Machinery's Handbook, 31st Edition
RETAINING RINGS 1899 Table 2. American National Standard Metric Tapered Retaining Rings.— Basic Internal Series.—3BM1 ANSI/ASME B27.7-1977 (R2017)
D
t
W
E
d
Z
R
SG
Detail of Groove
J
P
Lug configuration for sizes –52 thru –250
B
Ring
Groove
Ring
Groove
G W d ref. Z min.
G W d ref. Z min. 69.0 2.55 2.00 6.0 72.2 2.55 2.10 6.3 74.4 2.55 2.20 6.6 76.5 2.55 2.25 6.7 79.7 2.55 2.35 7.1 82.8 2.95 2.40 7.2 85.0 2.95 2.50 7.5 87.2 2.95 2.60 7.8 90.4 2.95 2.70 8.1 93.6 2.95 2.80 8.4 95.7 2.95 2.85 8.6 97.8 2.95 2.90 8.7 101.0 2.95 3.00 9.0 104.2 2.95 3.10 9.3 106.3 2.95 3.15 9.5 108.4 2.95 3.20 9.6 111.5 2.95 3.25 9.8 114.6 2.95 3.30 9.9 116.7 2.95 3.35 10.1 121.9 2.95 3.45 10.4 127.0 2.95 3.50 10.5 132.1 2.95 3.55 10.7 137.2 2.95 3.60 10.8 142.3 3.40 3.65 11.0 147.4 3.40 3.70 11.1 152.5 3.40 3.75 11.3 157.6 3.40 3.80 11.4 162.7 3.40 3.85 11.6 167.8 4.25 3.90 11.7 172.9 4.25 3.95 11.9 178.0 4.25 4.00 12.0 183.2 4.25 4.10 12.3 188.4 4.25 4.20 12.6 193.6 5.10 4.30 12.9 198.8 5.10 4.40 13.2 209.0 5.10 4.50 13.5 219.4 5.10 4.70 14.1 230.0 5.10 5.00 15.0 240.6 5.10 5.30 15.9 251.0 5.10 5.50 16.5 261.4 5.10 5.70 17.1
S
D t
S
D
t
8 9
8.80 0.4 8.40 0.5 0.2 10.00 0.6 9.45 0.7 0.23 0.7 0.6 11.10 0.6 10.50 0.7 0.25 0.8 12.20 0.6 11.60 0.7 0.3 0.9 13.30 0.6 12.65 0.7 0.33 1.0 14.25 0.9 13.70 1.0 0.35 1.1 15.45 0.9 14.80 1.0 0.40 1.2 16.60 0.9 15.85 1.0 0.43 1.3 17.70 0.9 16.90 1.0 0.45 1.4 18.90 0.9 18.00 1.0 0.50 1.5 20.05 0.9 19.05 1.0 0.53 1.6 21.10 0.9 20.10 1.0 0.55 1.7 22.25 0.9 21.15 1.0 0.57 1.7 23.30 0.9 22.20 1.0 0.60 1.8
65 72.2 68 75.7 70 77.5 72 79.6 75 83.3 78 86.8 80 89.1 82 91.1 85 94.4 88 97.9 92 102.2 95 105.6 98 109.0
2.4 2.4 2.4 2.4 2.4 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 3.2 3.2 3.2 3.2 3.2 4.0 4.0 4.0 4.0 4.0 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32
90 100.0 2.80
24.40 1.1 23.30 1.2 0.65 1.9 100 110.7 25.45 1.1 24.35 1.2 0.67 2.0 102 112.4 26.55 1.1 25.4 1.2 0.70 2.1 105 115.8 27.75 1.1 26.6 1.2 0.80 2.4 108 119.2 31.10 1.3 29.8 1.4 0.90 2.7 120 132.4 33.40 1.3 31.9 1.4 0.95 2.9 125 137.1 35.35 1.3 33.9 1.4 0.95 2.9 130 142.5 37.75 1.3 36.1 1.4 1.05 3.2 135 148.5 28.85 1.1 27.7 1.2 0.85 2.6 29.95 1.3 28.8 1.4 0.90 2.7 110 120.8 115 126.0 38.75 1.3 37.2 1.4 1.10 3.3 140 154.1 40.00 1.3 38.3 1.4 1.15 3.5 145 159.5 41.05 1.3 39.3 1.4 1.15 3.5 150 164.5 42.15 1.3 40.4 1.4 1.20 3.6 155 168.8 44.25 1.6 42.4 1.75 1.20 3.6 160 175.1 46.60 1.6 44.5 1.75 1.25 3.7 165 180.3 49.95 1.6 47.6 1.75 1.30 3.9 170 185.6 51.05 1.6 48.7 1.75 1.35 4.0 175 191.3 52.15 1.6 49.8 1.75 1.40 4.2 180 196.6 53.30 1.6 50.9 1.75 1.45 4.3 185 202.7 55.35 1.6 53.1 1.75 1.55 4.6 190 207.7 57.90 2.0 55.3 2.15 1.65 5.0 200 217.8 61.10 2.0 58.4 2.15 1.70 5.1 210 230.3 63.25 2.0 60.5 2.15 1.75 5.3 220 240.5 64.4 2.0 61.6 2.15 1.80 5.4 230 251.4 66.8 2.0 63.8 2.15 1.90 5.7 240 262.3 68.6 2.0 65.8 2.15 1.90 5.7 250 273.3
34 35 36 37 38 40 42 45 46 47 48 50 52 55 57 58 60 62
63 69.9 2.0 66.9 2.15 1.95 5.9 … … … … … … … All dimensions are in millimeters. These rings are designated by series symbol and shaft diameter, thus: for a 9 mm diameter shaft, 3BM1-9; for a 22 mm diameter shaft, 3BM1-22; etc. Ring Free Diameter Tolerances: For ring sizes − 8 through − 20, +0.25, − 0.13 mm; for sizes − 21 through − 26, +0.40, − 0.25 mm; for sizes − 27 through − 38, +0.65, − 0.50 mm; for sizes − 40 through
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