Abstract:
A rotary table (10) includes a housing (16) including a cylindrical holding part (46) extending along a first axis (Ob) direction, a pallet stand (44) including a flange part (52), which is formed along an outer periphery thereof, and which rotates about the first axis (Ob) with respect to the holding part (46) together with a pallet (36), a roller bearing (42) which is arranged in the housing (16) and which rotatably supports the pallet stand (44), a motor (40) which drives the rotation of the pallet stand (44), and a support member (56) which is arranged on the rear side of the flange part (52) in the first axis (Ob) direction, which has a sliding surface (56A) at a front end thereof in the first axis (Ob) direction, and which is configured to be movable forward and rearward along the first axis (Ob) direction, wherein the sliding surface (56A) contacts the flange part (52) when advanced and separates from the flange part (52) when retracted.
Abstract:
One object of the present invention is to provide a wheel bearing apparatus which can perform both keep of the rigidity of the wheel bearing apparatus and reduction of the vibration transmitted to a cabin of a vehicle. According to the present invention, there is provided a wheel bearing apparatus comprising an outer member integrally formed on its outer circumference with a body mounting flange to be mounted on a knuckle forming part of a suspension apparatus and also integrally formed on its inner circumference with double row outer raceway surfaces; an inner member including a hub wheel and at least one inner ring, the hub wheel being integrally formed on its one end with a wheel mounting flange and having a cylindrical portion axially extending from the wheel mounting flange, the inner ring being press fitted onto the cylindrical portion of the hub wheel, the inner member being formed on its outer circumference with double row inner raceway surfaces opposing to the double row outer raceway surfaces; double row rolling elements contained between the double row inner raceway surfaces and the double row outer raceway surfaces respectively of the inner member and the outer member; and the outer member being adapted to be fastened to the knuckle through securing bolts characterized in that a vibration damping member is interposed between opposite surfaces of the body mounting flange of the outer member and of the knuckle.
Abstract:
A tapered roller bearing element (44) includes a first end and a second end, the second end having a second end radius. There is an apex ring (60) between the two ends having an apex ring radius. There is also a base cone (54) extending between the first end and the apex ring (60), the base cone (64) tapering outwardly at a base cone angle (C). In addition, a relief cone (56) extends between the apex ring (60) and the second end. The relief cone (56) tapers inwardly at a relief cone angle (R), the relief cone angle (R) is larger than the base cone angle (C).
Abstract:
In a reduction bearing (105, 107, 205, 207, 5, 6), the center ring (120, 121, 20, 21, 220, 221) are configured as bearing races (17, 21) for an inner of the at least two concentric rings (10) of or with rolling elements (40, 50, 51, 52, 60, 61) and the center ring (120, 121, 20, 21, 220, 221) and the outer ring (130, 171, 230, 30, 31) are configured as bearing races (17, 21) for an outer of the at least two concentric rings (10) of or with rolling elements (40, 50, 51, 52, 60, 61). The inner ring (10, 110, 111, 11, 12, 210, 211), the center ring (120, 121, 20, 21, 220, 221) and the outer ring (130, 171, 230, 30, 31) have, respectively, an inner ring extension (10, 16, 17), a center ring extension (26, 28) and an outer ring extension (36, 38) extending in an axial direction of the reduction bearing (105, 107, 205, 207, 5, 6) and lying in a common reduction stage plane (42).
Abstract:
A turbofan engine (20) comprises a fan (28). A fan drive gear system (60) is configured to drive the fan. A low spool comprises a low pressure turbine (50) and a low shaft (56) coupling the low pressure turbine to the fan drive gear system. An intermediate spool comprises an intermediate pressure turbine (48), a compressor (42), and an intermediate spool shaft (54) coupling the intermediate pressure turbine to the intermediate spool compressor. A combustor (45) is between a core spool compressor (44) and a high pressure turbine (46). A first (160) main bearing engages a static support (164; 164′) and a forward hub (236) of the intermediate spool. A second (162) main bearing engages the low shaft and the forward hub.
Abstract:
The invention concerns a method for manufacturing a steel component (6, 11) comprising a first steel part (7) and a second steel part (8), the first (7) and second (8) steel part having a carbon content up to 1.5 weight percent, The method is comprising: Heating (1), at least partly, the first steel part (7), and at least partly, the second steel part (8), to above the alpha/gamma transformation temperature, and joining (2) the first steel part (7) and the second steel part (8) by welding, the welding taking place at a temperature above the alpha/gamma transformation temperature, and cooling (3) such that hardening effects are avoided. The invention further concerns weld seams (9), welded steel components (6, 11), and bearing components (11, 15, 20, 22, 26, 27, 31).
Abstract:
A method can include providing a turbocharger housing that includes a bore; providing a spacer; providing a shaft and wheel assembly with a first rolling element bearing assembly seated on a first portion of a shaft of the shaft and wheel assembly; providing a second rolling element bearing assembly; interference-fitting the spacer into the bore; inserting a free end of the shaft into the bore and through the spacer; and inserting the second rolling element bearing assembly into the bore and seating the second rolling element bearing assembly on a second portion of the shaft such that the spacer is disposed intermediate the first portion of the shaft and the second portion of the shaft. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.