A fluid damping system for damping a shaft within a gas turbine engine component. The fluid damping system including a damping liquid and a pressurized gas in a closed self contained system. In one aspect the damping liquid is cooled by being disposed in a heat transfer relationship with a fuel.

In a balancing machine for the measurement of, and compensation for, any unbalance of rotors, with a sliding bearing for rotatably mounting a rotor to be balanced and a supply device for supplying the sliding bearing with a fluid, the sliding bearing includes a bearing shell with a hollow cylindrical bearing face mounting a rotor section having a cylindrical sliding face. The bearing shell is made of a hard ceramic material and the supply device is designed to supply the fluid in minimum amounts...

Respective constituent members of a wheel bearing unit 5 are assembled and also a cover 74 is fixed to an inner end portion of an outer ring 6. The wheel bearing unit 5 is fitted to a turning machine 38 in a state that a space in which an encoder 72 is provided is sealed tightly from an outside by fitting a stop plug 96 into an insertion hole 84 provided in the cover 74. A top end portion of a rotating shaft 40 of a turning machine 38 is engaged with an engaged concave portion 102 provided to a ...

A sealing system of a spherical bearing is constituted in such a manner that annular seal grooves are provided on an inner spherical surface of an outer race with a given space from an edge of the spherical surface, seals are fit in the seal grooves and abut against a spherical surface of an inner race. With this construction, the sealing system of the spherical bearing is easily formed with a high sealing function by tightly abutting the seals fitted in the grooves to the spherical surface of t...

An electrical pittingproof rolling bearing having an insulating film is provided which is not creep-deformed under a bearing load even if used for a long time at high temperature and in which the bearing interference is stable with time under such severe use conditions. An insulating film formed on the surface of a bearing ring comprises a resin having a compression permanent strain of 2% or less under heating/pressurizing conditions in which a pressure of 20 MPa is applied for 24 hours at 120.d...

A ceramic ball bearing assembly (20) has raceway components generally held in residual compression by accompanying metal attachments. In a ceramic ball bearing assembly (20), an outer raceway (22) is formed that is held in compression by a circumscribing steel ring. The components may be fitted together with the ceramic raceway subject to thermal contraction while the steel ring is subject to thermal expansion. Upon mating, the ceramic raceway (22) slightly expands while the steel ring slightly ...

A steering shaft (20) is supported in a steering column member (40). A bearing (50) supports the steering shaft (20) for rotation relative to the steering column member (40). An adhesive (70, 72, 74) fixes the bearing (50) in position between the steering shaft (20) and the steering column member (40). The adhesive (70, 72, 74) is cured in a non-elastic state.

A linear motion guide unit is disclosed in which a lubricant-impregnated plate is mounted on any one side thereof with a backing plate and accommodated in a cartridge. The lubricant-impregnated plate is less subject to deformation or distortion, thus continuing to keep precisely the sliding relation with the raceway grooves on the track rail. Lubricating means are arranged on end caps of the slider, one on each end cap. The lubricating means is composed of a lubricant-impregnated plate of sinter...

When working a linear guide rail having one or more raceway grooves 2 on the side surfaces thereof, using rotary dies each including on the circumferential portion thereof a projection-shaped working portion matched in shape to the raceway groove 2, the raceway grooves 2 are rolled onto a rail blank work W. Since the raceway grooves 2 can be rolled with high accuracy by a single working step, the working time of the raceway grooves as well as the working cost thereof can be reduced.

A removable bearing for mounting on a slot of a supporting wall is disclosed. The removable bearing includes a bearing member having a bore for receiving a rotatable shaft. The bearing also includes a handle fixedly attached to the bearing member. Attached to the handle is a latching member for engaging a corresponding aperture in the supporting wall when mounting the removable bearing thereon. The handle has an engagement portion that allows tool engagement for moving the handle away from the s...