Arbor identification system

BT30 K - M08 - 45

Arbor sizeDouble-faceThread sizeLength from
clamping spindlefor clampinggauge line

How to attach head

1. When clamping the head on the arbor, make sure there is no dust or chips inside (Fig. 1). Do NOT put lubricant on the clamping portion.

2. Attach the head on the arbor and fix it using the wrench (Fig. 2). Ref. to the Table 1 for Recommended tightening torque. Note: The wrench is NOT included in the products. Table 1 recommended head tightening torque

Ensure there are NO chips between the arbor and head Fig. 1

Thread size for clampingWrench double width [mm]Recommended tightening torque [N∙m]
M81223
M101546
M121980
M162490

for the wrench size tightening torque

3. Confirm that the head is fixed firmly on the arbor. (Fig. 3) No clearance in between

Frequently asked question Fig. 3 Q: Can the double-face clamping arbor be mounted on a general BT spindle? A: Yes. It can be used as a general BT arbor with a general BT spindle.

No clearance Clearance It can be used as a general BT arbor, though the advantage of the double-face clamping will not be shown.

Double-face clamping arbor mounted Double-face clamping arbor on double-face clamping spindle mounted on general spindle