Jacks

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JACKS Group NEETER DRIVE S P I R A L B E V E L G E A R B O X E S FORTUNE? E N G I N E E R I N G L T D PRECISION A C T U A T I O N S Y S T E M S POWER JACKS Youngs Lifting company profile companyprofile Company Profile

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Options JWH JWB JWM Technical Notes Linipower Jack Linipower Jack Selecting Your Linipower Jack �E Technical Notes Selecting Your Linipower Jack Selecting Process Example Technical Notes Screw

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now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com E N G I N E E R I N G O V E R V I E W ? J A C K D E S I G N S Joyce Translating Design Jacks A driven worm acts on an internal worm gear, which in turn drives a lifting screw to extend or retract

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by a mis-alignment during mounting of screwjack, i.e. leadscrew doesn?t work aligned. - Static side load: leadscrew tends to be pushed aside from its natural axis, limiting screwjacks max rating. Diagrams (page 20) show max admitted side loads according to leadscrew lenght

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jacks Symbols used: F = Force (N) (1 tonne = 10 000 N) v = Lifting speed (mm/min) s = Pitch of lifting screw (mm) n = Required input speed (rpm) i = Ratio of worm gear set ED = Intermittence factor (%) Pd