What Is Spindle Runout? In machining, runout refers to inaccuracies in a tool or piece of equipment that cause it to spin off its ideal axis. Spindle runout occurs when a spindle no longer rotates on its intended axis, which can result in: Issues with tolerance control. Inaccurate machine registration.
People also ask
How do you test spindle runout?
Put the tip of an indicator [1] against the taper to measure runout. Manually turn the spindle. The total indicated runout (TIR) of the spindle at the taper must not exceed 0.0002" (0.005 mm).
Aug 8, 2023
How to correct spindle runout?
Clock the inside of the spindle taper to see the spindle's runout. Clock a precision dowel in the toolholder to see the toolholder's runout. Clock the taper inside an ER collet chuck with no collet installed to see the runout of just the toolholder rather than the toolholder + collet combination.
What is acceptable spindle runout on a lathe?
0005 or less run out rated acceptable by most manufacturers. If much more than that suspect a bent spindle too. So if wood lathe is reading anything . 0005 or less at the spindle also acceptable by manufacturers.
What are the two types of runout?
Run-out has two main forms:
Radial run-out is caused by the tool being translated off the machine axis, still parallel. Radial run-out will measure the same all along the machine axis.
Axial run-out is caused by the tool or component being at an angle to the axis.
Runout is the tendency to spin the tool around a center point that is not the tool's center. It makes the tool wobble instead of spinning cleanly and increases ...
Axial runout is the measurement of how much play there is perpendicular to the axis of rotation. This reading is represented by Total Indicated Runout (TIR), ...
Measuring spindle runout with a dial test indicator. One of the leading causes of bit breakage on CNC routers is excessive runout or eccentricity at the cutting ...
Duration: 12:32
Posted: Oct 20, 2016
Posted: Oct 20, 2016
Aug 8, 2023 · The total indicated runout (TIR) of the spindle at the taper must not exceed 0.0002" (0.005 mm). Put a precision test bar [2] into the spindle.
Dec 4, 2010 · Machine spindle run-out question? Why is spindle run-out in a lathe, surface grinder, or mill so important to be as minimal as possible?
Oct 26, 2022 · Two things, first being you should check runout at a much slower speed. Turn it by hand. Second is that less than 0.002 is a pretty good ...
Mar 29, 2017 · At best, it shows that there is a minimum of the measured runout. At worst, it could be indicative of a bigger problem like a bent spindle. All ...