Due to the manufactured mounting hole of RU series, fixing flange and housing are not required. In addition, because of the integrated structure of inner ring and outer ring with housing, there is no influence on performance while mounting, therefore, stable rotational accuracy and torque are acquired. These series are suitable to the rotation of outer ring and inner ring. RU series include two types: RU (open type) and RU···UU (two sides sealed type). ZYS can also supply RU···U(one side sealed type) on customers' requirements.

Model No.	Boundary dimensions				Shoulder height		Basic load rating (radial)		Weight
	d mm	D mm	B mm	Rmin mm	da mm	Da mm	C kN	Co kN	≈ kg
RU42	20	70	12	0.6	37	47	7.35	8.35	0.29
RU66	35	95	15	0.6	59	74	17.5	22.3	0.62
RU85	55	120	15	0.6	79	93	20.3	29.5	1
RU124(G)	80	165	22	1	114	134	33.1	50.9	2.6
RU124X
RU148(G)	90	210	25	1.5	133	162	49.1	76.8	4.9
RU148X
RU178(G)	115	240	28	1.5	161	195	80.3	135	6.8
RU178X
RU228(G)	160	295	35	2	208	246	104	172	11.4
RU228X
RU297(G)	210	380	40	2.5	272	320	156	281	21.3
RU297X
RU445(G)	350	540	45	2.5	417	473	222	473	35.4
RU445X

Note: ZYS also supplies RU…UU type.

Mounting Hole Related										Model No.
Inner ring					Outer ring
dn mm	do mm	ds mm	ts mm		Dn mm	Do mm	Ds mm	Ts mm
28	M3			6	57	3.4	6.5	3.3	6	RU42
45	M4			8	83	4.5	8	4.4	8	RU66
65	M5			8	105	5.5	9.5	5.4	8	RU85
97	Φ5.5	9.5	5.4	10	148	5.5	9.5	5.4	10	RU124(G) RU124X
	M5
112	Φ9	14	8.6	12	187	9	15	8.6	12	RU148(G) RU148X
	M8
139	Φ9	14	8.6	12	217	19	14	8.6	12	RU178(G) RU178X
	M8
184	Φ11	17.5	10.8	12	270	11	17.5	10.8	12	RU228(G) RU228X
	M10
240	Φ14	20	13	16	350	14	20	13	16	RU297(G) RU297X
	M12
385	Φ14	20	13	24	505	14	20	13	24	RU445(G) RU445X
	M12