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- Worm Gear Screw Jack
Worm Gear Screw Jack
Worm Gear Screw Jack
Nook Industries, established in 1969, is a global supplier of linear motion products, focusing on ball screws and worm gear screw jacks. The company serves diverse sectors including aerospace, automotive, and medical industries.
Nook Industries caters to industries such as aerospace, automotive, electronics, military, and medical.
The company aims to merge traditional design with modern technology to deliver high-quality, value-driven products, emphasizing customer satisfaction and timely delivery at competitive prices.
Nook Industries is ISO-9001-2008 certified, adhering to aerospace and medical device quality standards, employing rigorous testing to ensure product reliability.
The document details various screw jacks, including ball screw jacks, machine screw jacks, stainless steel jacks, and metric screw jacks, each designed for specific applications with varying load capacities.
Configurations such as translating jacks, rotating jacks, and double clevis jacks are available to optimize performance and efficiency.
Advanced testing systems validate the efficiency, torque, and durability of products, defining operating limits and setting targets for product launches.
Nook Industries offers a comprehensive range of precision actuators and screw jacks, meeting stringent industry standards and customer requirements, positioning them as a leader in the linear motion product industry.
Keyed jacks prevent lift shaft rotation, increasing wear on internal threads, reducing jack life. Both machine and ball screw jacks can have anti-rotation features.
Used for precision positioning under reversible load conditions, minimizing backlash through adjustable components.
Custom jacks based on travel length, designed to handle specific load capacities, duty cycles, and input speeds.
Ball screw jacks are more efficient for long travel lengths and high duty cycles, while machine screw jacks resist backdriving and are suitable for manual operation.
Sizing involves evaluating load capacity, duty cycle, horsepower, and column strength, considering static, dynamic, and inertia loads.
Design must account for horsepower limits, arrangement efficiency, and column strength, with careful consideration of input torque and horsepower distribution.
Detailed specifications for selecting and using screw jacks, emphasizing column strength and providing charts for determining required jack size.
Critical speed excites the natural frequency of the screw, leading to resonance, recommended to limit maximum speed to 80% of calculated critical speed.
Separate guidance systems must absorb all loads other than thrust, with options like hardened ground round shafting or square profile rail.
Brake motors are recommended for safety, with horsepower requirements determining motor size.
Charts predict the theoretical life of ball screws, emphasizing the benefits of using ball screw jacks.
Examples detail specifications, analysis, and selection of jacks for different scenarios, considering configuration, column strength, speed, horsepower, and life expectancy.
Users must determine the suitability of products for specific applications, with defective products replaced but no liability assumed beyond replacement.
Detailed specifications for various models, including gear ratios, capacities, lifting screw diameters, and maximum input torque.
Selection process for components, including calculations for horsepower requirements and torque limits.
Recommendations for proper lubrication, regular maintenance, and operating within specified limits.
Detailed tables with information on gear ratios, capacities, screw diameters, and torque requirements.
Importance of column strength and the impact of screw length on performance, with recommendations for brakes to hold loads in place.
Quick reference information on model specifications, including gear ratios, capacities, and torque requirements.
Technical specifications and operational guidelines for Ball Screw Jacks and Machine Screw Jacks, including detailed data on models, capacities, and operational parameters.
Models include 75-BSJ and 100-BSJ, with specifications on gear ratios, input torque, and options like limit switches and top plates.
Construction includes alloy steel worm driving a high-strength bronze worm gear, with various models and specifications.
Users are responsible for determining product suitability, with defective products replaced but no liability assumed beyond replacement.
Specifications and guidelines for ActionJac™ Numeric Ratio Anti-backlash Machine Screw Jacks, focusing on performance characteristics and ordering configurations.
Lists various models with specific gear ratios, capacities, screw dimensions, and performance metrics.
Crucial for preventing buckling under compressive loads, with charts to determine appropriate jack size.
Various configurations affect performance and suitability for specific applications.
Reference number system for ordering machine screw jacks, detailing configurations and options.
Cautionary notes about potential self-lowering conditions and securing lifting screws.
Specifications and options for stainless steel machine screw jacks, including models and configurations.
Detailed with gear ratios, capacity, and torque requirements for each model.
Specifies the 'L' dimension for ordering, calculated as travel plus a specified constant.
Optional components like top plates and clevis ends for customization.
Advises securing lifting screws and cautions about self-lowering conditions.
Introduces metric ball screw jacks, highlighting their use in wind power applications.
Detailed specifications for Metric Ball Screw Jacks, including gear ratios and torque requirements.
Recommendations on maximum speed, input torque, and power ratings.
Includes a life expectancy chart for different models.
