Versatile: takes 2 or 3 legs. Comfort: self-gripping legs by return spring. The puller stays in rolling position even when not in tension. Safety: legs locked in position on the bearing using a knob. No risk for the puller to escape from the bearing. The screw is supplied with an extension: U.320-14. Adaptable puller accessory: hydraulic jack UWG.320. Using the jack requires the screw UWG.320-H01 and hydraulic pump UWP.10M. Mounting with 3 legs only with the hydraulic jack.