Product Details

Alibaba recommend THK RU178 Crossed Roller Bearing RU178

Product Description

With the CrossRoller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90 V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including, radial, axial and moment loads.Since the CrossRoller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.

High Rotation Accuracy

The spacer retainer keeps rollers in their proper position, thereby preventing them from skewing. This eliminates friction between rollers, and therefore secures a stable rotation torque. Since the inner and outer rings are designed to be separable, the bearing clearance can be adjusted. In addition, highly accurate rotary motion is ensured through adjusting the bearing clearance to provide a preload.

Easy Handling

The inner and outer rings, which are separable, are secured to the Cross Roller Ring body after the rollers and spacer retainers are installed.This procedure prevents the rings from separating from each other. Thus, it is easy to handle the rings when installing the Cross-Roller Ring.

Skewing Prevention

The spacer retainer fitting among crossarrayed rollers prevents rollers from skewing and the rotation torque from increasing duefriction between rollers. Unlike conventional types using steel sheet retainers, the CrossRoller Ring does not cause displacement or locking of rollers and provides a stable rotation torque.

Cross-Roller bearing outline

Model RB(Separable Outer Ring,Type for Inner Ring Rotation)

Being the basic model of the Cross-Roller Ring,despite the minimum possible dimensions of the inner and outer rings,its outer ring is separable while the inner ring is integrated with the main body.This model is used in locations where the rotation accuracy of the inner ring is required.

Shaft diameter	Model	Main dimensions					Weight(kg)
50	RB 5013	50	80	64	13	2.5	0.27
60	RB 6013	60	90	74	13	2.5	0.3
70	RB 7013	70	100	84	13	2.5	0.35
80	RB 8016	80	120	98	16	3	0.7
90	RB 9016	90	130	108	16	3	0.75
100	RB 10016	100	140	119.3	16	3.5	0.83
100	RB 10020	100	150	123	20	3.5	1.45
110	RB 11012	110	135	121.8	12	2.5	0.4
	RB 11015		145	126.5	15	3.5	0.75
	RB 11020		160	133	20	3.5	1.56
120	RB 12016	120	150	134.2	16	3.5	0.72
120	RB 12025	120	180	148.7	25	3.5	2.62
130	RB 13015	130	160	144.5	15	3.5	0.72
130	RB 13025	130	190	158	25	3.5	2.82
140	RB 14016	140	175	154.8	16	2.5	1
140	RB 14025	140	200	168	25	3.5	2.96
150	RB 15013	150	180	164	13	2.5	0.68
	RB 15025		210	178	25	3.5	3.16
	RB 15030		230	188	30	4.5	5.3
160	RB 16025	160	220	188.6	25	3.5	3.14
170	RB 17020	170	220	191	20	3.5	2.21
180	RB 18025	180	240	210	25	3.5	3.44
190	RB 19025	190	240	211.9	25	3.5	2.99

Model RE(Separable Inner Ring,Type for Outer Ring Rotation)

This new model is based on the design of pricipal of the RB,Having the same major dimensions as model RB,its inner ring its inner ring is separable while the outer ring is integrated with the main body,this model is used in location is used in location where the rotation accuracy of the outer ring is required.

Shaft diameter	Model	Main dimensions				Weight(kg)
50	RE 5013	50	80	66	13	0.27
60	RE 6013	60	90	76	13	0.3
70	RE 7013	70	100	86	13	0.35
80	RE 8016	80	120	101.4	16	0.7
90	RE 9016	90	130	112	16	0.75
100	RE 10016	100	140	121.1	16	0.83
100	RE 10020	100	150	127	20	1.45
110	RE 11012	110	135	123.3	12	0.4
	RE 11015		145	129	15	0.75
	RE 11020		160	137	20	1.56
120	RE 12016	120	150	136	16	0.72
120	RE 12025	120	180	152	25	2.62
130	RE 13015	130	160	146	15	0.72
130	RE 13025	130	190	162	25	2.82
140	RE 14016	140	175	160	16	1
140	RE 14025	140	200	172	25	2.96
150	RE 15013	150	180	166	13	0.68
	RE 15025		210	182	25	3.16
	RE 15030		230	192	30	5.3
160	RE 16025	160	220	192	25	3.14
170	RE 17020	170	220	196.1	20	2.21
180	RE 18025	180	240	210	25	3.44
190	RE 19025	190	240	219	25	2.99

Model RU(Integrated Inner/Outer Ring Type)

Since the mounting holes are provided,this 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.This model can be used for both inner-ring rotation and outer-ring rotation.

Shaft diameter	Model	Main dimensions				Weight(kg)
20	RU42	20	70	41.5	12	0.29
35	RU66	35	95	66	15	0.62
55	RU85	55	120	85	15	1
80	RU124(G)	80	165	124	22	2.6
	RU124X
90	RU148(G)	90	210	147.5	25	4.9
	RU148X
115	RU178(G)	115	240	178	28	6.8
	RU178X
160	RU228(G)	160	295	227.5	35	11.4
	RU228X
210	RU297(G)	210	380	297.3	40	21.3
	RU297X
350	RU445(G)	350	540	445.4	45	35.4
	RU445X

CRB

Model CRB(Separable Outer Ring,Type for Inner Ring Rotation)

Its structure is that the outer ring is separable while the inner ring is integrated with the main body.without cage,but full complement,this model is used in locations where the accuracy of inner ring is required.

Shaft	With cage	Full complement	Main size				Weight(kg)
50	CRBC 5013	CRB 5013	50	80	13	0.6	0.29
60	CRBC 6013	CRB 6013	60	90	13	0.6	0.33
70	CRBC 7013	CRB 7013	70	100	13	0.6	0.38
80	CRBC 8016	CRB 8016	80	120	16	0.6	0.74
90	CRBC 9016	CRB 9016	90	130	16	1	0.81
100	CRBC 10020	CRB 10020	100	150	20	1	1.45
110	CRBC 11020	CRB 11020	110	160	20	1	1.56
120	CRBC 12025	CRB 12025	120	180	25	1.5	2.62
130	CRBC 13025	CRB 13025	130	190	25	1.5	2.82
140	CRBC 14025	CRB 14025	140	200	25	1.5	2.96
150	CRBC 15025	CRB 15025	150	210	25	1.5	3.16
150	CRBC 15030	CRB 15030	150	230	30	1.5	5.3
200	CRBC 20025	CRB 20025	200	260	25	2	4
	CRBC 20030	CRB 20030	200	280	30	2	6.7
	CRBC 20035	CRB 20035	200	295	35	2	9.58

SX series

Model	Main size					Weight(kg)
SX011814	70	90	80	10	1.2	0.3
SX011818	90	115	102	13	1.2	0.4
SX011820	100	125	112	13	1.2	0.5
SX011824	120	150	135	16	1.5	0.8
SX011828	140	175	157	18	1.5	1.1
SX011832	160	200	180	20	1.5	1.7
SX011836	180	225	202	22	2	2.3
SX011840	200	250	225	24	2	3.1
SX011848	240	300	270	28	2	5.3
SX011860	300	380	340	38	2.5	12
SX011868	340	420	380	38	2.5	13.5
SX011880	400	500	450	46	2.5	24
SX0118500	500	620	560	56	2.5	44