A follower mechanism including an outer cup having a substantially cylindrical side wall, an annular lip portion disposed at a first end of the side wall, and an annular ledge disposed on the side wall, the annular ledge being disposed in a plane that is transverse to a longitudinal center axis of the follower mechanism. An inner cup includes an annular lip extending outwardly therefrom and a pair of shaft apertures, and is disposed in the outer cup so that the lip abuts the annular ledge of the outer cup and is non-rotatably fixed thereto by the annular lip of the outer cup which abuts the lip of the inner cup. A shaft is received in the shaft apertures, and a roller follower is rotatably received on the shaft such that a portion of the roller follower extends axially outwardly beyond the annular lip portion of the outer cup.

The rotary table device includes a base, a motor, a rotary drive shaft and a cross-roller bearing. An outer ring is rotationally driven through engagement of a pinion gear formed at a shaft end of the rotary rive shaft with a rack gear formed on the outer ring and transmission of a rotary drive force from the rotary drive shaft to the outer ring. The outer ring is formed in a hollow cylindrical shape covering a side of an inner ring, includes a table capable of mounting an external member on one side of the hollow cylindrical shape, and is integrated with the rack gear formed over an entire circumference of the other side thereof. With such a configuration, a rotary table device that can realize reduction in height, size and weight can be provided.

A radial support bearing having a cylindrical cage including a central portion, a first end portion and a second end portion, the central portion defining a plurality of roller pockets, and at least one projection extending radially inwardly from an inner surface of the cage, a plurality of rollers, each roller being disposed in a respective roller pocket, a cylindrical outer sleeve disposed about an outer surface of the cage so that the inner surface of the outer sleeve is adjacent the plurality of rollers, and an o-ring adapted to be axially fixed relative to the shaft. The o-ring is slidably received between the at least one projection of the cage and the central portion of the cage so that the cage is axially fixed with respect to the shaft.

Provided is a tripod type constant velocity universal joint (1), including: an outer joint member (2) having track grooves (6) formed at trisected positions in a circumferential direction to extend in an axial direction; a tripod member (3) including leg shafts (9) radially projecting from trisected positions in the circumferential direction; and rollers (4) fitted in a freely rotatable manner about the leg shafts (9), respectively, and received in the track grooves (6), respectively, in which a radially outer surface (4a) of each of the rollers (4) is formed of a surface unsubjected to grinding or cutting work after heat treatment.

A universal joint includes a bearing including a bearing cup fitted in a bearing hole of a yoke and rolling elements arranged between the bearing cup and a shaft portion of a cross shaft. A method for manufacturing the universal joint includes: simulating a shrunken state in which a sample bearing cup selected from bearing cups in a same lot is fitted in the bearing hole such that only an outside diameter is restrained, by press-fitting the sample bearing cup into a reference hole of a reference jig; measuring a diameter of an inscribed circle inscribed to the rolling elements in the shrunken state; setting an outside diameter of the shaft portion to a required outside diameter according to the diameter of the inscribed circle; and inserting the bearing cup with the rolling elements between the shaft portion having the required outside diameter and the bearing hole.

A follower mechanism including an outer cup having a substantially cylindrical side wall, an annular lip portion disposed at a first end of the side wall, and an annular ledge disposed on the side wall, the annular ledge being disposed in a plane that is transverse to a longitudinal center axis of the follower mechanism. An inner cup includes an annular lip extending outwardly therefrom and a pair of shaft apertures, and is disposed in the outer cup so that the lip abuts the annular ledge of the outer cup and is non-rotatably fixed thereto by the annular lip of the outer cup which abuts the lip of the inner cup. A shaft is received in the shaft apertures, and a roller follower is rotatably received on the shaft such that a portion of the roller follower extends axially outwardly beyond the annular lip portion of the outer cup.

A connecting rod module (1) includes: a connecting rod (10), which is formed of a sintered metal; and bearing raceway rings (outer rings (21, 31)), which are press-fitted into a through-hole (11a, 12a), respectively. The connecting rod (10) has a Young's modulus of from 120 GPa or more to 180 GPa or less. The outer rings (21, 31) each have a Young's modulus of from more than 180 GPa to 240 Gpa or less. When T represents a radial thickness of each of the outer rings (21, 31), D represents an inner diameter dimension of each of the through-holes (11a, 12a), and I represents an interference between the outer ring (21) and a peripheral wall of the through-hole (11a) or between the outer ring (31) and a peripheral wall of the through-hole (12a), the following equations are established:

T=(0.050.15)D; and

I=(0.00040.004)D.

A segmental bearing device includes a plurality of rolling elements, a segmental cage for receiving the plurality of rolling elements, and a partial shell. The segmental cage has a first end region and a first interference region disposed in the first end region. The partial shell has a bearing race for the plurality of rolling elements, and first and second axial guide flanges for axially guiding the segmental cage. The first interference region lies against the first axial guide flange, axially clamping the segmental cage. The segmental cage may also include a second end region, axially opposite the first end region, and a second interference region disposed in the second end region. The second interference region lies against the second axial guide flange, axially clamping the segmental cage.

A roller bearing configured to be mounted on a balancing shaft. The rolling bearing having an outer ring, a cage axially protruding beyond at least one side of the outer ring, and rollers mounted in the cage and in rolling contact with the outer ring. The cage provides at least one boss on a side that axially protrudes beyond the outer ring, the boss being dedicated to come into abutment against the outer ring in case of relative axial displacement between the cage and outer ring.

A cage of a cage and rollers includes engaging projecting portions that are provided on outer circumferential surfaces of rim portions, the engaging projecting portions being configured to be elastically deformed when the cage is inserted into a support hole of a rocker arm to thereby allow the cage to be contracted in diameter and to be elastically restored to be brought into engagement with the rocker arm after the cage is inserted in the support hole, to thereby position the cage properly in relation to an axial direction relative to the rocker arm. The cage and rollers can be assembled to the rocker arm while being positioned properly in relation to the axial direction so that the cage and rollers and the rocker arm can be formed into a rocker arm unit, and the cage and rollers can easily be assembled to the rocker arm.