Abstract: A device for centering tools, such as saw blades, rotary cutters and the like which are circular and which have bores of different sizes, on processing machines such that they can be positioned about their center axes. The device includes a mount adapted to be attached to such a machine, and a slide coupled to the mount and adapted to move relative to the mount. A first bearing is coupled to the mount, and a second and third bearing are coupled to the slide and mounted for movement on the slide selectively toward or away from the first bearing. The first, second and third bearings are configured to engage the bore of the blade such that the bore is centered on the machine and the blade is rotatable about its center axis.

Abstract: A device for centering tools, such as saw blades, rotary cutters and the like which are circular and which have bores of different sizes, on processing machines such that they can be positioned about their center axes. The device includes a mount adapted to be attached to such a machine, and a slide coupled to the mount and adapted to move relative to the mount. A first bearing is coupled to the mount, and a second and third bearing are coupled to the slide and mounted for movement on the slide selectively toward or away from the first bearing. The first, second and third bearings are configured to engage the bore of the blade such that the bore is centered on the machine and the blade is rotatable about its center axis.

Abstract: A device for centering tools, such as saw blades, rotary cutters and the like which are circular and which have bores of different sizes, on processing machines such that they can be positioned about their center axes. The device includes a mounting plate adapted to be attached to such a machine, a first and second bearings on the plate, and a third bearing mounted for movement on the plate selectively toward or away from the first and second bearings. The first, second and third bearings being engagable with the bore of the blade such that the bore is centered on the machine and the blade is rotatable about its center axis.

Abstract: A collar is disclosed for mounting a radially separable cutting tool in installed concentrically on an arbor. The cutting tool is comprised of individual sectors that are radially separable, have inner edges that coact to define a center arbor receiving bore and apertures radially spaced from the inner edges for loosely receiving pins therein. The collar includes an annular flange having axially outer and inner faces and a bore for receiving the arbor therethrough. A plurality of pins are mounted in the collar flange and dimensional to loosely fit in the apertures in the cutter tool sectors. The pins project axially beyond the inner face and are movable radially toward and away from the bore for contact with the sectors mounted thereon to enable the pins to precisely move each sector into installed concentricity with the bore. A clamping mechanism is provided to clamp the cutter tool sectors against the inner face to maintain the sectors in installed concentricity.