nook jack screws. Video instructions for aligning a limit switch used on Nook electric cylinder and screw jack products. nook jack screws

 
Video instructions for aligning a limit switch used on Nook electric cylinder and screw jack productsnook jack screws  Typically used as actuators, they run at higher speeds than Acme screw jacks

Ground worm gears for better fit. Specs Configure/Quote. Typically used as actuators, they run at higher speeds than Acme screw jacks. A nut is integrated with the worm gear such that the worm gear and nut rotate together. The keyway in the screw causes greater than normal wear on the internal drive sleeve threads, somewhat reducing jack life. 12. Column Strength is the ability of the lift shaft to hold compressive loads without buckling. 1 Pages. The lift shaft is fixed to the worm gear. Worm Gear Screw Jack systems are ruggedly designed and produced in standard models with load handling capacities from 1/4 ton to 100 tons with no "standard" tra. may be used individually or in multiple arrangements. 2. When a Ball Screw Jack is motorized, less horsepower is required than an equivalent size Machine Screw Jack. A rotating jack has a lift shaft that moves a nut as it turns. In both cases, the rotation of the worm screw acting on the lead screw via the worm wheel converts rotation in to linear motion. ISC Companies and Adams-ISC can supply the Nook products listed on this page and others found on nookindustries. When annealing is applied to the end of the ball screw for. Motors with internally and externally wired brake motors are available. Inverted Translating Steel Machine Screw Jacks - 2/3 Ton to 12 Ton. Open the catalog to page 1. 15. 4142 alloy steel link shafts (more tensile strength and hardness). Screw Jack Technology ActionJac™ screw jack systems are ruggedly designed and produced in standard models with load-handling capacities from 1⁄4 to 100 tons. If not done properly, internal bearings can become misplace out of the bearing circuit which will reduce life and increase ware, and possible locking of the ball nut on the ball screw. Learn about Nook's precision screw products, including ball, acme, and roller screws, in this comprehensive catalog. Gear Screw Jack. E-900 will provide a lasting film for wear protection and resistance to corrosion. NRS NOOK PLANETARY ROLLER SCREWS NRS 8x2. Nook Industries manufacturers linear motion solutions including, precision ball screw, acme screw, screw jack, linear actuator, and electric cylinder products. Removable expanders have smaller jackscrews that achieve less expansion, usually 3 to. Joyce configures jacks with components such as motors, gear reducers, shafting, coupling, and motion control devices to create complete multi-jack. PowerAc™ Inch Acme screws and nuts include a centralizing (C) thread form to prevent wedging and binding. RMA Request Form. E-900 Ball Screw Lubricant may be used on both rolled and ground thread ball screws. Download the PDF for free and explore the features and specifications of each screw type. ActionJac™ LinkJac™ Line Shafting is used to interconnect the input shafts of ActionJac™ Worm Gear Screw Jacks used in a multiple arrangement. Anode jacks are able to withstand extreme environmental factors, such as high ambient temperatures in excess of 200 degrees and the close proximity of abrasive materials. 12. Standard boots are sewn from black neoprene-covered nylon fabric for oil, water and weather resistance. Video instructions for adjusting Nook Industries Machine Screw Jack Anti-backlash settings. Brake motors utilize an integral, spring actuated brake. In both cases, the rotation of the worm screw acting on the lead screw via the worm wheel converts rotation in to linear motion. Load capacities for Stainless Steel Machine Screw Jacks range from 1,300 to 23,000 pounds. Precision-rolled ball screws have long been a hallmark of Nook Industries, and the latest innovations from Nook Industries are Precision Metric Ball Screws (PMBS™). Jack Post can adjust from a 1 ft. 50. Screw Jacks - Ball Screw Jacks and Machine Screw Jacks | Nook Industries Nook Industries manufacturers linear motion solutions including, precision ball screw, acme screw, screw jack, linear actuator, and electric cylinder products. 