CRBA SERIES CROSSED ROLLER BEARING

CRBA series of JCB crossed roller bearing is consisted of an outer ring and an inner ring with a group of cylindrical rollers and spacers (or cages). The rollers are arranged between the inner ring and the outer ring, and spacers are placed between the rollers to prevent them from colliding with each other.

Description

JCB crossed roller bearing (HIWIN series) have six types, including split outer ring type (CRBA), split inner ring type (CRBB), high rigidity type (CRBC), split outer ring with mounting hole type (CRBD), high Rigid with mounting holes (CRBE) and custom (CRBX).

_CRBA series crossed roller bearing is split outer ring type

_Outer Diameter of CRBA series crossed roller bearing is from 36 mm to 480 mm

_Inner Diameter of CRBA series crossed roller bearing is from 20 mm to 400 mm

_Accuracy class of CRBA series crossed roller bearing: P6,P5, P4, P2, D5(PD5),D4(PD4), D2(PD2)

_Seal Symbol of CRBA series crossed roller bearing: WW signifies seals on both sides. NN signifies the open type without seals. Both types have oil holes for lubrication.

_Axial internal clearance of CRBA series crossed roller bearing: C1 signifies positive clearance with less friction force, while C8 signifies negative clearance without back lash, which will result in an increase of friction force during unloading conditions.

Schematic diagram

Table 1

Bearing No.	Dimensions（mm）			Oil holes	Basic loading rates(kN)		Abutment and fillet(mm)			Weight
Bearing No.	d	D	B.T	doh(mm)	C	Co	da	Da	ra	kg
CRBA 02008	20	36	8	1.5	4.1	4	22.9	30.8	0.6	0.04
CRBA 02508	25	41	8	1.5	4.5	4.8	27.9	35.8	0.6	0.05
CRBA 03010	30	55	10	1.5	8.2	9.2	35	46.8	0.6	0.12
CRBA 03510	35	60	10	1.5	8.5	10	40	51.8	0.6	0.13
CRBA 04010	40	65	10	1.5	9.3	11.6	45	56.8	0.6	0.16
CRBA 04510	45	70	10	1.5	9.6	12.5	50	61.8	0.6	0.17
CRBA 05013	50	80	13	2	18.9	23.4	57.2	72	0.6	0.27
CRBA 06013	60	90	13	2	20.3	27	67	82	0.6	0.3
CRBA 07013	70	100	13	2	21.7	30.6	77	92	0.6	0.35
CRBA 08013	80	110	13	2	22.8	34.2	87	102	0.6	0.5
CRBA 08016	80	120	16	2.5	30.2	44.8	92	109	0.6	0.7
CRBA 09016	90	130	16	2.5	30.8	47.4	104	120	1	0.75
CRBA 09020	90	140	20	2.5	39.7	60.2	104	120	1	1.27

Table 2

Bearing No.	Dimensions（mm）			Oil holes	Basic loading rates(kN)		Abutment and fillet(mm)			Weight
Bearing No.	d	D	B.T	doh(mm)	C	Co	da	Da	ra	kg
CRBA 10016	100	140	16	2.5	32.5	52.3	112	129	1	0.83
CRBA 10020	100	150	20	2.5	40.4	63.6	117	132	1	1.45
CRBA 11020	110	160	20	2.5	42.7	70.2	126	143	1	1.56
CRBA 12016	120	150	16	2.5	28.1	50.3	126	143	1	0.72
CRBA 12020	120	170	20	2.5	44.9	76.9	136	153	1.5	1.6
CRBA 12025	120	180	25	2.5	66.3	109	138	158	1.5	2.62
CRBA 13025	130	190	25	2.5	67.8	114.8	148	168	1.5	2.82
CRBA 14025	140	200	25	2.5	69.5	120.6	161	178	1.5	2.96
CRBA 15025	150	210	25	2.5	73.1	131.9	168	188	1.5	3.16
CRBA 15030	150	230	30	3	114.3	187.3	181	198	1.5	5.3
CRBA 16025	160	220	25	2.5	74.5	137.7	181	198	1.5	3.14
CRBA 17020	170	220	20	2.5	52.3	103.6	183	203	1.5	2.21
CRBA 18025	180	240	25	2.5	79.6	154.8	198	218	1.5	3.44
CRBA 19025	190	240	25	2.5	54.5	113.6	203	223	1	2.99

Table 3

Bearing No.	Dimensions（mm）			Oil holes	Basic loading rates(kN)		Abutment and fillet(mm)			Weight
Bearing No.	d	D	B.T	doh(mm)	C	Co	da	Da	ra	kg
CRBA 20025	200	260	25	2.5	82.3	166.4	218	238	2	4
CRBA 20030	200	280	30	3	122.9	242	231	248	2	6.7
CRBA 20035	200	295	35	3	155.9	277.4	238	258	2	9.6
CRBA 22025	220	280	25	2.5	86.3	183.5	237	259	2	4.1
CRBA 24025	240	300	25	2.5	90.5	200.6	257	279	2	4.5
CRBA 25025	250	310	25	2.5	91.6	206.4	267	289	2	5
CRBA 25030	250	330	30	3	142	286.2	280	299	2	9.1
CRBA 25040	250	355	40	4	207	391.8	289	311	2	14.8
CRBA 30025	300	360	25	2.5	100.6	246.5	317	339	2.5	5.9
CRBA 30035	300	395	35	3	191.6	407.8	337	359	2.5	13.4
CRBA 30040	300	405	40	4	227	465.8	339	361	2.5	17.2
CRBA 40035	400	480	35	3	217.4	523.9	426	447	2.5	14.5

How to ensure quality of crossed roller bearing

–Advanced design

From the beginning of design stage, we make a modeling to design crossed roller bearing by advanced design software, then use method of finite element analysis to verify the results.

–Advanced equipment

Base on advanced equipment to ensure product quality, we possess advance processing equipment for key production process, for example, CNC machining center, CNC heat treatment equipment …etc.

–Reliable raw materials

The most important part of ensuring the product quality is raw materials manufacturing, therefore we choose the reliable raw materials to use for element of crossed roller bearing, such as bearing ring and roller etc, we also could provide customize crossed roller bearing with special material.

–Perfect management system

We established perfect management system so to ensure product quality, we passed to certificate ISO9001 quality management system as well as obtain ISO9001 certification, and carry out quality manufacture system strictly for whole process of production from beginning to the end.

–Perfect testing method

We organized a professional and strong testing and inspecting team with advanced test equipment by perfect testing method to guarantee product quality and set up special testing machine and test bed for crossed roller bearing.

If you need formal drawing , please contact with us