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The bellows-type rotary linear feedthrough and the bellows-type push-pull linear feedthrough use film bearings on the vacuum side with ultra-high vacuum lubricants (Krytox), while the atmospheric side uses bearings with high-temperature Krytox. 【Features】 - Usable in ultra-high vacuum environments - Compatible with DC step motors, high-torque DC step motors, reversible AC motors, etc. (optional) The bellows-type rotary feedthrough uses dry film bearings with tungsten disulfide on the vacuum side and bearings with high-temperature Krytox on the atmospheric side. 【Features】 - Usable in ultra-high vacuum environments - High torque support (up to 1.8 N-m) - Compatible with DC step motors, high-torque DC step motors, reversible AC motors, etc. (optional) Additionally, wobble stick feedthroughs are also available. For more details, please download the catalog or contact us.