RE Series

RE Series Crossed Roller Bearings (Ultra-Thin Type)

The RE series is a crossed roller bearing design characterized by a solid inner ring and a split outer ring, featuring mounting holes on both rings for direct bolted attachment to the machine structure. This configuration offers a practical mounting solution for applications where secure, straightforward installation is essential without the need for additional adaptor plates or complex fixturing.

Typical Applications

Industrial robotics and automation equipment
Precision rotary tables and indexing systems
CNC machining centers and machine tools
Medical imaging and diagnostic equipment
Semiconductor manufacturing and inspection devices
Aerospace and defense positioning systems

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Inquiry	Type	Brand	Shaft Diameter	Inner Diameter d	Outer Diameter D	Roller Pitch Circle Diameter dp	Width B B1	Greasing Hole		Chamfer rmin	Shoulder Dimensions		Basicloadrating(radial)		Mass
Inquiry	Type	Brand	Shaft Diameter	Inner Diameter d	Outer Diameter D	Roller Pitch Circle Diameter dp	Width B B1	a	b	Chamfer rmin	ds	Dh	C kN	C0 kN	Mass

RE series bearings employ cylindrical rollers arranged in a crossed configuration, with adjacent rollers oriented at 90° angles to each other within precision-ground V-shaped raceways. This arrangement provides line contact between the rollers and raceways, enabling the bearing to simultaneously support radial loads, axial loads in both directions, and tilting moments within a single, compact unit.

The solid inner ring and split outer ring design simplifies assembly while maintaining structural integrity. Both rings are equipped with mounting holes, allowing for direct bolted attachment to the machine structure. This feature eliminates the need for separate mounting adaptors and simplifies the overall installation process. The bearings are typically fitted with spacer retainers between the rollers to prevent metal-to-metal contact and ensure smooth, consistent rotation.