Discusses the ability of the lift shaft to hold compressive loads without buckling.
Explains the reference number system for ordering.
Emphasizes user responsibility for product suitability.
Specifications and guidelines for Metric Ball Screw Jacks and Metric Trapezoidal Screw Jacks.
Models include EM5-BSJ, EM10-BSJ, EM20-BSJ, with specifications on gear ratios and torque requirements.
Models include EM05-MSJ, EM1-MSJ, EM2.5-MSJ, with specifications on gear ratios and torque requirements.
Ensure product suitability for specific applications, with defective products replaced but no liability assumed beyond replacement.
Specifications and technical data for Metric Trapezoidal Screw Jacks, used in various applications including the solar industry.
Lists multiple models with detailed specifications.
Available in upright and inverted rotating configurations, with options for top plates and clevis ends.
Specifies the need to determine the 'L' dimension for ordering.
Mentions optional accessories like limit switches and motor mounts.
Constructed from high-quality, corrosion-resistant aluminum.
Widely used in the solar industry due to robust design and versatility.
Specifications are believed to be accurate, but user responsibility for product suitability is emphasized.
Specifications and guidelines for Nook Precision Actuators, focusing on cubic jacks.
Lists various models of cubic jacks with detailed mechanical properties.
Includes recommended maximum speeds, input torque calculations, and duty cycle limitations.
Discusses the importance of proper sizing to prevent buckling under compressive loads.
Provides life expectancy data for both inch and metric ball screw cubic jacks.
Includes notes on accessories, construction guidelines, and safety warnings.
Specifications and operational guidelines for cubic jacks, specifically the EM05C-MSJ and EM1C-MSJ models.
Details gear ratios, capacities, and torque requirements for these models.
Includes recommendations for securing lifting screws and ordering information.
Motor mounts, right-angle reducers, and other accessories available for customization.
Right-angle reducers can optimize motor orientation and increase torque.
Motors can be configured with brakes, with standard motors available in various configurations.
Refer to page 180 for ordering details.
Provided for various motor horsepower ratings.
Available for manual operation of jacks, not suitable for ball screw jacks.
Allow for enhanced control over acceleration, deceleration, travel rate, and positioning accuracy.
Available for use with jacks, allowing for multiple arrangements.
Used to interconnect input shafts of worm gear screw jacks.
Required to transmit power to input shaft of jacks.
Technical specifications and instructions for various Nook Industries products, including limit switches and sensors.
Used to control motorized worm gear screw jacks, providing switch contact closures to prevent over-travel.
Designed for controlling motorized worm gear screw jacks, providing switch contact closures.
Provides low-cost position sensing with high accuracy and repeatability.
Installed for precise position sensing at the input shaft.
Used for precise position display by measuring input shaft rotation.
Limit switches and sensors require proper installation and adjustment.
Outlines the designation system for extension shafts.
Designed to match motors, suitable for most industrial environments.
Facilitate installation of jacks moving through an arc during operation.
Protect lifting shafts from contamination and help retain lubricant.
Essential for efficient operation and longevity of worm gear screw jacks.
Offers specific enamel color blend and alternative colors upon request.
Proper alignment of worm gear screw jacks is crucial for service life.
Minimal maintenance required, with key checks for lubrication levels and lash.
Provides a comprehensive conversion chart for length, torque, weight/force, and speed.
Catalog excerpts
In 1969, Joseph H. Nook Jr. founded Nook Industries, Inc., intent on becoming a global supplier of Linear Motion products. Ball screws, both rolled and ground, were the cornerstone products in the early 1970’s, putting Nook Industries on the map as a successful business and a trusted company. Through the years, Nook Industries has served as a leading manufacturer of engineered products. From the first ball screws to the latest technologies, Nook Industries strives to provide customers with high quality products and engineered solutions. Companies around the world depend on the quality products...
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[gj)AfOOfC MISSION Pairing traditional and proven design with the latest technology, Nook Industries manufactures products that customers value. The expansion of product lines and the development of application specific components and engineered systems have propelled Nook Industries to the Nook Industries is committed to customer satisfaction and providing high-quality, high-value products that are delivered on time at a competitive price. MARKET SEGMENTS Factory Automation \l\IOOK PARTNERS
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QUALITY HISTORY Since 1969, Nook Industries, Inc. has relentlessly and continuously developed the capabilities and skills to deliver products of the highest quality. Knowledge of testing and design, coupled with this experience working with stringent customer requirements in aerospace, medical, energy and military applications has provided the background to be a reliable partner. INSPECTION CAPABILITY Laser Lead Measurement - Precise lead error gauging is utilized to validate processes to conform to Nook internal specifications and customer requirements. HIGH TECH QUALITY EXPERIENCE When you...
