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RB Series Cross Roller Bearings

RB bearings are a common starting point for compact rotary axes that need combined radial, axial and moment-load support. Compare the listed models by dimensions and installation requirements. The reference RB arrangement uses a split outer ring and is commonly selected for inner-ring rotation.View RB series table · Request a drawing or quote

RB selection checklist

RB drawing review
Check before selectionInformation to provide
1Shaft and housing envelope and retaining flanges
2Combined load case, moment arm and duty cycle
3Clearance, preload and runout under the intended mounting condition

For a reference design with a split inner ring and outer-ring rotation, compare RE. For integrated rings with fixing holes, compare RU. Compare related series.

Published RB model pages

RB2008 · RB2508 · RB3010 · RB4010 · RB5013 · RB6013 · RB7013 · RB8016 · RB10016 · RB3510 · RB12025 · RB15025 · RB15013

Drawing and reference information

The table includes RB2008 with a 36 mm outside diameter. LRB, LRBS and LRBH designations should be treated as separate table families until their complete drawings are matched.

Technical reference: THK Cross-Roller Ring type overview. Brand names identify reference families only. Supplied LYDL dimensions, tolerances, load ratings and acceptance requirements are defined by the drawing and quotation agreed for the order.

Request a drawing or quote with the complete model, quantity, loads, speed, duty cycle and mounting requirements.