1000. Specs Configure/Quote. Single-phase motors are 115-130 VAC, 60hz,1,725 rpm. 667. Choose from our selection of precision Acme lead screws and nuts, Acme lead screws and nuts, metric precision lead screws and nuts, and more. Skip to Content (800) 321-7800; Start Your Project; Wish List ; Login. Rolled thread screws are cost effective and are stocked for quick delivery. Machine screw jacks = 25% (75% time off) The ability of the jack to dissipate the heat that builds during operation determines duty cycle. Both External and Internal return nut styles are offered on various metric sizes. Alternatively, the flange may be drilled and tapped radially for a set screw. Translating Screw Jack. Screw Jack Definitions and Technical Data; Keyed Screw Jack; Rotating Screw Jack; Translating Screw Jack; Anti-Backlash Machine Screw Jack; Double Clevis Screw Jack; Electric Cylinder Engineering Resources; Electric Cylinder Design Considerations; Electric Cylinder Definitions and Terms; Modular Linear Actuator Applications; Screw Jack FinishesNRS High Strength Materials. These jacks use a stainless steel worm with a high strength bronze drive sleeve. Metric capacities from 5 kN to 200 kN. 7800 | f: 216. 4. 000. For floating shaft applications, use two Flex-Rigid couplings. 80. 20. Please provide the following information when re - questing spare/repair parts: • Jack Size & Type Designation (i. 12kN to 76 kN. Ball Screws, Acme Screws, Lead Screws, Roller Screws. Screw Nails. More Details. Start with a base screw jack and add accessories to configure a complete linear motion system. Anode Jacks. The rod overall measures 17-3/4-inches long x 1-inch diameter. 4. 0. Details. Nook Industries offers worm gear screw jack systems that can be used individually or in multiple arrangements. Linear Motion Systems & Solutions. info . Ball Screw (PMBS) Torque Calculator. Add a flat mounting surface to a ball screw jack to support loads. 4 Jacks. It should be applied generously on. Twin-lead ball screws can be used in molding machines, packaging equipment, food processing machinery, robotics, material handling equipment, tire manufacturing and. 75" x 3. Variety of worm gear ratios resulting in a wide range of speeds and thrust capacities. (“Nook”), these Terms and Conditions apply to any purchase of goods or services by Nook from a. 12. Inch Worm Gear Machine Screw Jack, Upright Rotating, 5 Ton Capacity, 24:1 Gear Ratio Read More Product SpecificationsNook Industries manufacturers linear motion solutions including, precision ball screw, acme screw, screw jack, linear actuator, and electric cylinder products. 106. 24 allowable input torque values. Larger travel nut increases life. The LCD is not fused to the front panel assembly, making replacement easy, if necessary. Temperature Range Maximum [°F] Temperature Range Minimum [°F] Dropping Point [°F] Oil Viscosity cst @ 40° C. These connectors are often used in applications involving monitoring, control, and communication. Handwheel. Specs Configure/Quote. Product Details. A screw jack may incorporate a machine cut lead screw or a rolled or ground ball screw in order to transfer rotational energy in to linear energy. The top has a crank handle connected to gears, which turns a long screw that separates the two metal tubes. Need Help with a Linear Motion Design? Collaborate with one of our technical experts on the specifics of your application to. Other materials, such as stainless steel, can be provided upon request. Nook Industries has always been a leader in developing high quality linear motion components and systems to meet the ever increasing demand for precision linear motion. Depending upon which jack model is pur-chased, the lifting screw is made of 4140 heat treated steel, 304 or 316 stainless steel, or a special alloy. Jack screw: Image credit: Fastenal. Machine Screw Jack Home Page. The ball screw and nut are made from hardened alloy steel with hardened bearing balls carrying the load between nut and screw. Torque to Raise 1 lb. The NSS is designed to allow easy field adjustments. 0. It can also back-calculate either the torque or the speed resulting from a particular power requirement. 004" (0. Configurations include parallel or inline with motor mounts and single or double gear reductions. Type 6K, End Code 25. An Anti-backlash Machine Screw Jack allows the lash between the drive sleeve thread and the lifting screw thread to be controlled by adjusting the top cover of the jack. While it may be desirable to totally eliminate backlash, the result would be a lock-up of lifting shaft and drive sleeve. 473" Read More Product SpecificationsA lifting screw cover is threaded into the bottom of the unit on the upright model, or in the top of the unit on the inverted model, in order to keep the lifting screw threads free of foreign material. 