Crossed Roller Bearings YRT Series-Luoyang Rockewell Precision Bearing Co.,Ltd

Crossed Roller Bearings YRT Series

The YRT series of crossed roller bearings is a type of rotary table bearing, belonging to the combined bearing category. It consists of a thrust / centripetal seat ring, a thrust / centripetal shaft ring, a thrust washer, two needle roller cage assemblies, and a set of centripetal cylindrical rollers. The seat ring and shaft ring are evenly distributed with screw holes for installation.

Mail us

Type	Main dimensions	Rated load	Rated speed
YRT1200	1200	1490	164	-	-	-
YRT1030	1030	1300	145	-	-	-
YRT950	950	1200	132	-	-	-
YRT850	850	1095	124	-	-	-
YRT650	650	870	122	-	-	-
YRT580	580	750	90	-	-	-
YRT460	460	600	70	-	-	-
YRT395	395	525	65	-	-	-
YRT325	325	450	60	-	-	-
YRT260	260	385	55	-	-	-
YRT200	200	300	45	-	-	-
YRT180	180	280	43	-	-	-
YRT150	150	240	40	-	-	-
YRT120	120	210	40	-	-	-
YRT100	100	185	38	-	-	-
YRT80	80	146	35	-	-	-
YRT50	50	126	30	-	-	-

Type

Main dimensions

Rated load

Rated speed

Dynamics

Static

Speed limit

Mail

d[mm]

D[mm]

B[mm]

C[kN]

C₀[kN]

[r/min]

YRT1200

YRT1030

YRT950

YRT850

YRT650

YRT580

YRT460

YRT395

YRT325

YRT260

YRT200

YRT180

YRT150

YRT120

YRT100

YRT80

YRT50

Dentail

Structural characteristics: The internal structure adopts rollers arranged cross - wise at a 90 ° mutual perpendicularity. Spacer retainers or spacer blocks are installed between the rollers to prevent the rollers from influencing each other when they are tilted, avoiding the square contact phenomenon or locking phenomenon of the rollers. At the same time, the inner and outer rings are of a divided structure, and the gap can be adjusted. Even if a pre - load is applied, high - precision rotational movement can be obtained.
Performance advantages: It has high axial and radial load - bearing capacities and can withstand bidirectional axial loads, radial loads, and overturning moments. It has high tilting stiffness and extremely high accuracy, with excellent rotational accuracy. In addition, the installation and operation of the YRT series bearings are simple. Due to the split - design of the inner and outer rings, after installing the rollers and cages, the two parts of the outer ring or inner ring are fixed in place, which makes the installation operation very simple.

Application

The bearings can be used in the following industries

Industrial Robots: Used in the joint parts or rotating components of robots, it can enable the robots to move flexibly and achieve high-precision positioning, ensuring that the robots can reach a high repeat positioning accuracy and smooth movement during task execution.
Machining Centers: Installed on the rotary tables of machining centers, it can withstand various loads generated during the machining process, ensuring the high-precision rotation of the rotary table, thereby improving the machining accuracy and efficiency.
Manipulators: Suitable for the rotating components of manipulators, it enables the manipulators to accurately control the position and posture when grasping and placing objects, improving the accuracy and reliability of the operation.
Precision Rotary Tables: Provide high-precision rotational support for precision rotary tables, meeting the strict requirements for angular accuracy and stability in the fields of optics, electronics, etc. For example, in the precision rotary tables of optical measuring instruments, it can ensure the accuracy of the measurement.
Medical Devices: Applied in medical devices, such as the rotating components of medical imaging equipment (such as CT, MRI, etc.) and the joint parts of surgical robots, it helps to achieve high-precision movement and positioning of the equipment, providing precise support for medical diagnosis and treatment.
Measuring Instruments: Can be used for the rotary tables or rotating components of measuring instruments, ensuring high-precision positioning and angular control during the measurement process, and improving the measurement accuracy and reliability. For example, in the rotary table part of a coordinate measuring machine.
Integrated Circuit Manufacturing Equipment: During the integrated circuit manufacturing process, it is used for the precision rotating components of equipment such as lithography machines and etching machines, meeting the requirements of the equipment for high-precision positioning and motion control, and helping to improve the precision and quality of chip manufacturing.
CNC Machine Tools: As the core components of CNC machine tools, it is used in parts such as CNC rotary tables, dividing heads, milling cutter heads, and chucks. It can bear axial and radial loads, as well as overturning moments, ensuring the high precision and stability of the machine tool during the machining process.
Military Radars: Provide support for the antenna rotation mechanism of military radars, enabling them to accurately track targets and ensuring the high-precision scanning and positioning functions of the radar system.
Aerospace: Applied in the transmission systems, attitude control systems of aircraft, and aero engines, etc. It can maintain high precision and reliability under high loads, high speeds, and complex working environments, meeting the strict requirements of the aerospace field for components.