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Micro Cross-Roller Ring RAU

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For a compact and lightweight system


・Micro Cross-Roller Ring with inner diameter of 10 mm and outer diameter of 21 mm

・More compact than a conventional angular contact ball bearing 

・Spacer retainer enables smooth movement and high rotation accuracy.



Structure

In the RAU, the rollers travel on the V-shaped raceways ground into the inner and outer rings.

Alternating rollers are arrayed orthogonally so that one bearing can support loads and moments in any direction.

Also, because of the integrated structure, the RAU can be used for either inner ring or outer ring rotation.

Fig. 1 Structure of Cross Roller-Ring Model RAU


1. Compact and Rigid

The RAU is more compact and lighter weight than a double row angular contact ball bearing. It is also more rigid, even though it is made as compact as possible.

2. Light Weight


The cross-sectional area of the model RAU is 57% smaller than theCross-Roller Ring model RA, which was previously the thinnest ever. This enables further weight reduction. The line-up also includes other models

whose inner diameters are the smallest to date: 10, 15, 20, 30, and 40mm.

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SelectDownloadInquiryShaft diameterModel No.Main dimensionsShoulder dimensionsBasic load ratingMass
Inner diameter Outer diameterRoller pitch circle diameterWidthGreasing hole d0rminds(max)Dh (min)C kNC0 kNg
Download PDF 140 RAU14008 140 156 147 8 1.5 0.5 143.5 150.5 8.33 19.1 19
Download PDF 150 RAU15008 150 166 157 8 1.5 0.5 153.5 160.5 8.82 20.6 20
Download PDF 160 RAU16013 160 186 172 13 2 0.8 165 179 23.3 44.9 59
Download PDF 170 RAU17013 170 196 182 13 2 0.8 175 189 23.5 46.5 64
Download PDF 180 RAU18013 180 206 192 13 2 0.8 185 199 24.5 49.8 68
Download PDF 190 RAU19013 190 216 202 13 2 0.8 195 209 24.9 51.5 69
Download PDF 200 RAU20013 200 226 212 13 2 0.8 205 219 25.9 54.7 71
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