摘要:
Present invention relates to provide a cage suited in particular to a supersized roller bearing, which is easy to improve rigidity, realizes a reduction in manufacturing costs, facilitates dimension management and accuracy management, and is less prone to progress abrasion of end surfaces of rollers. A roller bearing cage (1A) is configured such that a pair of ring parts (4, 6) axially separated from each other is connected by column parts (5) sliding on outer peripheral surfaces of rollers (RA), and pocket holes (P) are evenly formed to store and hold the rollers (RA) in a peripheral wall portion in a circumferential direction. The cage (1A) is manufactured such that a base body (2) including the ring part (4) and the column parts (5) with square columnar convexes (5A) and a connection body (3) including the ring part (6) with square holes (6A) are set as separate members.
摘要:
This rolling bearing retainer (RT) which is formed by insert molding a resinous material together with a core member (1) within a mold, in which the core member (1) is embedded within a resin part (2) made of the resinous material and there is provided a support area exposure part (16) at a plurality of locations of the resin part (2) for exposing a support area (6) of the core member (1) supported within a cavity of the mold. The resin part (2) includes a ring shaped body (23) and a plurality of support column bodies (24) extending axially from the ring shaped body (23) and defining a pocket (Pt) for retaining a rolling element therebetween, and the core member (1) is provided with a ring shaped body embedded part (3a) and a plurality of support column body embedded parts (3b) extending from the ring shaped body embedded part (3a).
摘要:
Construction of a thrust roller bearing with races is achieved in which a function of preventing a cage 3, first thrust race 4a and second thrust race 5a from separating from each other can be maintained, the amount of eccentricity that is allowed between a pair of members that rotate relative to each other can be increased, and the amount of lubricant that can flow inside the bearing can be increased. The outer diameter of the outer-diameter side flange 8a that is formed around the outer circumferential edge section of the first thrust race 4a is 60 mm to 120 mm, the inner diameter of the inner-diameter side flange 11a that is formed around the inner-circumferential edge section of the inner-diameter side flange 5a is 40 mm to 80 mm, and the internal gap is 1 mm to 2 mm. Therefore, outer-diameter side locking sections 9a are intermittently formed in the circumferential direction on the tip-end edge of the outer-diameter side flange 8a.
摘要:
A thrust roller bearing comprises a retainer (1) having pockets (5) provided in the circumferential direction between the outer diameter side race guide part (2a) and the inner diameter side race guide part (2b) at predetermined intervals, and rollers (10) so contained in the pockets (5) as to be capable of performing rolling motion. Projections (6a, 6b) are formed on each of the pockets (5) at a substantially lateral center of its outer diameter side end surface. The roller (10) is so contained in the pocket (5) that the roller (10) is opposed to the projections (6a, 6b) at the peripheral side of the axial end surface outer from its center.
摘要:
Guide grooves (6) for guiding lubricating oil (L) from a small rib-side end portion (3b) of an inner ring (3) to a large rib-side end portion (3c) thereof are formed at an inner periphery of a cage (5).
摘要:
The invention relates to a radial antifriction bearing (1) which substantially consists of an outer bearing ring (2) and of an inner bearing ring (3) as well as of a multitude of rollers (4), arranged between the bearing rings (2, 3) and held by a bearing cage (5). The rollers (4) are configured in the form of spherical disks that each have two parallel lateral surfaces (8, 9) which are symmetrically flattened from a basic spherical shape. The bearing cage (5) according to the invention is characterized by having cage pockets (15) in which the rollers (4) are axially guided between the bearing rings (2, 3) via two low-friction point contacts between the center areas (16, 17) of their lateral surfaces (8, 9) and the longitudinal webs (18, 19) of the cage pockets (15). The rollers are configured to have a defined degree of freedom for tilt movements exerted at an angle to the running direction and a defined degree of freedom for self-adjustment to the pressure angle of the radial antifriction bearing (1).
摘要:
There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing (1) including at least two radially arranged rows of rollers (2) and a cage (3) holding the rollers, the rollers including at least one roller crowned (25). The number of rollers of the at least two rows is equal and radially adjacent rollers are provided in a common pocket of a cage.
摘要:
There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing (1) including at least two radially arranged rows of rollers (2) and a cage (3) holding the rollers, the rollers including at least one roller crowned (25).
摘要:
A bearing cage for retaining rolling elements of a rolling element bearing, the bearing cage having at least one first ring structure to which at least one first cage bar is connected. The at least one first cage bar comprises a side surface that is arranged to extend along an outer surface of a rolling element when the bearing cage is in use, whereby the side surface comprises a radially outer edge and a radially inner edge. The distance between the radially outer edges of two adjacent cage bars between which a rolling element is located when the bearing cage is in use is greater than the distance between two adjacent radially inner edges of the two adjacent cage bars.