The present application relates to a runout detection device, which includes a base plate, lateral plates, guide sleeves, springs and dial gauges, etc. During the operation, the sliding sleeve and the lateral dial gauge are moved along the sliding groove in the lateral formwork, so that the runout of right end of the work piece may be measured. The bottom plate of the lower end measuring device is placed above the base plate, the ball at the top end of the probe is always in contact with the lower end of the work piece under the action of the upper spring, the probe is pressed down when contacting a projection, and the L-shaped plate is rotated clockwise through the head nail, at this time, the runout of the lower end of the work piece may be known by the reading of the lower dial gauge.

There is provided a rotary stand capable of reducing the load on a feeder and deformation of a placement plane. A rotary stand includes a feeder that adjusts an inclination of a placement plane. The feeder includes a first contact portion that interlocks with a feeding mechanism to move and a second contact portion pressurized by a spring. The first contact portion and the second contact portion disposed to face each other in the movement direction to sandwich a held part interlocking with the placement plane.

A coordinate measuring machine for measuring coordinates or properties of a workpiece includes an extended stylus. The extended stylus includes an extension element and a connection element. The extension element includes a carrier portion mounted at the connection element so as to be rotatable about an axis of rotation. The extension element includes, on a side remote from the connection element, a shaft portion that is aligned so as to deviate from the axis of rotation. The coordinate measuring machine includes a measurement head to which the extended stylus is attached. The measurement head is configured to measure deflections of the stylus resulting from contacts of the extended stylus to the workpiece.

Provided are a displacement detector, a surface shape measuring apparatus, and a roundness measuring apparatus capable of measuring displacement in a plurality of directions, having a simple configuration, and capable of highly accurate measurement. A displacement measurer includes: a detector body; a substantially L-shaped stylus having a contactor to be in contact with a measuring surface of an object to be measured; a stylus holding part that is provided in the detector body and holds the stylus in a swingable manner, with a swing plane being a plane including a first direction and a second direction that are perpendicular to each other; and a displacement detecting unit that is provided in the detector body and detects displacement of the contactor associated with contact between the contactor and the measuring surface.

An example of a concentric probe includes an outer shroud having a bore that extends through the outer shroud, an inner shroud located within the outer shroud and having a bore that extends through the inner shroud, the inner shroud joined to the outer shroud via brazing, an annulus defined by a space between the inner shroud and a wall of the bore of the outer shroud, a plenum defined by a space between the inner shroud and the wall of the bore of the outer shroud, the plenum being in fluid communication with the annulus, and a transducer disposed within inner shroud.

A linear drive mechanism which moves a detector having sensitivity in a first axial direction, relatively to a workpiece in a second axial direction orthogonal to the first axial direction, the linear drive mechanism includes: a drive shaft extending in the second axial direction; a mover which is supported in a non-contact fashion by the drive shaft and configured to move along the drive shaft integrally with the detector or the workpiece; a guide provided at a position deviated relative to the drive shaft in a third axial direction orthogonal to both the first axial direction and the second axial direction, the guide parallel to the drive shaft; and a resistance force generator which is provided on one of the mover and the guide, and is in contact with the other of the mover and the guide, the resistance force generator generates a resistance force which resists against movement of the mover.

Improvements in a rotor runout and concentricity jig that mimics the runout and/or concentricity of an axle of a vehicle that can be transferred to a rotor. The jig uses discs with high and low points and/or two eccentric tubes. The parts can be adjusted from in-phase to out of phase to duplicate the characteristics of the axle. The adjustments have incremental detents that correspond with the imperfections of the axle to rotor. The position of the rotor is marked on the axle and the rotor to ensure that the rotor is placed onto the axle in the exact same location. The axle and the rotor are cleaned, reinstalled and measured for runout and concentricity. The rotor is then removed and inaccuracies for runout and/or concentricity are transferred to the jig for machining the rotor.

Improvements in a rotor runout and concentricity jig that mimics the runout and/or concentricity of an axle of a vehicle that can be transferred to a rotor. The jig uses discs with high and low points and/or two eccentric tubes. The parts can be adjusted from in-phase to out of phase to duplicate the characteristics of the axle. The adjustments have incremental detents that correspond with the imperfections of the axle to rotor. The position of the rotor is marked on the axle and the rotor to ensure that the rotor is placed onto the axle in the exact same location. The axle and the rotor are cleaned, reinstalled and measured for runout and concentricity. The rotor is then removed and inaccuracies for runout and/or concentricity are transferred to the jig for machining the rotor.

A measurement apparatus includes a horizontal plate. The horizontal plate includes a first plate end, a second plate end disposed away from the first plate end in a longitudinal direction, a first plate surface extending between the first plate end and the second plate end, and a second plate surface extending between the first plate end and the second plate end. The second plate surface is disposed away from the first plate surface in a normal direction. A first support member extends from the first plate end longitudinally toward the second plate end and protrudes in a direction normally away from the second plate surface. A second support member extends from the first plate end longitudinally toward the second plate end and protrudes in a direction normally away from the second plate surface. A measurement bar contacts the first support member and the second support member.

A measurement device can include a plurality of wheel support modules. Each of the wheel support modules can be configured to attach to a different type of vehicle wheel and to provide for rotation of the vehicle wheel about an axis. An arm can be removably attached to the first wheel support module. A measurement element that measures deformation of the vehicle wheel can be moveably attached to the arm. The different configuration of each of the wheel support modules allows for various types of vehicle wheels to be measured for deformation using the same measurement device.