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  平垫的标准

各国的标准都不一样。下面是美国的平垫标准:
规 格Specification内径公差Minor Diameter外径公差Outside Diameter厚度公差Thickness Tolerance厚度公差分解Thickness ToleranceDisintegration
USS 3/166.22~6.7314.15~14.660.91~1.650.91~1.40
1.40~1.65



USS 1/47.80~8.3118.47~19.021.30~2.031.30~1.65
1.65~2.03



USS 5/169.40~9.9122.05~22.991.63~2.641.63~2.20
2.20~2.64



USS 3/811.00~11.5125.22~26.161.63~2.641.63~2.20
2.20~2.64



USS 7/1612.57~13.0831.57~32.511.63~2.641.63~2.20
2.20~2.64



USS 1/214.15~14.6034.75~35.692.18~3.352.18~2.70
2.70~3.00



3.00~3.35



USS 9/1615.75~16.2637.13~38.072.18~3.352.18~2.70
2.70~3.00



3.00~3.35



USS 5/817.30~18.2444.27~45.212.74~4.062.74~3.20
3.20~3.60



3.60~4.06