23. Linear Motion Systems & Solutions. , intent on becoming a global supplier of Linear Motion products. 00. 5022. 30. 32621. 667. Sensing speed range: 0 -10,000 rpm. Planetary Roller Screws are remarkable devices designed to convert rotary motion into axial. The lift shaft extends out from the top of the worm screw jack. Column Strength. Specs Configure/Quote. Tighten the jack mounting screws. Two magnets are secured to the end of the lift shaft to ensure a positive response once it passes near the position sensor. Nook Industries has the capacity to make long ball screws for special applications. 50. Ball Screw - Inch Standard Accuracy. 0. 0. Couplings with bores other than those. [Features] · This DCM shape / DC shape screw nut is a 30° lead screw manufactured according to the applicable standards. It normally consists of two metal tubes, one fitting inside the other. Rolled thread screws are cost effective and are stocked for quick delivery. founded Nook Industries, Inc. Standard Rolled Thread Ball Screw (commercial or transport type) Offer the low friction advantage of antifriction screws at lower cost. Type 1K - Driven Support End with Keyway. Four Jacks. Standard motors are 3-phase, 230-460 VAC, 60hz, 1,725 rpm. Nook/Thomson Bevel Gear Screw Jack systems are ruggedly . An inverted rotating ball screw jack has a lift shaft that moves a nut as it turns. 00. Metric Inverted Translating Machine Screw Jacks - 5 kN to 200 kN. 3 Quick Screw Jack Applications - Food Industry; 8 Design Considerations for Screw Jack Systems; Ball Screw Design - Safety Considerations;. Jacks may be limited by maximum temperature (200°F) and not duty cycle. Temperature Range, High End [°F] Temperature Range, Low End [°F] E-900. Type 6K, End Code 30. Static load is the max thrust loads when the Electric Cylinder is not operating. , 24:1 and 6:1 Read More Product SpecificationsAdjustable backlash Machine Screw Jack models are available to reduce backlash to approximately 0. Determine the. Download the PDF and start your project today. for ball screw, acme screw, screw jack and linear actuator products. Single Jack. They may be used individually or in multiple arrangements. 108. Proper lubrication is the key to continued performance and reliability of acme screw assemblies. Nook Industries manufacturers linear motion solutions including, precision ball screw, acme screw, screw jack, linear actuator, and electric cylinder products. As a major manufacturer of industrial lead screws, Nook Industries stocks a wide selection of ball screws. 7900 | toll-free: 800. NLGI Grade Number. Nook Modular Linear Actuators are flexible positioning systems made of self-supporting and wear resistant aluminum profiles. Bellows boots are available for all sizes and configurations of ActionJac™ Worm Gear Screw Jacks. Nook Industries – Linear Screws, Actuators, Jacks ISC Companies and Adams-ISC can supply the Nook products listed on this page and others found on nookindustries. JACK MODELS. Consult NOOK INDUSTRIES's entire Lead screw assemblies catalogue on DirectIndustry. com/multicomp-pro Element14. It will provide a load life expectancy of 50 million inches of travel at an operating load of 400 pounds. 1/2 x 13 x 1 Set Screw. Hex jackscrews are a hex shaped mechanical device that has an opening with a partial internal thread at one end and an externally threaded post at the opposite end. 50. The Ball Screw Jack housing is made of ductile iron (1/2 BSJ and 1/2 HL-BSJ jacks have aluminum housings, aluminum optional on one ton models) and designed to support the rated capacity of the unit. Download Spec Sheet. 003". For a shorter unthreaded center section, contact Nook Industries customer service at 800-321-7800. The NSS is designed to allow easy field adjustments. Inch Worm Gear Machine Screw Jack, Upright Rotating, 5 Ton Capacity, 24:1 Gear Ratio Read More Product Specifications Our clients rely on our proven knowledge and flexibility to design, test, and manufacture innovative linear motion solutions for their most challenging applications - serving virtually every industry. 