A gearbox is coupled to a power end housing of a reciprocating pump, where the gearbox includes at least one support member having a first end securely affixed to the gearbox, and the at least one support member having a second end securely affixed to an immobile part of the reciprocating pump for supporting the gearbox and resisting movement of the gearbox relative to the reciprocating pump.

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 bearing includes an annular cup having an outer race and a radially extending flap. The flap defines an inner circumferential surface and a notch extending outwardly from the inner circumferential surface. The notch includes opposing radially extending sides, an outer circumferential wall, and a locking lip raised from the outer wall. Rolling elements are seated on the outer race and arranged to ride on a shaft. A sealing disc has an outer circumferential surface disposed against the inner circumferential surface and a tab received in the notch with the locking lip extending radially over the tab to secure the scaling disc to the cup.

A propulsion system for a motor vehicle includes a casing having first and second housing portions cooperating with one another to define a cavity. The propulsion system further includes an electric motor disposed within the cavity. A support mechanism is attached to at least one of the first and second housing portions. The support mechanism includes a first side that faces the first housing portion and a second side that faces the second housing portion and is disposed within the cavity. Bearing seats are formed in the first housing portion, the second housing portion, and the second side of the support mechanism. Bearings are engaged with an associated one of the bearing seats and are configured to rotatably support the input member, the layshaft, and the output member in a fixed-free bearing arrangement. The first side of the support mechanism is free of the bearing seats and the bearings.

A universal joint bearing having a cup that serves as an outer ring of the universal joint bearing. The universal joint bearing includes exactly one sealing ring that is provided for sealing a gap between the cup and a trunnion.

An axial needle bearing includes a sheave and a cage. The sheave includes a radially outer sheave section having a rolling body race, a connecting angled thrust rib, and a ring section which is connected to the thrust rib and axially offset with respect to the sheave section. The disc-like cage retains bearing needles in pockets rolling on the rolling body race. The cage is fixed in position axially by a plurality of retaining sections extending radially from the ring section over the thrust rib and engaging over the cage, beneath each of which retaining sections a recess is provided in the sheave. The recesses beneath the retaining sections have a U-contour as they are worked into the sheave and are designed to extend with the web of the U-contour into the sheave section and with the ends of the U-contour into the ring section.

A gear train includes a housing, a gear, a shaft, a needle bearing, and a stop shim. The housing includes an end face traversing an axis and a cylindrical surface centered to the axis. The face and the surface define a bore. The gear is disposed in the housing, and is adapted to rotate about the axis. The shaft is engaged to, and projects axially from, the gear. The shaft includes an end portion disposed in the bore. The needle bearing is seated in the bore, and is disposed radially between the surface and the end portion. The stop shim is disposed axially between the end face and the end portion for limiting axial displacement of the gear shaft. The stop shim is made of a material that is harder than a material of the housing.

A constant velocity joint includes a trunnion extending radially outwardly about a trunnion axis. The joint also includes a ball surrounding the trunnion and rotatable relative thereto about a plurality of needle rollers. The joint further includes a retainer that is a single, unitary structure coupled to the trunnion and positioned to limit movement of the ball and the needle rollers in a direction parallel to the trunnion axis.

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 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.