Abstract: An upper body includes a bearing seat surface that is fixed by a bearing bolt to the upper surface of a swing bearing, a swing frame that includes an intersecting side plate intersecting the bearing seat surface and is fixed to the bearing seat surface, and a force dispersing member. The force dispersing member includes at least one vertical plate extending in the up-down direction. The at least one vertical plate is fixed to a region of the bearing seat surface other than a force dispersion target region.

Abstract: In a press machine vertically moving a ram by turning a threaded member, the ram has a bearing holder that holds a bearing whose outer ring is solidly engaged with the bearing holder and whose inner ring is solidly fitted to a lower end part of the threaded member. A fine clearance is formed between a lower face of the threaded member and a bottom face of the bearing holder so that the threaded member and bearing holder are allowed to rotate relative to each other. The fine clearance is set so that, when load is applied to the ram to cause a relative slight movement in a vertical direction between the inner and outer rings of the bearing, the lower face of the threaded member and the bottom face of the bearing holder come into contact with each other.

Abstract: Disclosed is a planetary hollow rotating platform structure including a force output shaft installed at a cross bearing and a deceleration mechanical device with a single bearing. The structure has the effects of reducing the number of required components and the volume of the structure to simplify the structural complexity and reduce the occupied space and volume.

Abstract: A roller body or plain bearing component exhibits a core body (1) of ceramic material which is coated with a lapped hard layer (3) (e.g. titanium carbide, Diamond . . . ).

Abstract: A self-centering clutch release bearing for sustained alignment is disclosed comprising an operating member having a transverse flange, an annular bearing plate bearing axially against the flange and cooperating with a throw-out fork, a drive member (e.g. a ball bearing) coacting with clutch release members (e.g. diaphragm spring fingers) mounted for limited radial movement relative to the operating member. Resilient portions alternate with bearing portions on the bearing plate and axial tabs extend from the resilient portions for coupling the drive member to the operating member, the resilient portions biasing the drive member toward a flange on the operating member.

Abstract: A clutch release bearing comprises an operating member cooperating with a throw-out fork and a drive member coacting with the release members of an associated clutch. The operating member comprises a sleeve mounted on a guide member and having relatively rigid projections running along the bore of the sleeve for sliding engagement with the guide member. Channels for accommodating solid grease are provided between the projections and are open at one end of the sleeve.

Abstract: An improved self-centering bearing assembly for clutch release mechanism includes a radial bearing with a rotatable inner and non-rotatable outer race. The outer race is resiliently held for radial self-centering movement by an attachment member which mounts the bearing assembly to a plastic carrier of the clutch release mechanism. The resilient element that allows self-centering is compressed between a radial flange of the attachment and a face of the outer race. When removed from the carrier, the resilient element expands sufficiently to bias the radial flange into a radially extending portion of a declutching finger contacting member rigid to the inner race. This retains the attachment member to the bearing as a separately handled, rattle-free unit.