THK RA and RAV Series Thin Cross Roller Ring

The THK RA and RAV Series Thin Cross Roller Ring is a compact cross roller bearing designed for space-saving rotary mechanisms where a thin, lightweight design is important. The RA Series uses a spacer retainer to provide low friction and stable rotational torque, while the RAV Series uses a full-roller design for higher load capacity in lower-speed rotary applications.

The RA Series offers basic dynamic radial load ratings from 5.10 to 25.8 kN, while the RAV Series provides higher load capacity for applications where increased load performance is required. The thin construction makes the series suitable for compact swivel mechanisms and other space-conscious rotary applications.

The RA Series uses a separable outer ring and THK specifies the model for inner-ring rotation when a certain level of accuracy is required. The available RA models cover inner diameters from 50 to 200 mm, with basic static radial load ratings from 7.19 to 54.7 kN depending on the model.