RB split-type cross roller bearings for inner and outer rings

The split‑inner‑and‑outer‑ring series of cross roller bearings is a fundamental type of cross roller bearing. It features a split outer ring and an integral inner ring, making it ideal for equipment that demands high rotational accuracy of the inner ring and space‑saving design.

The split‑inner‑and‑outer‑ring series of crossed roller bearings is a fundamental type of crossed roller bearing. It features a split outer ring and an integral inner ring, making it ideal for equipment that demands high rotational accuracy of the inner ring and space‑saving design.

Features of the RB split-type cross roller bearings for inner and outer rings

1. High rotational accuracy and anti‑seizure design

The RB split‑type cross roller bearing series features a split inner and outer ring design, ensuring balanced rotational torque. Under load, it automatically adjusts clearance to prevent the rollers from seizing, thereby maintaining highly precise rotational motion.

2. Space-saving

In certain applications where bearing space is at a premium—such as the precision rotary and joint components of industrial robots—the RB split‑inner‑outer‑ring cross‑roller bearings offer a compact footprint, enabling significant space savings when integrated into industrial robotic systems and similar equipment.

3. Easy to install and use

The RB split‑inner‑and‑outer‑ring series of cross roller bearings features a split‑ring design, which simplifies the installation of rollers and retainers. In operation, these bearings are suitable for mounting in all directions along the spindle axis, ensuring equally straightforward use.

4. Simplify the equipment structure

The split-type cross-roller bearings in the RB inner–outer ring series can withstand substantial loads in axial, radial, and other directions, thereby simplifying equipment design and reducing overall weight.

5. High rigidity

The RB split‑inner‑and‑outer‑ring series of cross roller bearings offers significantly higher rigidity than conventional bearings. For equipment with stringent rigidity requirements, selecting the RB split‑inner‑and‑outer‑ring series can fully meet those specifications.

6. Low-Consumption Lubricant

The split‑ring cross roller bearings in the RB series deliver high rotational performance and low heat generation during equipment operation, resulting in correspondingly lower lubricant consumption.

Applications of the RB split-type cross roller bearings for inner and outer rings

1. Machine tool

: Turret indexing, dividing heads, loaders, and the rotary components of machine tool indexing tables—driven by internal-rotor direct-drive motors;

2. Industrial robots

: Rotation, joint-driven component;

3. Medical devices

: Rotating section of the robotic arm, rotary worktable, and rotary support assembly;

4. Liquid Crystal Manufacturing Equipment

: Material-handling robot, inspection platform, photosensitive coating roller drive;

5. Radar Communication

: Rotating support section;

6 Printing press

: Photosensitive agent coating roller drive;

7. Semiconductor manufacturing equipment

: Transport robots, inspection platforms.

Product Specifications

 

Model and Specification Parameters for the RB Split Inner-and-Outer-Ring Crossed Roller Bearings Series
Model number	Size							Basic rated load (kN), radial		Weight
	Inner diameter	Outer diameter	Diameter	Height	Oil hole		rmin
	d	D	dp	B, B1	a	b		C	Co	Kilogram
RB 2008	20	36	27	8	2	0.8	0.5	3.23	3.1	0.04
RB 2508	25	41	32	8	2	0.8	0.5	3.63	3.83	0.05
RB 3010	30	55	41.5	10	2.5	1	0.6	7.35	8.36	0.12
RB 3510	35	60	46.5	10	2.5	1	0.6	7.64	9.12	0.13
RB 4010	40	65	51.5	10	2.5	1	0.6	8.33	10.6	0.16
RB 4510	45	70	56.5	10	2.5	1	0.6	8.62	11.3	0.17
RB 5013	50	80	64	13	2.5	1.6	0.6	16.7	20.9	0.27
RB 6013	60	90	74	13	2.5	1.6	0.6	18	24.3	0.3
RB 7013	70	100	84	13	2.5	1.6	0.6	19.4	27.7	0.35
RB 8016	80	120	98	16	3	1.6	0.6	30.1	42.1	0.7
RB 9016	90	130	108	16	3	1.6	1	31.4	45.3	0.75
RB 10016	100	140	119.3	16	3.5	1.6	1	31.7	48.6	0.83
RB 10020		150	123	20	3.5	1.6	1	33.1	50.9	1.45
RB 11012	110	135	121.8	12	2.5	1	0.6	12.5	24.1	0.4
RB 11015		145	126.5	15	3.5	1.6	0.6	23.7	41.5	0.75
RB 11020		160	133	20	3.5	1.6	1	34	54	1.56
RB 12016	120	150	134.2	16	3.5	1.6	0.6	24.2	43.2	0.72
RB 12025		180	148.7	25	3.5	2	1.5	66.9	100	2.62
RB 13015	130	160	144.5	15	3.5	1.6	0.6	25	46.7	0.72
RB 13025		190	158	25	3.5	2	1.5	69.5	107	2.82
RB 14016	140	175	154.8	16	2.5	1.6	1	25.9	50.1	1
RB 14025		200	168	25	3.5	2	1.5	74.8	121	2.96
RB 15013	150	180	164	13	2.5	1.6	0.6	27	53.5	0.68
RB 15025		210	178	25	3.5	2	1.5	76.8	128	3.16
RB 15030		230	188	30	4.5	3	1.5	100	156	5.3
RB 16025	160	220	188.6	25	3.5	2	1.5	81.7	135	3.14
RB 17020	170	220	191	20	3.5	1.6	1.5	29	62.1	2.21
RB 18025	180	240	210	25	3.5	2	1.5	84	143	3.44
RB 19025	190	240	211.9	25	3.5	1.6	1	41.7	82.9	2.99
RB 20025	200	260	230	25	3.5	2	2	84.2	157	4
RB 20030		280	240	30	4.5	3	2	114	200	6.7
RB 20035		295	247.7	35	5	3	2	151	252	9.6
RB 22025	220	280	250.1	25	3.5	2	2	92.3	171	4.1
RB 24025	240	300	269	25	3.5	2	2.5	68.3	145	4.5
RB 25025	250	310	277.5	25	3.5	2	2.5	69.3	150	5
RB 25030		330	287.5	30	4.5	3	2.5	126	244	8.1
RB 25040		355	300.7	40	6	3.5	2.5	195	348	14.8
RB 30025	300	360	328	25	3.5	2	2.5	76.3	178	5.9
RB 30035		395	345	35	5	3	2.5	183	367	13.4
RB 30040		405	351.6	40	6	3.5	2.5	212	409	17.2
RB 35020	350	400	373.4	20	3.5	1.6	2.5	54.1	143	3.9
RB 40035	400	480	440.3	35	5	3	2.5	156	370	14.5
RB 40040		510	453.4	40	6	3.5	2.5	241	531	23.5
RB 45025	450	500	474	25	3.5	1.6	1	61.7	182	6.6
RB 50025	500	550	524.2	25	3.5	1.6	1	65.5	201	7.3
RB 50040		600	548.8	40	6	3	2.5	239	607	26
RB 50050		625	561.6	50	6	3.5	2.5	267	653	41.7
RB 60040	600	700	650	40	6	3	3	264	721	29