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Unit:mm

Rolling Bearings-Snap Ring

GB /T 305 - 2019

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国标GB /T305 - 2019 GB305 305GB Rolling Bearings-Snap Ring
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Size
22 ② 24 ② 28 ② 30 32 34 37 39 40 42 44 45 47 52
dc ① max
d1 max
min
h max
min
n ① ≈
e
24.80 26.80 30.80 32.80 34.80 36.80 39.80 41.80 42.80 44.80 46.80 47.80 49.80 54.80
20.50 22.50 26.40 28.30 30.30 32.30 35.30 37.30 38.30 40.30 42.30 43.30 45.30 50.30
20.2 22.2 26.1 28 30 32 35 37 38 39.9 41.9 42.9 44.9 49.9
0.7 0.7 0.85 0.85 0.85 0.85 0.85 0.85 0.85 0.85 0.85 0.85 0.85 0.85
0.6 0.6 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
2 2 3 3 3 3 3 3 3 3 4 4 4 4
2 ② 2 ② 2.05 ② 2.05 2.05 2.05 2.05 2.05 2.05 2.05 2.05 2.05 2.05 2.05
Size
55 58 62 65 68 72 78 80 85 90 95 100 105 110
dc ① max
d1 max
min
h max
min
n ① ≈
e
57.80 60.80 64.80 67.80 70.80 74.80 82.70 84.40 89.4 94.4 99.40 104.40 110.70 115.70
53.30 56.30 60.20 63.20 66.20 70.20 75.70 77.40 82.4 87.4 92.40 97.40 101.90 106.90
52.9 55.7 59.6 62.6 65.6 69.6 75.1 76.8 81.8 86.8 91.8 96.8 101.1 106.1
0.85 0.85 0.85 0.85 0.85 0.85 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12
0.75 0.75 0.75 0.75 0.75 0.75 1.02 1.02 1.02 1.02 1.02 1.02 1.02 1.02
4 4 4 4 5 5 5 5 5 5 5 5 5 5
2.05 2.05 2.05 2.05 2.05 2.05 3.25 3.25 3.25 3.25 3.25 3.25 4.04 4.04
Size
115 120 125 130 140 145 150 165 175 180 190 200
dc ① max
d1 max
min
h max
min
n ① ≈
e
120.70 125.70 130.70 135.70 145.70 150.70 155.70 171.50 181.50 186.50 196.50 206.50
111.90 116.90 121.80 126.80 136.80 141.80 146.80 161.00 171.00 176.00 186.00 196.00
111.1 116.1 121 126 135.8 140.8 145.6 159.8 169.8 174.8 184.6 194.6
1.12 1.12 1.12 1.12 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7
1.02 1.02 1.02 1.02 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6
5 7 7 7 7 7 7 7 10 10 10 10
4.04 4.04 4.04 4.04 4.04 4.04 4.04 4.85 4.85 4.85 4.85 4.85

Alternative history

GB 30518/19 - 1989 GB /T 30518/19 - 1998 GB /T 30518/19 - 2019
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