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FGFA bearings

RU-type with mounting holes

RU-type with mounting holes

RU-type with mounting holes

The inner and outer rings are integrated with mounting holes. Since both rings feature mounting holes, no flange or support bracket is required during installation. Furthermore, the monolithic structure of both rings ensures minimal impact on performance during assembly, delivering stable rotational precision and torque. This design is suitable for applications involving rotation of either the inner or outer ring. To meet miniaturization demands in industries such as humanoid robotics, ultra-compact and ultra-thin RU-type products are available, with bore diameters as small as 8mm and thicknesses as thin as 5mm.

Nominal model		Main dimensions (mm)					Roller pitch diameter	Lubrication hole	Rated load(KN)		Installation hole relationship size(mm)				Installation dimensions(mm)		Weight(kg)
open type	Sealed type	d	D	B	r1(min)	r2(min)	dp	d1	Cr	Cor	PCD1	Inner ring installation hole	PCD2	Outer ring installation hole	ds	Dh	Weight(kg)
RU35045X	RU35045XUU	350	540	45	2.5	2.5	445.4=RU445X	6	222	473	385	24-M12Through	505	16-φ14Throughφ20Counterbore depth13	417	473	35.4
RU35045G	RU35045GUU	350	540	45	2.5	2.5	445.4=RU445G	6	222	473	385	24-φ14Throughφ20Counterbore depth13	505	16-φ14Throughφ20Counterbore depth13	417	473	35.4
RU35045	RU35045UU	350	540	45	2.5	2.5	445.4=RU445	6	222	473	385	24-φ14Throughφ20Counterbore depth13	505	16-φ14Throughφ20Counterbore depth13	417	473	35.4
RU21040X	RU21040XUU	210	380	40	2.5	2.5	297.3=RU297X	6	156	281	240	16-M12Through	350	16-φ14Throughφ20Counterbore depth13	272	320	21.3
RU21040G	RU21040GUU	210	380	40	2.5	2.5	297.3=RU297G	6	156	281	240	16-φ14Throughφ20Counterbore depth13	350	16-φ14Throughφ20Counterbore depth13	272	320	21.3
RU21040	RU21040UU	210	380	40	2.5	2.5	297.3=RU297	6	156	281	240	16-φ14Throughφ20Counterbore depth13	350	16-φ14Throughφ20Counterbore depth13	272	320	21.3
RU16035X	RU16035XUU	160	295	35	2	2	227.5=RU228X	6	104	173	184	12-M10Through	270	12-φ11Throughφ17.5Counterbore depth10.8	208	246	11.4
RU16035G	RU16035GUU	160	295	35	2	2	227.5=RU228G	6	104	173	184	12-φ11Throughφ17.5Counterbore depth10.8	270	12-φ11Throughφ17.5Counterbore depth10.8	208	246	11.4
RU16035	RU16035UU	160	295	35	2	2	227.5=RU228	6	104	173	184	12-φ11Throughφ17.5Counterbore depth10.8	270	12-φ11Throughφ17.5Counterbore depth10.8	208	246	11.4
RU11528X	RU11528XUU	115	240	28	1.5	1.5	178=RU178X	3.1	84.3	138	139	12-M8Through-hole, evenly spaced	217	12-φ9Through-hole, evenly spaced φ14Deep hole, depth13.5	162	198	6.81
RU11528G	RU11528GUU	115	240	28	1.5	1.5	178=RU178G	3.1	84.3	138	139	12-φ9Through-hole, evenly spaced φ14Deep hole, depth13.5	217	12-φ9Through-hole, evenly spaced φ14Deep hole, depth13.5	162	198	6.63
