61
24.61
25.61
26.76
27.76
28.76
29.76
30.76
31.76
32.76
33.86
34.86
35.86
36.86
37.86
38.86
40.86
41.86
42.86
45.97
47.97
48.97
50.97
51.97
52.97
55.97
56.97
57.97
58.97
60.97
63.14
64.14
65.14
66.14
68.14
69.14
71.14
73.14
76.14
77.14

±.15

±.10

1.14
1.14
1.14
1.65
1.65
1.65
1.65
1.65
2.24
2.24
2.24
2.24
2.24
2.24
2.24
2.24
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.81
3.81
3.81
3.81
3.81
3.81
3.81
3.81
3.81
4.75
4.75
4.75
4.75
4.75
4.75
4.75
4.75
4.75
4.75
4.75
5.72
5.72
5.72
5.72
5.72
5.72
5.72
5.72
5.72
5.72

±.13

±.04

.43
.43
.43
.53
.53
.53
.53
.53
.61
.61
.61
.61
.61
.61
.61
.61
.76
.76
.76
.76
.76
.76
.76
.86
.86
.86
.86
.86
.86
.86
.86
.86
.97
.97
.97
.97
.97
.97
.97
.97
.97
.97
.97
1.14
1.14
1.14
1.14
1.14
1.14
1.14
1.14
1.14
1.14

±.05

+.30/-.00

+.38/-.00

+.46/-.00

10.63
11.65
12.67
13.79
14.81
15.83
16.85
17.87
18.97
19.99
21.01
22.03
23.05
24.07
25.09
26.11
27.28
28.30
29.32
30.34
31.36
32.38
33.40
34.52
35.54
36.56
37.58
38.60
39.62
41.66
42.68
43.70
46.87
48.91
49.93
51.97
52.99
54.01
57.07
58.09
59.11
60.13
62.17
64.38
65.40
66.42
67.44
69.48
70.50
72.54
74.58
77.64
78.66

+.51/-.00

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
40
41
42
45
47
48
50
51
52
55
56
57
58
60
62
63
64
65
67
68
70
72
75
76

Ring
Groove
Outside Diameter Radial Wall Thickness Diameter Width

+.61/-.00

HHM-10
HHM-11
HHM-12
HHM-13
HHM-14
HHM-15
HHM-16
HHM-17
HHM-18
HHM-19
HHM-20
HHM-21
HHM-22
HHM-23
HHM-24
HHM-25
HHM-26
HHM-27
HHM-28
HHM-29
HHM-30
HHM-31
HHM-32
HHM-33
HHM-34
HHM-35
HHM-36
HHM-37
HHM-38
HHM-40
HHM-41
HHM-42
HHM-45
HHM-47
HHM-48
HHM-50
HHM-51
HHM-52
HHM-55
HHM-56
HHM-57
HHM-58
HHM-60
HHM-62
HHM-63
HHM-64
HHM-65
HHM-67
HHM-68
HHM-70
HHM-72
HHM-75
HHM-76

Housing
Diameter

+.76/-.00

Smalley Part
Number 1, 2, 4

Groove
Yield (N)2
1,052
1,157
1,263
1,690
1,820
1,950
2,080
2,210
2,674
2,822
2,971
3,119
3,268
3,417
3,565
3,714
4,828
5,013
5,199
5,385
5,570
5,756
5,942
6,945
7,155
7,365
7,576
7,786
7,997
8,418
8,628
8,838
10,584
11,054
11,289
11,760
11,995
12,230
12,936
13,171
13,406
13,641
14,112
17,268
17,547
17,826
18,104
18,661
18,940
19,497
20,054
20,889
21,168

Stock Items available in carbon steel and
302 stainless steel.

Product Dimensions
All dimensions in millimeters
unless otherwise specified.

WITH REMOVAL
PROVISION
HHM-_ _

NO REMOVAL
PROVISION
HHMU-_ _

1

Use “HHM” prefix for removal provision end. Use “HHMU” prefix for no removal provision.
Add sux “-S02” for 302 stainless steel.
3
Based on a groove material yield strength of 310 N/mm2 and a safety factor of 2
4
See pages 134-135 for How to Order.
2

Manufactured in USA

Smalley 847.719.5900

65