View source for 2" Schedule 80 Pipe

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Conclusion: 2" schedule 80 pipe (see [[Pipe Size]]) fits almost perfectly around a 1-15/16" shaft. This is useful for substituting 2" schedule 80 pipe for 2" ID DOM when applicable. 
*2" ID 3" OD DOM is $54 for 12 inches. This is definitely adequate for heavy clamps.
*Lower cost for 2" schedule 80 pipe. This could be adequate for reinforced heavy rotors such as [[Soil Mixer 2019]]. Clamping force must be distributed through reinforcements on 0.218" pipe