285. Inverted Rotating Steel Machine Screw Jacks - 2/3 Ton to 12 Ton. Type 6K - Driven Support End with Keyway. Upright Rotating Inch Machine Screw Jacks - 1/4 Ton to 100 Ton. It is highly accurate, with repeatability up to ± . per inch of travel on the repeatable spring. Also in t. A nut is integrated with the worm gear such that the worm gear and nut rotate together. This is a rod, nut, and grease trap assembly for Ram 12K jacks. ActionJac: Machine Screw Jack, Anti-Backlash Adjustment Video. Worm Gear Screw Jack Home Page. The screw and nut assemblies are made of hardened. Screw Jacks and Environmental Applications. Rollers and nut are high-grade bearing steel. The lift shaft extends out from the top of the worm screw jack. 2 Jacks. All high bevel gear screw jacks are equipped with. Load capacities for Stainless Steel Machine Screw Jacks range from 1,300 to 23,000 pounds. This causes the load, which is attached to the travel nut, to move along the lift shaft. Universal Single Bearing Mounts are ideal for most mounting applications and allow the linear screw to flex naturally maximizing the life of the travel nut. Specs Configure/Quote. 2760. All jacks, shafts, couplings and motor should be carefully aligned for maximum performance. Nook E-900 Ball Screw Lubricant may be applied with a cloth or spray. Specs Configure/Quote. To 40,000 lbs. Download Printable Worm Screw Jack Form. Machine Screw Jack, Anti-backlash Adjustment Video . Specs Configure/Quote. Metric Planetary Roller Screw Assembly One Piece Cylindrical Nut. Upright Rotating. Specs Configure/Quote. Joyce/Dayton screw jacks and lifting systems offer wide-ranging lifting and positioning solutions for diverse industries. They are capable of higher speeds and longer predictable life when compared to similar. THK. Depending upon which jack model is pur-chased, the lifting screw is made of 4140 heat treated steel, 304 or 316 stainless steel, or a special alloy. Using our professional services will help you be more competitive on the market and it will save you time. Customized solutions for a range of drive types and guides. A nut is integrated with the worm gear such that the worm gear and nut rotate together. The lift shaft extends out from the bottom of the worm screw jack. Specs Configure/Quote. acme screws and nuts include a centralizing (C) thread form to prevent wedging and binding. A Upright Rotating Screw Jack has a lift shaft that moves a nut as it turns. Similar in construction and materials to PowerAc™ Inch Acme Screws and Nuts, the Trapezoidal thread form has been enhanced to include a centralizing thread form to prevent wedging and binding. Standard motors are 3-phase, 230-460 VAC, 60hz, 1,725 rpm. 1 Ton to 10 Ton Moves a load through an arc, such as tracking antennas, hinged doors or air dampers. 473" Read More Product Specifications A lifting screw cover is threaded into the bottom of the unit on the upright model, or in the top of the unit on the inverted model, in order to keep the lifting screw threads free of foreign material. Specs Configure/Quote. Screw Jack - Thomson Linear Screw Jacks - Nook Screw Jacks Worm Gear Screw Jacks Superior flexibility and strength for your linear motion applications Ruggedly. Nook Industries offers a wide assortment of screw jack accessories to accommodate specific applications. Ball Screw Jack. Upright Anti-Backlash Worm Gear Inch Machine Screw Jacks | Nook Industries Ball Screw Jack. The length of the leadscrew determines the maximum amount of expansion. A Inverted Rotating Screw Jack has a lift shaft that moves a nut as it turns. When you want a modern, up-to-date look for your eat-in kitchen, breakfast nook or dining room give this mixed media standard height dining table a try. A metric inverted rotating ball screw jack has a lift shaft that moves a nut as it turns. A Inverted Rotating Screw Jack has a lift shaft that moves a nut as it turns. Larger travel nut increases life. Specs Configure/Quote. For technical drawings and 3-D models, click on a part number. MBN Metric Standard Accuracy Ball Nut offers durable, low cost linear motion. 3 Quick Screw Jack. Learn about the features, specifications, and applications of Nook's screw jacks in this comprehensive catalog. 3 Quick Screw Jack Applications - Food Industry; 8 Design Considerations for Screw Jack Systems; Ball Screw Design - Safety Considerations;. After shimming, tighten the fasteners for the drive end support block to manufacturer's recommended torque with the carriage closest to the drive support block. Please provide the following information when re - questing spare/repair parts: • Jack Size & Type Designation (i. to bill Buyer, and Buyer agrees to pay, prices prevailing at the time of shipment. Single-phase motors are 115-130 VAC, 60hz,1,725 rpm. Assembly a standard ball nut onto a machined ball screw must be done with care to insure proper loading of the ball nut. Ideal for individual use or in multiple arrangements for larger mechanical systems, our screw jacks are produced to perform reliably. A 17-4PH hardened worm is available for a 300% increase in capacity. Bevel Gear Screw Jack Bevel Gear Screw Jack. Upright Translating Inch Machine Screw Jacks - 1/4 Ton to 100 Ton. Three sizes are also available in 17-4 PH stainless steel. Nook Industries; Archive. Inch Worm Gear Ball Screw Jack, Upright Rotating, 5 Ton Capacity, 24:1 Gear Ratio, Screw Lead 0. 