RU Crossed Roller Bearings

RU crossed roller bearing series（Integrated Inner/Outer Ring type） Since the mounting holes are provided, the model does not require a presser flange or housing. In addition, because it has an integrated inner/outer ring structure and is equipped with washers, its performance is minimally affected by the mounting procedure, ensuring stable rotation accuracy and torque. 

RU crossed roller bearing can be used for both inner-ring rotation and outer-ring rotation.

RU crossed roller bearing characteristics:

1. High precision: P4 precision, P2 precision

2. High rigidity: This series bearing have preload

3. High load：This series bearing can bear double-direction axial load, radial load and tilting moment

4. Small size: This series bearing can save space for machine tools

shaft diameter (mm)	Identification number	Main dimensions						Shoulder height		Basic load rating（radial）		weight
		inner ring	outer ring	Roller   pitch circle diameter dp	width	Greasing hole	Chamfer	ds	Dh	C	C0	Kg
		d	D	(mm)	B B1	φ	r(min)			KN	KN
		(mm)	(mm)		(mm)
55	RU85	55	120	85	15	3.1	0.6	79	93	20.3	29.5	1
80	RU124(G)	80	165	124	22	3.1	1	114	134	33.1	50.9	2.6
	RU124X
90	RU148(G)	90	210	147.5	25	3.1	1.5	133	162	49.1	76.8	4.9
	RU148X
115	RU178(G)	115	240	178	28	3.1	1.5	161	195	80.3	135	6.8
	RU178X
160	RU228(G)	160	295	227.5	35	6	2	208	246	104	172	11.4
	RU228X
210	RU297(G)	210	380	297.3	40	6	2.5	272	320	156	281	21.3
	RU297X
350	RU445(G)	350	540	445.4	45	6	2.5	417	473	222	473	35.4