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NOOK QUALITY EVOLUTION DEVELOPED MANUFACTURING SYSTEMS QUALITY TOOLS: • • • • • • • • Design for Six Sigma manufacturing D.O.E. (Design of Experiments) APQP (Advanced Product Quality Planning) DFMEA, PFEMA FEA (Finite Element Analysis) DVP&R (Design Verification Plan & Report) Reliability Testing Process validation to 21 CFR Part 82 (Medical Device) QUALITY SYSTEMS AND ACCREDITATIONS SUPPLY CHAIN APPROVAL PROCESS STATE OF THE ART MANAGEMENT SYSTEMS TESTING Efficiency Measurement - Nook Engineering has designed test machines to measure and validate screw assembly efficiency. APQP LAUNCH PROTOCOLS...
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Nook worm gear screw jacks are used in many military applications. NOOK PRECISION ACTUATORS
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WORM GEAR SCREW JACKS nookindustries.com The specifications and data in this publication are believed to be accurate and reliable. However, it is the responsibility of the product user to determine the suitability of Nook Industries products for a specific application. While defective products will be replaced without charge if promptly returned, no liability is assumed beyond such replacement.
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JACK MODELS ActionJac™ Worm Gear Screw Jack systems are ruggedly designed and produced in standard models with load handling capacities from 1⁄4 ton to 100 tons. They may be used individually or in multiple arrangements. There are no “standard” travel lengths and each Worm Gear Screw Jack is built to specification. The jack housings are made of ductile iron and proportioned to support the rated capacity of the unit. MJ, 1⁄4 ton, and 1⁄2 ton models have aluminum housings. Each ActionJac™ Worm Gear Screw Jack incorporates an alloy steel worm which drives a high strength bronze worm gear (drive...
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STAINLESS STEEL SCREW JACKS METRIC TRAPEZOIDAL SCREW JACKS ActionJac™ Stainless Steel Machine Screw Jacks are ideal for use in demanding environments where corrosion resistance is required. All external components are manufactured from 300 Series Stainless Steel materials. These jacks use a stainless steel worm with a high strength bronze drive sleeve. Load capacities for Stainless Steel Machine Screw Jacks range from 1,300 to 23,000 pounds. For increased capacity, a 17-4PH hardened worm is available. WORM GEAR SCREW JACKS ActionJac™ Trapezoidal Screw Jacks utilize the same rugged design as ActionJac™...
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JACK CONFIGURATIONS TRANSLATING JACKS A translating jack has a lifting shaft that moves through the gear box. A nut is integrated with the worm gear such that the worm gear and nut rotate together. When the lift shaft is held to prevent rotation, the lift shaft will move linearly through the gear box to move the load. Upright Translating Ball Screw Jack Inverted Translating Ball Screw Jack This printing press application utilizes two upright translating ball screw jacks to set the proper gauge on the feed rollers. NOOK PRECISION ACTUATORS Upright Translating Machine Screw Jack Inverted Translating...
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WORM GEAR SCREW JACKS ROTATING JACKS Upright Rotating Ball Screw Jack Upright Rotating Machine Screw Jack A rotating jack has a lift shaft that moves a nut as it turns. The lift shaft is fixed to the worm gear. This causes the load, which is attached to the travel nut, to move along the lift shaft. Inverted Rotating Ball Screw Jack Inverted Rotating Machine Screw Jack In this automobile lift, the linear motion is provided by two inverted rotating ball screw jacks. ONLINE nookindustries.com The specifications and data in this publication are believed to be accurate and reliable. However, it is...
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JACK CONFIGURATIONS (continued) DOUBLE CLEVIS JACKS Double Clevis Jacks are used when it is necessary to move a load through an arc, such as tracking antennas, hinged doors or air dampers. Machine Screw and Ball Screw Jacks from 1 ton to 15 ton capacities can be supplied with double clevis mounts. One clevis is mounted on the end of the lift shaft and the other clevis is welded to a heavy duty stem cover, which is welded to the housing. Double clevis designs are available with optional accessories such as boots, motor mounts, right-angle reducers, motors, encoders and rotary limit switches. To...
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WORM GEAR SCREW JACKS The lift shaft of a translating style jack must be attached to something which prevents the lift shaft from rotating. If it is not, the lift shaft (and the load) will turn and not translate. A feature can be added to a machine screw jack to prevent lift shaft rotation. This type of jack is referred to as a “keyed jack” and is available in upright and inverted models. A keyed jack has a keyway machined along the length of the lifting screw. A matching key is fastened to the cover of the jack which will eliminate lift shaft rotation. The keyway in the Upright Keyed Ball Screw...
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