Kugelfischer Georg Schafer & Co.

Fag Kugelfischer Georg Schafer

Gunter Markfelder

Heinrich Hofmann

Manfred Troster

Wolfgang Teich

Gunter Scharting

Johannes Brandlein

The disclosure concerns a two-row angular-contact ball bearing with axially spaced apart inner races defined on a shaft and outer rings with outer races disposed around the inner races. The outer rings are held apart by a bushing, and a spring inside the bushing presses one outer ring away from the other. At each outer ring is a respective cage for the bearing balls and the cage has a T-shaped cross section with the leg of the T being the prongs between adjacent balls and the cross bar of the T resting on one radial side on a collar defined on the shaft and at the other radial side which is radially outwardly of the collar, on the end of the respective outer ring, and with the cage resting there, the balls are in the inner race. The cage includes elements surrounding the balls and defining pockets and at least some of the sections of the pockets are resilient to expand as the balls are moved over the shaft toward the race and to return to shape after the balls have entered the inner race.

Cage for two-row angular-contact ball bearing

A two-row angular contact ball bearing with two axially spaced inner races arranged in the shaft and outer rings with outer races disposed around the inner races. The outer rings are held apart by a bushing. One end of the bushing rests against one of the outer rings. The other end of the bushing has a radially enlarged end section which extends over the other outer ring and defines a free space between the other outer ring and a shoulder at the beginning of the enlarged section of the bushing. An annular, conical spring is in the free space between the outer ring and the shoulder. A cutout in the bushing enables installation of hardening material in the free space radially outside the annular spring for rigidifying the spacing of the bearings once the shaft carrying the bearings has been installed in a final installation.

Axial shift arrangement for two-row angular-contact bearing

A journal bearing for two relatively rotatable members is formed from two coaxial rings, one of them being axially divided into two mutually symmetrical halves with respective annular track surfaces each bounded only by an external shoulder while the other ring has two annular track surfaces separated by a pair of internal shoulders. Two sets of rotary bodies (balls or rollers) are confined by these shoulders between respective inner and outer track surfaces and are held spaced apart by a common annular cage with annular lips or groups of teeth snap-fitted into a pair of closely juxtaposed annular grooves near the shoulderless internal edges of the two ring halves whereby the entire assembly is held together when detached from the relatively rotatable members.

Journal bearing with one axially divided inner or outer ring

A ball or roller bearing with two symmetrical halves, each designed to absorb both radial and axial stresses, comprises an axially split inner ring on a shaft and an axially split outer ring carried by a housing member coaxially surrounding the shaft. The inner ring halves form seats for respective rows of balls or rollers engaging contact zones on the inner peripheral surfaces of the outer ring halves that are offset from these seats in either an axially inward or an axially outward direction. In the first instance, the housing member has an annular disk received in an annular recess or groove of the same axial width which is formed by two confronting peripheral rabbets on the outer ring halves; in the second instance the inner ring halves are rabbeted to form an annular recess or groove receiving an axially coextensive peripheral rib on the shaft. In either case, the two rabbeted ring halves are axially separated by a small gap.

Journal bearing with axially split bearing rings

A cage for the rollers of a journal bearing, held between two shoulderless track surfaces at least one of which is formed by a ring, has an annular flange resiliently engaging in a peripheral V-groove of the ring which is axially offset from the roller-holding cage pockets. The flange has an end face formed with an annular incision designed to make it radially compressible, that incision lying at or just beyond one of the radial limits of the gap formed between the two track surfaces. The axially outer boundary of the V-groove is recessed with reference to the associated track surface.

Shoulderless roller bearing

An annular array of rotary bodies (balls or rollers) separates two coaxial track surfaces of a pair of bearing rings from each other, one of these track surfaces forming an annular lodgment for these bodies while the other track surface is unobstructed on at least one side of the array to facilitate the initial assembly of the bearing rings and the bodies into a unit. At least one retaining element embraces one of the rotary bodies and has a flange resiliently snap-fitted into an annular V-groove of the unobstructed track surface, the flange having an undercut enhancing its radial compressibility to facilitate such engagement; this holds the unit together during transportation and handling.

Cageless ball or roller bearing

A ball or roller bearing with two symmetrical halves, each designed to absorb both radial and axial stresses, comprises two axially abutting inner rings on a shaft and two axially abutting outer rings in a housing wall coaxially surrounding the shaft. The inner rings form seats for respective rows of balls or rollers engaging contact zones on the inner peripheral surfaces of the outer rings that are offset from these seats in either an axially inward or an axially outward direction. In the first instance, the housing wall has an annular groove aligned with an annular recess or groove of the same axial width which is formed by two peripheral rabbets on the outer rings; in the second instance the inner rings are rabbeted to form an annular recess or groove aligned with an axially coextensive peripheral groove on the shaft. In either case, the two aligned grooves form an annular channel of rectangular cross-section occupied by a destructible retaining ring of plastic material whose axial width is equal to or slightly less than that of the channel and which can be molded in situ.

A friction bearing having spaced-apart inner and outer bearing rings with a plurality of separate sliding members interposed therebetween, the individual sliding members being restrained by respective generally annular members positioned adjacent and on substantially encompassing the sliding members, and fixedly attached to one of the bearing rings.

Friction bearing with sliding members

A journal bearing comprises one or two sets of rotary bodies, i.e. rollers and/or balls, guided in a cage structure of resilient resinous material with two axially spaced annular flanges snap-fitted into respective grooves of triangular cross-section which are formed in an outer and/or an inner race. The cage structure may comprise a single annular cage with apertures receiving the rotary bodies, a pair of such cages, or two axially spaced crenelated rings. Upon engagement of the two flanges in their grooves, the cage structure, race or races and rotary bodies form a unitary assembly.

Growing community of inventors

Schweinfurt, Germany

Gunter Markfelder