US800788A - Antifriction-bearing. - Google Patents

Description

No; 800,788. PATENTED OCT. 3, 1905. T. A. BLAKELY.

ANTIPRIOTION BEARING.

APPLICATION TILED NOV. 16, 1904.

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A UNITED STATES PATENT @FFICE.

THOMAS A. BLAKELY, OF FLESHERTON, CANADA, ASSIGNOR OF ONE- HALF TO FREDERICK W. HARRISON, OF OWVEN SOUND, CANADA.

ANTIFRICTION-BEARINGL Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed November 16, 1904. Serial No. 232,948.

To (all 1071mm it may concern.-

Be it known that I, THOMAS ALBERT BLAKELY, of Flesherton, in the county of Grey and Province of Ontario, Canada, have inven ted certain new and useful Improvements in Antifriction-Bearings; and I hereby declare that the following is a full, clear, and exact description of the same.

This invention relates to that class of antifriction-bearings in which the bearing-rollers for each journal are held together in an annular set by retaining-rings revoluble collectively around the journal and independently between the retaining-rings; and the objects of the invention are First. To hold the component parts of the antifriction-bearing together in such a manner that there will be no direct contact of the bearing-rollers with the retaining-rings when the antifriction-bearing is in a proper state of repair and to maintain the correct alinement of the component parts of the antifrictionbearing, so that there will be no contact of the bearing-rollers with each other either while stationary or rotating, so that under all conditions of load the frictional contact of the bearing-rollers upon the bearing parts of the journal and journal-box may be minimized, thus providing for the free revolution of the bearing-rollers independently between the retaining-rings. In carrying out this object the ends of the bearing-rollers are beveled and case-hardened to form the bearing parts for the bearing-balls, which are interposed between each adjacent pair of beveled ends to not only constitute their spacing means but also to equalize the load upon them by forming a rolling contact with their beveled ends, so that the excess of load upon any one bearing-roller may be evenly distributed to the remaining bearing-rollers, the bearingballs being retained in ball-retaining apertures or recesses formed through or in the inner faces of the retaining-rings.

Second. To evenly and correctly space the retaining-rings by forming centrally through the bearing-rollers longitudinal bores for the tie-rods, the ends of which pass through corresponding apertures in the retaining-rings and, being of a lesser diameter than the body portions, form abuttingshoulders for the inner faces of the retaining-rings to engage them when the parts are assembled, the bores through the bearing-rollers being of greater diameter than the body portions of the tierods, so that there will be no contact of the bearing-rollers therewith.

Third. To maintain the bearing-rollers within the ball-apertures by washers placed against the outer side faces of the retaining-rings and forming in the arresting-rings annular ballraces opposed to those parts of the bearingballs projecting through the retaining-rings.

These objects are attained by the construction hereinafter set forth, and illustrated in the accompanying drawings, in which- Figure 1 is a transverse sectional view of the bearing, taken between the washer and retaining-ring. Fig. 2 is a longitudinal section through the bearing. Fig. 3 is a perspective View of one of the washers looking at its inner face. Fig. 4: is a longitudinal section similar to Fig. 2, taken through the bearing-balls.

Like letters of reference refer to like parts throughout the specification and drawings.

The bearing-rollers a, having beveled ends a, are placed between the inner faces of two annular retaining-rings b,with sufiicient clearance between the rollers and retaining-rings to prevent them contacting each other. Formed centrally through the bearing-rollers a are longitudinal bores e, and passing through the bores c are the tie-rods d for holding the retaining-rings together, the ends 6 of the tierods being of a lesser diameter than the body portions to form abutting shoulders f to engage and properly position the retaining-rings relatively to each other and maintain them evenly spaced. In the retaining-rings b, intermediate the centers of the bearing-rollers a, are ball-apertures g, and contained in the ball-apertures g are bearing-balls h to contact the beveled ends of the bearing-rollers, to evenly space them, and constitute the bearings upon which they independently revolve between the retaining-rings, the ends of the bearing-rollers and the bearing-balls being case-hardened to minimize the friction of their contacting parts. The ball-apertures 9 may be of a lesser diameter than the bearingballs 72/, so that the bearing-balls cannot be moved entirely through them under ordinary conditions, and located upon the outer faces of the retaining-rings b are washers 2', having annular ball-races j to receive the projecting parts of the bearing-balls h. The washersz' are revolubly opposed to the outer faces of the retaining-rings b and are prevented from lateral displacement upon the journal m by lock nuts or collars Zi, fixed upon the axle Z at the ends of the journal m. The journal m constitutes the inner bearing part for the bearing-rollers a, and the journal-box is provided with a bearing part concentric with the journal on.

During the rotation of the axle within a stationary journal-box or the rotation of the journal-box around a stationary axle the set of bearing-rollers, with the retaining-rings, revolve collectively, and during such collective revolution each bearing-roller revolves independently upon the bearing-balls between the retaining-rings, the bearing-balls not only forming a minimum bearing-surface for the beveled ends of the rollers, but also maintaining the bearing-rollers properly spaced and in correct alinement, the washers, with the annular ball-races, maintaining the bearingballs in the ball-apertures and receiving part of the load upon the bearing-rollers.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

An antifriction-bearing comprising an annularly-arranged set of antifriction-rollers having longitudinally-disposed bores and beveled ends, two annular retaining-rings at the ends of and free from contact with the antifriction-rollers having bolt-apertures alining with the longitudinal bores and ball-apertures between the bolt-apertures, tie-rods of a lesser diameter than and passing through the bores of the bearing-rollers and bolt-apertures and having abutting shoulders to engage the inner faces of the retaining-rings, antifrictionballs contained in the ball-apertures of the retaining-rings to contact the beveled ends of the antifriction-rollers and form a rolling contact therewith, and Washers having annular ball-races to receive those parts of the balls projecting beyond the retaining-rings to position the balls against the beveled ends of the antifriction-rollers' Flesherton, November 11, 1904.

THOMAS A. BLAKELY.

In presence of WM. H. BRENT, W. L. WRIGHT.

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