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Product parameters

Cross roller bearing is a compact structure bearing with rollers arranged orthogonally between the inner and outer rings. The structure of roller orthogonal arrangement is used as a bearing to support the rotation axis of the robot and achieve optimal performance. It has the characteristics of compact structure, high rigidity, high precision, and easy installation.

The variety of cross roller bearing products is very rich and complete, with a wide range of sizes covered. The standard outer ring splitting RB series and CRB full roller series, as well as the inner ring splitting RE series, are suitable for machine tools, large robots, and general industrial equipment; Thin RA type with small cross-sectional size, suitable for electronic and electrical equipment automation devices such as small and medium-sized robot joints and semiconductors; In order to achieve higher rigidity and precision, the CRBH type with integrated outer and inner rings has been developed based on the first two types of products; Ultra thin CRBT type, specially developed for precision small devices; The RU type with high rigidity and mounting holes can simplify the structure of the bearing seat.

Model Basic Dimensions Basic Dynamic Load Rating Limiting Speed (r/min)
Bore Diameter Outer Diameter Width
[mm] [mm] [mm] (kN) 【r/min】
CRBH308 30 46 8 CRBH308UU 0.3
CRBH258 25 41 8 CRBH258UU 0.3
CRBH208 20 36 8 CRBH208UU 0.3
CRBH158 15 31 8 CRBH158UU 0.3
CRBH108 10 26 8 CRBH108UU 0.3
RU35045X 350 540 45 RU35045XUU 2.5
RU35045G 350 540 45 RU35045GUU 2.5
RU35045 350 540 45 RU35045UU 2.5
RU21040X 210 380 40 RU21040XUU 2.5
RU21040G 210 380 40 RU21040GUU 2.5
RU21040 210 380 40 RU21040UU 2.5
RU16035X 160 295 35 RU16035XUU 2
RU16035G 160 295 35 RU16035GUU 2
RU16035 160 295 35 RU16035UU 2
RU11528X 115 240 28 RU11528XUU 1.5
RU11528G 115 240 28 RU11528GUU 1.5
RU11528 115 240 28 RU11528UU 1.5
RU9025X 90 210 25 RU9025XUU 1.5
RU9025G 90 210 25 RU9025GUU 1.5
RU9025 90 210 25 RU9025UU 1.5
RU8022X 80 165 22 RU8022XUU 0.6
RU8022G 80 165 22 RU8022GUU 0.6
RU8022 80 165 22 RU8022UU 0.6
RU5515X 55 120 15 RU5515XUU 0.6
RU405X 40 73 5 RU405XUU 0.15

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