7460. 2760. Half-Pitch DSUB 68-pin connector (0. Please provide the following information when re - questing spare/repair parts: • Jack Size & Type Designation (i. 50. 00. 400. 1. 1mm). into the nut O. Quotes. Jacks can be supplied with special pitch lift screws to change the jack operating speed. ook Industries control panels are designed to match the motor when shipped from the factory. Specs Configure/Quote. Linear motion engineering tool for PMBS ball screw. The replacement jack screw nearest to your description is part # TJD-12000-RODNUT that you referenced. Skip to Content (800) 321-7800. With a dial indicator, check the vertical displacement of the screw and linear guides. EZM-3045. Larger bearings and drive sleeve for durability. Linear Actuator - Inline with Servo Motor (Ball Screw) Performance Specifications. Two Jacks. Linear Actuators for Automated Packaging; Optimizing Diagnostic Laboratory Throughput; Medical Motion: Precision Ball Screw. 22 products. PowerAC 6"-1 1/2 RA. When the lift shaft is held to prevent rotation, it moves linearly through the gear box to move the load. Dropping Point [°F]: 550 NLGI Grade Number: 2 Oil Viscosity cst @ 40° C: 96 Oil Viscosity cst @100° C: 11. 90. How To Adjust a Limit Switch Video. 25" Read More Product SpecificationsTurns of Worm Per Inch Travel. Anything that reduces the amount of heat generated or increases heat dissipation will allow higher duty cycles. Part Number Reference. Machine Screw Models Series Gear ratio Screw diam. Nook screw jack system provides a solution to reduce the customer´s scrap rate, while also improving their process capabilities. MBN 10×2 RA Flanged. Nook HG hardened and ground shafting is manufactured for use with precision linear bearings and other applications requiring an accurate, round, hardened shaft or guide rod. Screw Jack Definitions and Technical Data; Keyed Screw Jack; Rotating Screw Jack; Translating Screw Jack; Anti-Backlash Machine Screw Jack; Double Clevis Screw Jack; Electric Cylinder Engineering Resources; Electric Cylinder Design Considerations; Electric Cylinder Definitions and Terms; Modular Linear Actuator Applications; Screw Jack FinishesUpright. Screw Jacks Ruggedly designed and produced with load-handling capacities up to 100 tons, Thomson screw jacks can be employed individually or easily configured into a multitude. All jacks, shafts, couplings and motor should be. Specs Configure/Quote. 12. Make sure the tape is clean and smooth, and to the correct diameter allowing for proper transfer of ball nut onto the threaded portion of the ball screw. Helpful and easy to use Screw Jack Resources including engineering calculators, design tools, glossary, definitions and much more. Support Jack Screw (7) Machinist Jack Screw (1) Ball Head Position Adjuster (10) Material. By adding Radial Support Bearings, you can increase the effective speed of the lift shaft or link shafting. When compared to general-purpose thread forms (G), centralizing threads. 2 NOOK/THMS BVL G JACKS. Low-friction ball bearings allow these screw jacks to use half the power required by an Acme screw jack to lift the same load. Specs Configure/Quote. Nook Powertrac Ball Nut - 0. Gear Ratio. 004" (0. A nut is integrated with the worm gear such that the worm gear and nut rotate together. Specs Configure/Quote. Skip to Content (800) 321-7800. Screw Jack. Keyed Screw Jack; Rotating Screw Jack; Translating Screw Jack; Anti-Backlash Machine Screw Jack; Double Clevis Screw Jack; Electric Cylinder Engineering Resources; Electric Cylinder Design Considerations; Electric Cylinder Definitions and Terms; Modular Linear Actuator Applications; Screw Jack Finishes; Ball Screw Jack Reference Number In this video, Scott Sterling of Nook Industries talks with Lisa Eitel of Design World about the fundamental operation and use of worm screw jacks. Ideal for individual use or in multiple arrangements for larger mechanical systems, our screw jacks are produced to perform. Quotes; Order and Shipments. The lift shaft extends out from the top of the worm screw jack. Jack screws are mainly used in computer and electronic components for D-type cable connectors. Trapezoidal Lead Screw. Standard boots are sewn from black neoprene-covered nylon fabric for