CRBH Series Crossed Roller Bearings

The CRBH series crossed roller bearings are one of the many types of crossed roller bearings, featuring an integral inner and outer ring design as well as a thin‑walled construction. This model has no mounting holes in its inner or outer rings, allowing it to be secured using suitable bearing housings.

The CRBH series crossed roller bearings are one of the many types available, featuring an integral inner and outer ring design as well as a thin‑walled construction. This model has no mounting holes in its inner or outer rings, allowing it to be secured using supporting housings. However, the monolithic inner and outer ring structure ensures that installation does not compromise bearing performance, enabling stable torque transmission and precise rotational accuracy. Additionally, the use of high‑quality raceways and cage assemblies further enhances the bearing’s rotational flexibility.

I. Features of the CRBH Series Crossed Roller Bearings

1. Takes up little space

The CRBH series of cross-roller bearings features a compact outer diameter and a narrow width, making them an excellent choice for applications that demand high performance while minimizing space requirements. They can also be used in conjunction with retainers, spacers, or integrated component assemblies, further reducing overall footprint and helping to optimize space utilization in the host equipment.

2. High precision

The CRBH series cross-roller bearings are robust, featuring a non-separable inner and outer ring design that delivers high precision while remaining unaffected by surrounding structural constraints.

3. Simple operation

The CRBH series crossed roller bearings feature high rigidity, precision, and ease of installation. Their outer or inner rings are split into two halves; after the rollers and cage are inserted, the halves can be quickly secured together, making installation straightforward.

II. Common Applications of the CRBH Series Crossed Roller Bearings

1. Industrial robot

Bearings are one of the critical components in industrial robots. The bearings used in robot joints, rotating assemblies, and chassis must meet specific requirements, such as high rotational positioning accuracy, thin‑walled designs, and the ability to withstand combined loads in axial, overturning, and radial directions.

2. Medical devices

Selecting the appropriate bearings is of great importance for medical devices, and the rapid advancement of the medical industry has driven increasingly stringent requirements for bearing performance. Medical devices demand a wide range of bearing characteristics, including material safety, compliance with medical‑grade lubricant standards, corrosion resistance, and long service life.

3. Machine tool

The spindle, the main drive shaft, and the ball screw of a machine tool are three components that require bearings. Typically, the selected bearings need only meet the requirements for strength and service life, and can be used as long as their rotational speed does not exceed the specified maximum allowable speed.

4. Construction Machinery

Because construction machinery is often exposed to harsh environmental conditions, its bearings must meet stringent requirements for robustness and durability; for example, bearings capable of handling light loads and high-speed rotation are suitable for such applications.

Product Specifications

 

CRBH Series Crossed Roller Bearing Model Parameters
Model number	Size				Basic dynamic load rating	Basic rated static load	Weight
	Inner diameter	Outer diameter	Height	rmin	Radial (kN)
	d	D	B, B1		C	Co	Kilogram
CRBH 2008 A	20	36	8	0.3	2 910	2 430	0.04
CRBH 2508 A	25	41	8	0.3	3 120	2 810	0.05
CRBH 3010 A	30	55	10	0.3	7 600	8 370	0.12
CRBH 3510 A	35	60	10	0.3	7 900	9 130	0.13
CRBH 4010 A	40	65	10	0.3	8 610	10 600	0.15
CRBH 4510 A	45	70	10	0.3	8 860	11 300	0.16
CRBH 5013 A	50	80	13	0.6	17 300	20 900	0.29
CRBH 6013 A	60	90	13	0.6	18 800	24 300	0.33
CRBH 7013 A	70	100	13	0.6	20 100	27 700	0.38
CRBH 8016 A	80	120	16	0.6	32 100	43 400	0.74
CRBH 9016 A	90	130	16	0.6	33 100	46 800	0.81
CRBH 10020 A	100	150	20	0.6	50 900	72 200	1.45
CRBH 11020 A	110	160	20	0.6	52 400	77 400	1.56
CRBH 12025 A	120	180	25	1	73 400	108 000	2.62
CRBH 13025 A	130	190	25	1	75 900	115 000	2.82
CRBH 14025 A	140	200	25	1	81 900	130 000	2.96
CRBH 15025 A	150	210	25	1	84 300	138 000	3.16
CRBH 20025 A	200	260	25	1	92 300	169 000	4
CRBH 25025 A	250	310	25	1.5	102 000	207 000	4.97