Runout Test Arbors for Milling Spindles

Spindle runout arbors offer a quick and easy way to verify that a machine spindle is running true after a crash, after a machine has been moved, or periodically as a performance check. Arbors are available for all major machine tapers, including CAT/DIN/BT Steep Taper, HSK, Capto, Morse, and others.

Arbors for lathe/turning spindles are also available.

HSK Taper

HSK Taper

Available for HSK-A/C/E 32, 40, 50, 65, 80, 100, 125, 160 and HSK-F 40, 50, 63, 80, 100, 125, 160

Steep Taper

Steep Taper

Maximum runout error 0.003mm / 3 micron / 0.0001 inch.

SK-DC Dual Contact

SK-DC Dual Contact

Big Plus compatible steep taper spindle runout test bars/ arbors.

PSK

PSK

Available for Polygonal-Shank Taper (Coromant Capto) sizes C3, C4, C5, C6, C8, and C10

KM Taper

KM Taper

Available for KM40, KM50, KM63, and KM100. Contact us for custom arbors.

Morse Taper

Morse Taper

Morse spindle runout test arbors

Carrying Cases

Whether your gauges need to be transported on a frequent basis, or need to be stored in one area for a period of time, we can offer a reliable solution. These carrying cases are also available for ball-end runout arbors and other gauges. Ask us how we can customize your case.

R8

R8

Standard R8 spindle runout test arbor with inch retention thread. Runout <=0.003 micron (0.0001 inch)

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