Internal Expander MECHANICAL PULLERS BETEX 62 Internal expander puller up to a bore of ø150 mm This special expander system has been developed to facilitate rapid and effective dismantling under difficult conditions, e.g. in 'blind holes'. The multiple adjustable jaws (up to 6) ensure the correct grip from behind the bearing, bushing etc. Bearings, bushings, sealings etc. are extracted effortlessly.