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XV Crossed Roller Bearings

XV Crossed Roller Bearings with integrated outer ring and separable inner ring
XV Crossed Roller Bearings feature a separable inner ring and an integrated outer ring with mounting holes, allowing for easy installation and stable performance. The built-in dustproof metal ring enhances durability, making these bearings perfect for robotic, aerospace, and precision rotary applications.
Total 8 Results
Part Number
Di
Da
DB
DS
Ha
Hi
Number Of Holes Per Ring(nϑr)
TS
Bore Dia
Outer Dia
Width
Weight
XV30
425 mm
415 mm
46 mm
8 mm
14 mm
15 mm
12
46 mm
30 mm
75 mm
14 mm
0.337 Kg
XV50
645 mm
635 mm
56 mm
10 mm
16 mm
17 mm
12
54 mm
50 mm
100 mm
16 mm
0.699 Kg
XV60
745 mm
735 mm
56 mm
10 mm
16 mm
17 mm
16
54 mm
60 mm
110 mm
16 mm
0.687 Kg
XV70
845 mm
835 mm
56 mm
10 mm
16 mm
17 mm
16
54 mm
70 mm
120 mm
16 mm
0.783 Kg
XV80
955 mm
945 mm
66 mm
11 mm
18 mm
19 mm
16
64 mm
80 mm
135 mm
18 mm
1.078 Kg
XV90
1055 mm
1045 mm
66 mm
11 mm
18 mm
19 mm
16
64 mm
90 mm
145 mm
18 mm
1.197 Kg
XV100
1175 mm
1165 mm
9 mm
15 mm
22 mm
23 mm
16
85 mm
100 mm
170 mm
22 mm
2.102 Kg
XV110
1275 mm
1265 mm
9 mm
15 mm
22 mm
23 mm
16
85 mm
110 mm
180 mm
22 mm
2.283 Kg
High-precision XV Crossed Roller Bearings with integrated outer ring for stable rotation

Precision Design for Outer Ring Rotation

XV Crossed Roller Bearings feature a one-piece outer ring and separable inner ring, making them ideal for applications where the outer ring must rotate with high precision. This structure greatly enhances rotational accuracy by minimizing deformation and misalignment during installation. Their optimized internal layout, with rollers placed in a crossed arrangement, allows the bearing to support radial, axial, and moment loads simultaneously.

Compared to other crossed cylindrical roller bearings, XV types offer a stronger outer ring design that ensures stability even under fluctuating loads. This makes them an excellent choice for rotary tables, aerospace equipment, and robotic joints, where accuracy, stiffness, and consistent motion are critical.

Enhanced Durability with Dustproof Sealing

To perform reliably in dusty or particle-rich environments, XV Crossed Roller Bearings are equipped with a dustproof fixing metal ring between the inner and outer rings. This built-in protection helps prevent foreign matter from entering the bearing, reducing wear and maintaining long-term performance without the need for external sealing devices.

This feature makes XV bearings especially suitable for robotics, automated systems, and precision instruments, where contamination could easily cause performance degradation. By simplifying the sealing and enhancing protection, they improve both reliability and service life in demanding environments.

XV Bearings with mounting holes for easy and accurate installation

Simplified Mounting with Integrated Design

The XV series is engineered for ease of use. With mounting holes on both inner and outer rings, these bearings eliminate the need for flanges or extra support components, allowing direct installation into machinery. This not only simplifies mechanical design but also saves time during assembly and reduces system complexity.

Thanks to their compact and high-rigidity design, XV bearings are a top choice in robotic arms, indexing tables, and thin section applications. The separable inner ring structure allows for easier alignment during mounting, helping engineers achieve both precision and efficiency in assembly.

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FREQUENTLY ASKED QUESTIONS

What are the main differences between XV Crossed Roller Bearings and other types like the RU or RB series?

The primary distinction lies in their structural configuration and intended application. XV Crossed Roller Bearings are specifically designed for applications where the outer ring rotates, featuring a solid one-piece outer ring and a separable two-piece inner ring. In contrast, the RB series, which is a common type of crossed cylindrical roller bearings, is designed for inner ring rotation and has a solid inner ring with a separable outer ring. The RU series has a one-piece design for both rings, which offers high rigidity but can be less flexible for certain mounting situations. The unique design of the XV series simplifies the mounting process for outer ring rotation and provides exceptional stability.

What is the benefit of the separable inner ring in XV Crossed Roller Bearings?

The separable inner ring of XV Crossed Roller Bearings offers a significant advantage in terms of ease of mounting. Because the inner ring is split, it can be easily installed around a shaft or spindle, and the bearing's outer ring can then be secured to the housing. This simplifies the assembly process, especially in complex mechanisms, reducing the risk of damage during installation. It also allows for easier maintenance and replacement, which is a key consideration for high precision bearings used in demanding environments like robot bearings and aerospace bearings.

How do XV Crossed Roller Bearings contribute to high precision in machinery?

XV Crossed Roller Bearings achieve high precision through their specific design. The rollers are arranged in a crisscross pattern at a 90-degree angle, allowing the bearing to handle significant radial, axial, and moment loads simultaneously within a compact envelope. This rigid, space-saving design minimizes deformation under load, maintaining consistent rotational accuracy. The integrated mounting holes and one-piece outer ring further enhance rigidity and prevent performance degradation from improper installation, making them ideal for applications that demand exceptional accuracy, such as precision rotary table bearings and robotic joints.

Can XV Crossed Roller Bearings be used in general-purpose machinery, or are they only for specialized applications?

While XV Crossed Roller Bearings are highly specialized and excel in applications requiring exceptional precision and rigidity, their robust design makes them suitable for a wide range of uses. They are particularly well-suited for any machinery where a rotating part needs to be accurately controlled, such as in CNC machine tools, medical equipment, and radar systems. However, their unique features and high cost might be overkill for simple, low-precision applications. It is essential to match the bearing type to the specific performance requirements of the machine to achieve the best balance of cost and performance.
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