Abstract: A bearing arrangement includes a bearing outer element that defines a first plurality of races opening radially inwardly, a bearing inner element that defines a second plurality of races opening radially outwardly, and a bearing middle element defining a third plurality of races at its radially outer surface thereof and a fourth plurality of races at its radially inner surface thereof. Rolling elements are receivable in the races. The bearing middle element includes an axial protrusion at least at one end thereof that can be received in a housing with respect to which the bearing outer and inner elements are rotatable.

Abstract: A bearing arrangement includes a bearing outer element that defines a first plurality of races opening radially inwardly, a bearing inner element that defines a second plurality of races opening radially outwardly, and a bearing middle element defining a third plurality of races at its radially outer surface thereof and a fourth plurality of races at its radially inner surface thereof. Rolling elements are receivable in the races. The bearing middle element includes an axial protrusion at least at one end thereof that can be received in a housing with respect to which the bearing outer and inner elements are rotatable.

Abstract: A bearing tracking system and method are provided, in which a bearing tracking application program is executed on a computer system to process information requests from a variety of system users received over communications links such as the Internet, and to present the users with an interface, such as an Internet browser page, containing output from processing bearing-related information stored in a database preferably hosted and maintained by the bearing supplier. The users may include different categories of entities, each with their own rights and responsibilities, such as customers or end users, third-party maintenance and refurbishing service providers, and organizations of the bearing supplier, such as engineering and marketing organizations.

Abstract: A device and method for monitoring machine components, such as bearings, in which micro-electronic monitoring devices are provided in contact with or within the component to be monitored to acquire and transmit performance data, preferably wirelessly, to a receiving device. The acquired information, which may be accompanied by unique monitoring device identification information, may be further processed and presented to an operator in human-interpretable form. The monitoring data acquisition may be conducted over dedicated communications circuits, or may be conducted, for example, by bringing a suitable receiving device, such as a receiver-equipped PDA, within data transmission range of the monitoring devices.

Abstract: A bearing unit includes first and second rings, a cage seated between the first and second rings, a first sensor for sensing the speed of the first ring, a second sensor for sensing the speed of the cage, and a device that is programmed to determine an axial force on the rings from the speed of the first ring and the speed of the cage. A method for determining an axial force of a bearing unit includes sensing the speed of the first ring of the bearing unit, sensing the speed of the cage of the bearing unit, and determining an axial force on the bearing rings from the speed of the first ring and the speed of the cage.

Abstract: A hydraulic nut having a piston which is movable in a fluid chamber of a nut body and which has a radial protrusion from the piston and a displacement bar mounted on the protrusion. The displacement bar overlies the nut body and extends past the nut body by an amount equal to the distance through which the hydraulic nut is to move a bearing assembly along a tapered shaft or move an adapter sleeve, or removal sleeve with bearing assembly on them.

Abstract: The serrated portions of the studs are fitted in those portions of the mounting holes 14 close to the other side face of the mounting flange 13b. Accordingly, the radially outer portion of the mounting flange 13b is deformed to the one side face. At the radially outer portion of the one side face and throughout the circumference, there is formed a taper face 28a, which is inclined the closer to the other side face as it goes the closer to the radially outer side. As a result, the aforementioned problem can be solved because the radially outer potion of the one side face does not protrude from a flat face 29 formed at the radially inner portion of the one side face even with that deformation. Moreover, the taper face 28a can be formed at a low cost by a lathe-turning.

Abstract: The serrated portions of the studs are fitted in those portions of the mounting holes 14 close to the other side face of the mounting flange 13b. Accordingly, the radially outer portion of the mounting flange 13b is deformed to the one side face. At the radially outer portion of the one side face and throughout the circumference, there is formed a taper face 28a, which is inclined the closer to the other side face as it goes the closer to the radially outer side. As a result, the aforementioned problem can be solved because the radially outer potion of the one side face does not protrude from a flat face 29 formed at the radially inner portion of the one side face even with that deformation. Moreover, the taper face 28a can be formed at a low cost by a lathe-turning.

Abstract: A hydraulic nut having a piston which is movable in a fluid chamber of a nut body and which has a radial protrusion from the piston and a displacement bar mounted on the protrusion. The displacement bar overlies the nut body and extends past the nut body by an amount equal to the distance through which the hydraulic nut is to move a bearing assembly along a tapered shaft or move an adapter sleeve, or removal sleeve with bearing assembly on them.

Abstract: A bearing for use in a water pump or similar apparatus and a method of assembling the bearing. The bearing has a stepped shaft and a counterbored raceway at the fan or pulley end which allows for use of a larger number of balls in the raceway at the fan or pulley end, and which allows for using larger balls at the impeller end. The method of assembly of the bearing includes assembling balls and a cage to form a ball and cage assembly, assembling ball and cage assembly into the outer race at its pulley end, then sliding the shaft, impeller end first, into the outer race through the pulley end such that the first inner raceway and the first balls align with the first outer raceway. The shaft is then displaced in a direction perpendicular to its axial centerline within the outer race. A second plurality of balls is inserted onto the shaft within the outer race at its second outer raceway end, and a second cage is inserted over the shaft and within the outer race to surround the second plurality of balls.

Abstract: A bearing for use in a water pump or similar apparatus and a method of assembling the bearing. The bearing has a stepped shaft and a counterbored raceway at the fan or pulley end which allows for use of a larger number of balls in the raceway at the fan or pulley end, and which allows for using larger balls at the impeller end. The method of assembly of the bearing includes assembling balls and a cage to form a ball and cage assembly, assembling ball and cage assembly into the outer race at its pulley end, then sliding the shaft, impeller end first, into the outer race through the pulley end such that the first inner raceway and the first balls align with the first outer raceway. The shaft is then displaced in a direction perpendicular to its axial centerline within the outer race. A second plurality of balls is inserted onto the shaft within the outer race at its second outer raceway end, and a second cage is inserted over the shaft and within the outer race to surround the second plurality of balls.