RU228X UUCC0P5 P4 P2 Series Crossed Roller Ring

RU series cross cylindrical roller bearing (integral inner and outer ring, with mounting hole)
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Because the mounting holes have been processed for this series, no fixed flanges and supports are required.In addition, due to the use of the integrated inner and outer ring structure with a seat, the installation has little impact on the performance, so stable rotation accuracy and torque can be obtained.Can be used for outer ring and inner ring rotation.

Structural features
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cross roller bearing, cylindrical roller in a 90 degree v-groove rolling surface through the isolation block is perpendicular to each other, so cross roller bearing can bear radial load, axial load and torque load and other multi-direction load.The size of the inner and outer ring is miniaturized, and the extremely thin form is close to the limit of the small size, with high rigidity, and the accuracy can reach P5, P4, P2.Therefore, it is suitable for the joint and rotary parts of industrial robots, the rotary table of machining center, precision rotary table, medical machines, calculators, military industry, IC manufacturing devices and other equipment.

Rotation accuracy
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the bearings in the vertical arrangement of the rollers between the isolation block, prevent the roller tilt and mutual friction between the rollers, reduce the rotation torque.In addition, compared with the previous use of plate retainer, roller in one side contact or locking phenomenon will not occur.At the same time, because the inner ring (or outer ring) is a two-part structure, the bearing clearance can be adjusted, even if the preload is applied, can also obtain high precision rotation movement.

Features
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the split inner ring (or outer ring) is fixed together with the cross roller shaft ring after loading the roller and spacer holder to prevent separation from each other. Therefore, it is easy to install the cross roller shaft ring.The friction between the rollers is eliminated by the spacer holder to prevent the roller from falling sideways, thus obtaining stable rotating torque.Due to the cross arrangement of the rollers, only one set of cross roller bearings can bear the load in all directions, compared with the traditional model, the rigidity is increased 3~4 times.

Dimensions and specification
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RU series(one-piece of inner and outer ring,with the installation holes)

Bearing Type	Dimension					Shoulder Height		Basic Load Rating  (Radial)		Weight
	Inner Ring	Outer Ring	Roller Pitch Diameter	Height	Chamfer			Cr	Cor
	d	D	Dpw	B  B1	rmin	ds	Dh	kN	kN	kg
RU 28	10	52	27.2	8	0.3	24	31	2.91	2.43	0.12
RU 42	20	70	41.5	12	0.6	37	47	7.35	8.35	0.29
RU 66	35	95	66	15	0.6	59	74	17.5	22.3	0.62
RU 85	55	120	85	15	0.6	79	93	20.3	29.5	1
RU 124(G) RU 124X	80	165	124	22	1	114	134	33.1	50.9	2.6
RU 148(G)	90	210	147.5	25	1.5	133	162	49.1	76.8	4.9
RU 148X
RU 178(G)	115	240	178	28	1.5	161	195	80.3	135	6.8
RU 178X
RU 228(G)	160	295	227.5	35	2	208	246	104	173	11.4
RU 228X
RU 297(G)	210	380	297.5	40	2.5	272	320	156	281	21.3
RU 297X
RU 445(G)	350	540	445.4	45	2.5	417	473	222	473	35.4
RU 445X

LYMD BEARING COMPANY
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LYMD bearing company co,ltd is a professional manufacturer in the bearing field. Our main product are YRT series rotary table bearing and crossed roller bearings(P5,P4 orP2). Rotary table bearings include the YRT basic series, YRTS, YRTM r and ZKLDF. Crossed roller bearings cover RB, RE, HYRU, RA, CRBH, SX, XR, JXR series crossed taper roller bearings.  Welcome you to visit us factory!!! We support you check the goods before delivery.

Contact us
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Here, you will get the best quality, the most competitive prices, the shortest delivery time and the highest quality service.  For more information, pls don't hesitate to contact me, the price list will be send to you.
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