Luoyang  MC Bearing Produce Kinds of Slewing Bearing, Cross Roller Bearing.

Crossed roller bearings play a crucial role in machinery by providing support and reducing friction. For applications that require high speed and need to withstand radial, axial, and moment loads, crossed roller bearings are generally preferred.

The inner and outer rings of crossed roller bearings are minimized in size, especially in ultra-thin structures, making them close to the limits of small dimensions. They also possess high rigidity. As a result, they are widely used in industrial robot joints or rotating parts, rotating worktables in machining centers, rotating parts of mechanical arms, precision rotary worktables, medical instruments, measuring instruments, IC manufacturing devices, and other applications.

The rolling elements in crossed roller bearings are typically arranged in a crossed arrangement using cylindrical or tapered rollers in a single raceway groove. The rollers are separated by brass retainers or engineering plastic isolating blocks, which provide high rotational accuracy, large load-bearing capacity, small overall dimensions, high rotational speed and rigidity. Crossed roller bearings have a wide range of applications and are suitable for industrial robot joints, CNC rotary tables, DD motors, medical equipment, and other fields.

2. Characteristics and Advantages of Crossed Roller Bearings

1. Crossed roller bearings have a sturdy and inseparable inner and outer ring structure that can achieve high rigidity and high precision without being influenced by the surrounding structure. The bearings are suitable for medium to high speeds, and they have isolating blocks between the cylindrical rollers to provide smooth rotation.

2. Crossed roller bearings have the characteristics of high rigidity, accuracy, and easy installation. The mounting holes allow them to be quickly fixed to components. This type of bearing also has isolating blocks between the cylindrical rollers.

3. Crossed roller bearings have a smaller outer diameter and narrower width. They can be selected when high performance and minimal space occupation are required.

Since crossed roller bearings are divided into two parts, the outer or inner ring is fixed together after installing the rollers and retainers. As a result, they are very easy to install. In addition, crossed roller bearings have high precision, with accuracy reaching P4/P2 levels, and smaller dimensions, making the host machine more space-saving.

3. Classification of Crossed Roller Bearings

– SX Type (Inner ring integral, outer ring separable, ultra-thin): Under the same shaft diameter, this type has smaller cross-sectional dimensions compared to the HRB type. Due to its ultra-thin design, it does not have mounting holes on the outer or inner ring, and flanges and support seats are needed for installation. It is suitable for applications requiring rotation of the inner ring.

Type: SX011814,SX011818,SX011820,SX011824,SX011828,SX011832,SX011836,SX011840,SX011848,SX011860,SX011868
,SX011860,SX0118/500

– RU Type (Inner and outer ring integral, with mounting holes): Both the outer and inner rings have mounting holes, so flanges and support seats are not required during installation. Additionally, because the outer and inner rings are both integral structures, installation has almost no impact on performance, ensuring stable rotational accuracy and torque. It is suitable for situations where both the outer and inner rings rotate.

Type:RU124G,RU148G,RU178G,RU228,RU297,RU445,RU228X,RU297X,RU445X,RU228G,RU297G,RU445G

– RAU Type (Inner and outer ring integral, ultra-thin): This type is a compact version of the HRB type, with reduced thickness of the inner and outer rings. It is most suitable for lightweight and compact designs, such as robot and mechanical arm rotating parts. It can be used in situations requiring rotation of both the outer and inner rings.

– RBH Type (Inner and outer ring integral, ultra-thin): It features an ultra-thin design with no mounting holes on the outer or inner ring, so flanges and support seats are required for installation. Due to its integral structure for both the outer and inner rings, installation has no impact on performance, ensuring stable rotational accuracy and torque. It is suitable for situations where both the outer and inner rings rotate, but with requirements for small dimensions.

– RB Type (Inner ring integral, outer ring separable): This type is the basic type of crossed roller bearings. The outer ring is divided into two pieces, while the inner ring is an integral structure. It is most suitable for applications that require high precision in the rotation of the inner ring.

RB4010,RB4510,RB5013,RB6013,RB7013,RB8016,RB9016,RB10016,RB10020,RB11012,RB11015,RB11020,
RB12016,RB12025,RB13015,RB13025,RB14016,RB14025,RB15013,RB15025,RB15030,RB16025,RB17020,RB18025,
RB19025,RB20025,RB20030,RB20035,RB22025,RB24025,RB25025,RB25030,RB25040,RB30025,RB30035,RB30040,
RB35020,RB40035,RB40040,RB45025,RB50025,RB50040,RB50050,RB60040,RB70045,RB80070,RB90070,RB1000110
,RB1250110