oil, water and weather resistance. There are noInch Worm Gear Ball Screw Jack, Upright Keyed, 2. Nook recommends the. Keyed Screw Jack; Rotating Screw Jack; Translating Screw Jack; Anti-Backlash Machine Screw Jack; Double Clevis Screw Jack; Electric Cylinder Engineering Resources; Electric Cylinder Design Considerations; Electric Cylinder Definitions and Terms; Modular Linear Actuator Applications; Screw Jack Finishes; Ball Screw Jack Reference Number65. founded Nook Industries, Inc. 400. Electric Cylinders are ruggedly designed and produced in standard models with thrust capacities from 500 lbs. 5. Screw Jack Boot Template Data Forms. Use as permanent or temporary support in commercial concrete construction and structural repair jobs that require. 5 inch angle braces (to hang the shelves); 2 inch wood screws (to attach angle brackets to shelves);. A nut is integrated with the worm gear such that the worm gear and nut rotate together. U arrangement included a single 5-Horsepower 1750 AC Motor that allows full travel in 36 seconds, food-grade grease, compression load and a double safety factor. Specs Configure/Quote. Average temperature over 5000, 10,000, and 15,000 cycles. Lag screws are self-tapping screws that meant to be applied with a wrench or socket. Download Spec Sheet. The lift shaft is fixed to the worm gear. Nook manufactures precision acme screws and lead screws by thread. " American Restaurant in. Select a coupling with a maximum torque greater than the application torque. Enter the Nook part number and quantity in the comments field below, or complete the appropriate Application Data Form for your application and a Nook representative will contact you shortly. Details. Pulse output: 60 Pulses per revolution. 25170. com, or by filling out our online contact form. [in-lb] Lifting Screw Diameter [in] Screw Lead [in] Maximum Allowable Input [hp] Maximum Input Torque [in. Superior flexibility and strength for your linear motion applications. Performance Specifications. A Keyed Machine Screw Jack has a keyway machined along the length of the lifting screw. Linear Actuators for Automated Packaging; Optimizing Diagnostic Laboratory. Connect a motor or hand-crank shaft to the screw jack shaft to lift, hold, position, and. 75. Leads from . The lift shaft extends out from the bottom of the worm screw jack. 004” per foot lead ball screw jacks or belt/chain driven jacks contact Nook Industries for. into the nut O. Specs Configure/Quote. PowerTrac SRT 6000 - 1000 RH. The Amount of Power Needed to Drive a Load. Ball Screw Reference Number. See 4 photos and 6 tips from 109 visitors to The Breakfast Nook. 105. Our ball screws provide a high efficiency, low torque solution with high repeatability and outstanding positioning accuracy. To obtain optimum performance of Nook precision ball screws, it is required that the ball screws machined in their case hardened state. When the lift shaft is held to prevent rotation, the lift shaft will. In certain circumstances, the ball nut. WORM GEAR SCREW JACKS. A Uprighted translating jack has a lifting shaft that moves through the gear box. Lubrication intervals for the lift shaft of Machine Screw models are determined by the application. 12. 07. e. D. 5 inch lead and ±0. These one-piece, high performance ball screws are made from high alloy steel that is black oxided for protection. Thread Adapters for Drum Openings. Nook HG hardened and ground shafting is manufactured for use with precision linear bearings and other applications requiring an accurate, round, hardened shaft or guide rod. Torque to Raise 1 lb. Upright Translating Inch Machine Screw Jacks - 1/4 Ton to 100 Ton. Inch Worm Gear Machine Screw Jack, Upright Rotating, 2 Ton Capacity, 24:1 Gear Ratio Read More Product Specifications Collaborate with one of our technical experts on the specifics of your application to ensure the ideal product fit that best meets your performance requirements and budget. Standard Rolled Thread Ball Screw (commercial or transport type) Offer the low friction advantage of antifriction screws at lower cost. The trunnion pins should be made from steel with a hardness greater than 30 HRC and a yield strength greater than 60,000 psi. Quotes; Order and Shipments. The lift shaft is fixed. When the lift shaft is held to prevent rotation, the lift shaft will move linearly through the gear box to move the load. Specs Configure/Quote. Learn more about these systems today. The maximum distance between the trunnion pin support mounting surfaces should be less than or equal to the "A" dimension plus 0.