Full Catalog
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JACKS, ACTUATORS AND SYSTEMS Machine Screw Jacks Ball Screw Jacks ComDRIVE® Actuators Metric Screw Jacks Electric Cylinders Integrated Actuators Linear Actuators 2011 Stainless Steel Screw Jacks Bevel Gear Jacks Bevel Ball Actuators Protective Boots Limit Switches System Accessories

Free JAX V2 Software ® Your complete source for jack selection and engineering data You can get the latest version of Joyce's industry-leading JAX® linear motion design software just by asking. Windows®-based JAX® V2 program includes all the information you need to specify the right components for your applications – and will even select the right jack for you. The CD also includes 2D CAD drawings, application solutions and an electronic version of the Joyce catalog. JAX® V2 features include: • Custom System Configurations – Design your own system, and generate a bill of material...

TABLE OF CONTENTS Engineering Information Wormgear Style cutaway view. . . . . . . . . . . . . . . . . . . . . . . . . 4 Bevel Gear Style cutaway view. . . . . . . . . . . . . . . . . . . . . . . . 5 Quick Reference Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Options Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Selection Guide Worksheets. . . . . . . . . . . . . . . . . . . . . . . . . . 8 Product Selection Factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Column Load. . . . . . . . . . . . . . . . . . . . . . . . ....

WORMGEAR STYLE JACK Upright translating style shown Load Pad End Condition Jack must be attached to load and rotation must be restrained. Keyed machine screw jacks are available (WJ 1000 and larger). Sleeve Cap Threaded onto sleeve and secured with set screws. See note below for material. Lifting Screw Standard end conditions, Plain (T1), Load Pad (T2), Threaded (T3) and Male Clevis (T4). Thrust Bearing Sleeve (housing) Upper (shown) and lower (not shown) permit jack to bear load in both directions. Material varies based on size of jack. See note below. Wormgear Made from aluminum bronze...

BEVEL GEAR STYLE JACK Upright translating style shown Threaded End Condition Standard end conditions, Plain (T1), Load Pad (T2), Threaded (T3), and Male Clevis (T4). Sleeve Cap Made from ductile iron. Lifting Screw Upper Thrust Bearing Grease Fitting Upper Seal Fill Vent Sleeve (housing) Spiral Bevel Gear Made from ductile iron. One per jack assembly. Carrier Housing Cover Plate Made from ductile iron. Made from ductile iron. Up to two required depending on the number of input shafts. Input Shaft Up to three per jack depending on system requirements. Fill and Drain Port Located in sleeve...

QUICK REFERENCE GUIDE Product Prefix Typical Input Shaft Speeds In-line Right Predictable Inherently Life Self-Locking Corrosion Enclosed Options Keyed Limit Direct Anti- for Non- Switch Drive backlash rotation Motor or Limited Jacks with single lead screws (except WJ500) are self-locking. Double lead screw jacks may lower under load. ECA jacks that are < 30% efficient are self-locking. Joyce/Dayton offers a variety of finishes and modifications that resist corrosion, (p. 179) Oversized ball bearings can be added to limit the end play between the ball screw and ball nut. Custom products are...

Options Overview for Jacks and Actuators Protective Boots (pp. 170-172) • Protection from dirt and dust • Guard against moisture • Guard against corrosive contaminants • Neoprene coated nylon (std) • Special materials available Motor Mounts (p. 185) • Available on 2-ton to 20-ton wormgear jacks and electric cylinders • Included on integrated actuators • NEMA motor mounts • Special mounts available Anti-backlash Devices (pp. 180-181) • Available for machine screw jacks • Available for metric (trapezoidal) jacks • Limits lifting screw movement Lubrication • Standard operating (40°F to 220°F)...

SELECTION GUIDE WORKSHEET □ Machine Screw Jacks □ Ball Screw Jacks □ Stainless Steel Jacks □ Bevel Gear Jacks ■ Refer to page 6 for a Quick Reference Guide or contact Joyce/Dayton. □ Machine Screw ComDRIVEs® □ Electric Cylinders □ Ball Screw ComDRIVEs® □ Linear Actuators □ Metric Screw Jacks □ Integrated Actuators □ Bevel Ball Actuators System Considerations Jack mounting Screw orientation Travel Speed_ Is static side load present? How will jacks be operated? . Total system load. □ Both Tension & Compression Environmental and Other Considerations Temperature Range _ Describe any vibration...

SELECTION GUIDE WORKSHEET System Information Are Jacks: □ Mechanically Synchronized □ Electrically Synchronized □ Independently Operated System Environment What aspect of operation □ Both Position and Travel Speed Motor Operation □ Multiple Speed (preset) Primary Control Requirement □ More than Four Enclosure Requirement Brake required DYES DNO Brake Voltage_ Brake Wiring □ Internal □ External (for variable frequency drives) Motor Enclosure □ Totally Enclosed TEFC □ Soft Start Operation Control Options Other Considerations Please list in detail any other specific features desired: Complete...

Engineering Information Product Selection – Critical Factors 1. Maximum Input RPM – Limited to 1750 RPM for jacks and actuators. Maximum input RPM may be slower than 1750 RPM depending on the dynamic load and other factors specific to the application. Refer to the JAX® selection software and information located in the product section for more detail or contact Joyce/Dayton and talk with an application engineer. 9. Calculated Life for Ball Screws – The calculated life for ball screws is based on the ball nut life. This information is available for all ball screw jacks, ball screw ComDRIVEs®,...

Engineering Information Column Load – Critical Factors Column Loading Capacity The type of load on a jack, and the way the jack is mounted, affects its load bearing capacity. There are two types of possible jack loads, tension and compression. A jack is under tension when its load pulls the screw away from the jack. It is under compression when the load pushes the lifting screw toward the jack (see diagrams). A jack can be under tension or compression regardless of jack positioning (i.e., vertical, horizontal, upright, or inverted). When tension loaded, the jack retains full rated capacity....