What are the key factors to consider when selecting an XRU series bearing?

When choosing an XRU series bearing, consider the load type and size, rotational accuracy requirements, installation space constraints, and operating environment. Evaluate the radial, axial, and overturning moment loads, select the appropriate accuracy grade, and consider the equipment structure for size selection. Operating temperature, lubrication method, and dust seals are also critical factors to ensure the bearing performs optimally in its application.

XRU Crossed Roller Bearings

XRU Series - High Precision and Compact Design

The XRU series crossed roller bearings are engineered to deliver exceptional performance in precision and load capacity. These bearings are designed for applications demanding high rigidity and accuracy, such as industrial robots, precision turntables, and medical equipment. With a compact design, they save space and simplify mechanical design.

Load Type

Radial, Axial, and Overturning Moments

Rotational Accuracy

High Precision Grade

Material

Steel

Finish

Precision Ground

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Available Models & Specifications

Click on any part number to view detailed CAD drawings and download PDF specifications.

Part Number	Bore (d)	Outer (D)	Width (B)
XRU 1008	10 mm	52 mm	8 mm
XRU 11528	115 mm	240 mm	28 mm
XRU 11528G	115 mm	240 mm	28 mm
XRU 11528X	115 mm	240 mm	28 mm
XRU 16035	160 mm	295 mm	35 mm

Why Choose XRU Series for Precision and Rigidity?

The XRU series crossed roller bearings are recognized for their unique design, which allows a single bearing to handle radial, axial, and overturning moments, thus streamlining mechanical design and conserving space. This precision bearing features rollers arranged crosswise on a V-shaped raceway, separated by spacers, enhancing load distribution and mechanical integrity.

These bearings are integral in industries like robotics, where high-precision motion is crucial, and in semiconductor manufacturing, where the smallest deviations can affect the quality of production. The compact and space-saving design of the XRU series is particularly beneficial for equipment that requires miniaturization and lightweighting.

Compared to traditional bearing combinations, the XRU series offers higher rotational accuracy and rigidity, coupled with ease of installation. This makes them not only a technical choice but also an economic one, reducing installation time and labor costs.

High load capacity due to the V-shaped raceway and cross-roller design.
Extremely low friction for smooth operation and extended equipment life.
Customizable solutions to meet specific application needs.

Technical Specifications and Benefits

STEP 1

High Precision and Rigidity

The cross-arranged rollers in XRU series bearings provide high rotational accuracy and rigidity, essential for stable and precise motion in applications like CNC machine tools.

STEP 2

Compact and Space-Saving Design

With small inner and outer ring dimensions, XRU series bearings integrate multiple load-bearing capabilities into a compact design, crucial for miniaturized equipment.

STEP 3

Easy Installation and Reduced Costs

The ability to support various loads with a single bearing eliminates the need for complex combinations, simplifying design and significantly reducing installation time and costs.

STEP 4

Low Friction and High Load Capacity

The cross-roller design ensures low friction during operation, leading to smooth rotation and extended equipment life, while the V-shaped raceway offers a larger contact area for heavy load support.