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A proximity probe device for detecting rotating shaft deviation, wherein a rigid body has a pair of flat magnets for forcibly seating against a substantially flat surface area of a shaft bearing housing of magnetizable material, a threaded bore through the body for holding a proximity probe having a

A proximity probe device for detecting rotating shaft deviation, wherein a rigid body has a pair of flat magnets for forcibly seating against a substantially flat surface area of a shaft bearing housing of magnetizable material, a threaded bore through the body for holding a proximity probe having a mating threaded casing, an angle indicator for assisting in placing the body on the surface area and a pair of spaced shoulders on a proximate edge surface of the body, wherein a sight plane for each of the shoulders is substantially tangential to the surface of a shaft in the shaft bearing housing to aid in aiming the probe at a desired location on the shaft surface.

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1. A device for mounting a proximity probe in operating position on a machine having a rotatable shaft and wherein the probe is used for detecting rotating shaft deviation, said device comprising a rigid body having a flat magnetic rear face portion adapted to magnetically, forcibly seat against a s

1. A device for mounting a proximity probe in operating position on a machine having a rotatable shaft and wherein the probe is used for detecting rotating shaft deviation, said device comprising a rigid body having a flat magnetic rear face portion adapted to magnetically, forcibly seat against a substantially flat surface area of a shaft bearing housing of magnetizable material, structural means on said body for holding the proximity probe, an adjustment mechanism on said structural means for spacing said probe at a desired distance from a shaft surface, and positioning means on said device for aiming the probe at a desired location on the shaft surface. 2. The device of claim 1 wherein said positioning means comprises an angle indicator for assisting in placing said body on said surface area whereby a probe axis can be aimed at a selected location on the shaft surface, which location is at a prescribed and selected angular position around the shaft. 3. The device of claim 2 wherein said positioning means further comprises a pair of spaced shoulders on a proximate edge surface of said body, and wherein a sight plane of each of said shoulders is substantially tangential to the surface of the shaft. 4. The device of claim 3 wherein said angle indicator comprises a protractor instrument rotatably mounted on a front face portion of said body, wherein a bubble level is affixed to said face portion with a level axis normal to the probe axis when the probe axis runs vertically thru a vertical diameter of the shaft. 5. The device of claim 4 wherein a distal edge portion of said body is provided at each side of said probe axis with a flat surface portion lying in a plane at a 45° angle to said probe axis. 6. The device of claim 5 wherein said magnetic rear face portion comprises a pair of spaced permanent magnets and wherein screw jacking means is threadedly mounted thru said body from said front face portion to said rear face portion of said device at a location adjacent to each magnet for forcibly engaging said bearing housing and moving said magnets and said body away from said bearing housing as needed for removal of the device from the machine or for allowing sliding positioning adjustment of the device on said machine. 7. The device of claim 4 wherein said structural means comprises an extension bar removably affixed to said body and having a portion extending outwardly and axially from said front face portion, wherein from 1-10 threaded bores are formed through said bar for selecting threadedly receiving a threaded portion of said probe. 8. The device of claim 7 wherein said portion of said extension bar is formed having an end with a right angle turned down section (64) which can hold a probe with its axis aligned with the shaft axis or with any other point on the shaft diameter. 9. The device of claim 4 wherein said instrument has a zero angle marking aligned with the probe axis and further has graduated 0° to 90° angle markings in a semi-circular pattern on either side of said zero angle marking. 10. The combination of (1) a shaft rotatably mounted in a bearing housing of magnetizable material wherein a front face portion of said housing has a substantially flat surface area surrounding said shaft, and (2) a proximity probe device for detecting rotating shaft deviation, wherein said device has a rigid body having a flat magnetic rear face portion magnetically, forcibly seating against said substantially flat surface area of said bearing housing, structural means on said body holding a proximity probe, an adjustment mechanism on said structural means for spacing said probe at a desired distance from a shaft surface, and angular positioning means on said device aiming the probe at a desired location on the shaft surface. 11. The device of claim 10 having an angle indicator for assisting in placing said body on said surface area whereby a probe axis can be aimed at a selected location on the shaft surface, which location is at a prescribed and selected angular position around the shaft. 12. The device of claim 11 wherein said positioning means additionally comprises a pair of spaced shoulders on a proximate edge surface of said body, and wherein a sight plane of said shoulders is substantially tangential to the surface of the shaft. 13. The device of claim 12 wherein said angle indicator comprises a protractor instrument rotatably mounted on a front face portion of said body, wherein a bubble level is affixed to said face portion of said body with the level axis normal to the probe axis when the probe axis runs vertically through a vertical diameter of the shaft. 14. The device of claim 13 wherein a distal edge portion of said body is provided at each side of said probe axis with a flat surface portion lying in a plane at a 45° angle to said probe axis. 15. The device of claim 14 wherein said magnetic face portion comprises a pair of spaced permanent magnets and wherein screw jacking means is threadedly mounted thru said body from said front face portion to said rear face portion at a location adjacent to each magnet for forcibly engaging said bearing housing and moving said magnets and said body away from said bearing housing. 16. The device of claim 13 wherein said structural means comprises an extension bar removably affixed to said body and extending outwardly from said front face portion, wherein from 1-10 threaded bores are formed through said bar for selectively, threadedly receiving a threaded portion of said probe. 17. The device of claim 13 wherein said instrument has a zero angle marking aligned with the probe axis and a graduated 0° to 90° angle marking in a semi-circular pattern on either side of said zero angle marking.