Customized version of http://www.thingiverse.com/thing:125529

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=125529

Using the following options:

BearingDia = 10
BearingRaceOffset = 0.15
bearingOffset = 30
RodDiameter = 8
BaseNutDiameter = 8
GapTolerance = 0.95
showRod = 1
MountHeight = 13
Pitch = 10
CompressionNutDiameter = 8
BearingInnerDiameter = 3
BearingHeight = 4
CompressionBoltHeadDiameter = 8
BaseBoltDiamter = 5
CompressionBoltDiameter = 5