RU11528	RU11528UU	115	240	28	1.5	1.5	178=RU178	3.1	84.3	138	139	12-φ9Through-hole, evenly spaced φ14Deep hole, depth13.5	217	12-φ9Through-hole, evenly spaced φ14Deep hole, depth13.5	162	198	6.63
RU9025X	RU9025XUU	90	210	25	1.5	1.5	147.5=RU148X	3.1	73.4	108	112	12-M8Through-hole, evenly spaced	187	12-φ9Through-hole, evenly spaced φ14Deep hole, depth12	132	168	4.83
RU9025G	RU9025GUU	90	210	25	1.5	1.5	147.5=RU148G	3.1	73.4	108	112	12-φ9Through-hole, evenly spaced φ14Deep hole, depth12	187	12-φ9Through-hole, evenly spaced φ14Deep hole, depth12	132	168	4.67
RU9025	RU9025UU	90	210	25	1.5	1.5	147.5=RU148	3.1	73.4	108	112	12-φ9Through-hole, evenly spaced φ14Deep hole, depth12	187	12-φ9Through-hole, evenly spaced φ14Deep hole, depth12	132	168	4.67
RU8022X	RU8022XUU	80	165	22	0.6	1	124=RU124X	3.1	51.1	72	97	10-M5Through-hole, evenly spaced	148	10-φ5.5Through-hole, evenly spaced φ9.5Deep hole, depth5.4	107	137	2.63
RU8022G	RU8022GUU	80	165	22	0.6	1	124=RU124G	3.1	51.1	72	97	10-φ5.5Through-hole, evenly spaced φ9.5Deep hole, depth5.4	148	10-φ5.5Through-hole, evenly spaced φ9.5Deep hole, depth5.4	107	137	2.6
RU8022	RU8022UU	80	165	22	0.6	1	124=RU124	3.1	51.1	72	97	10-φ5.5Through-hole, evenly spaced φ9.5Deep hole, depth5.4	148	10-φ5.5Through-hole, evenly spaced φ9.5Deep hole, depth5.4	107	137	2.6
RU5515X	RU5515XUU	55	120	15	0.6	0.6	85=RU85	3.1	20.1	27.7	65	8-M5Through-hole, evenly spaced	105	8-φ5.5Through-hole, evenly spaced φ9.5Deep hole depth5.4	76	94	0.96
RU405X	RU405XUU	40	73	5	0.15	0.15	56.5	-	2.4	3.4	46	8-M2.5Through-hole, evenly spaced	65	8-φ2.9Through-hole, evenly spaced φ5.5Deep hole depth2.8	51.5	58	0.1
RU3515X	RU3515XUU	35	95	15	0.6	0.6	66=RU66	3.1	17.3	20.9	45	8-M4Through-hole, evenly spaced	83	8-φ4.5Through-hole, evenly spaced φ8Deep hole depth4.4	56	74	0.66
RU305X	RU305XUU	30	63	5	0.15	0.15	46.5	-	2.1	2.7	36	8-M2.5Through-hole, evenly spaced	55	8-φ2.9Through-hole, evenly spaced φ5.5Deep hole depth2.8	41.5	48	0.08
RU2512X	RU2512XUU	25	80	12	0.6	0.6	57=RU57	3.1	8.61	10.6	35	6-M3Through-hole, evenly spaced	67	6-φ3.4Through-hole, evenly spaced φ6.5Deep hole depth3.3	46.5	58.5	0.4
RU2012X	RU2012XUU	20	70	12	0.3	0.3	41.5=RU42	3.1	7.6	8.37	28	6-M3Through-hole, evenly spaced	57	6-φ3.4Through-hole, evenly spaced φ6.5Deep hole depth3.3	36.5	48.5	0.31
RU205X	RU205XUU	20	53	5	0.15	0.15	36.5	-	1.8	2.1	26	6-M2.5Through-hole, evenly spaced	45	6-φ2.9Through-hole, evenly spaced φ5.5Deep hole depth2.8	31.5	38	0.06

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Wafangdian Fafuge Bearing Co., Ltd., rooted in Wafangdian Bearing Industry Base, is an emerging professional bearing manufacturer. Drawing on the base’s profound industrial heritage, we have upheld craftsmanship since inception, integrated precision manufacturing into R&D and production, and focused on the R&D and refined production of spherical roller bearings.

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