Metric Ball Screw Jacks

  • Ball Screw Jack - Upright 5 to 200 kN
  • Ball Screw Jack - Inverted 5 to 200 kN
  • Ball Screw Jack - Upright Rotating 5 to 200 kN
  • Ball Screw Jack - Inverted Rotating 5 to 200 kN

Key Features

Ball Screw Jacks – 1/4 Ton to 100 Ton & 5 kN to 200 kN

  • ActionJac™ Inch or Metric Worm Gear Ball Screw Jacks use a ball screw and nut made from hardened alloy steel with hardened bearing balls carrying the load between nut and screw. This rolling action reduces friction between the nut and the screw permitting smooth and efficient movement of the load. Because of the greater efficiency and rolling action, the ball screw can operate at higher speeds or increased duty cycle when compared with the Machine Screw Jack.
  • Available Finishes:
  • Standard Nook Epoxy, Nook Outdoor, Nook Marine (Can also paint to customer specification).

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  • Rigorous Process Control – All in One Facility Nook reliability minimizes downtime while increasing the efficiency and performance of your machines. We accomplish this with a rigorously controlled process integrity that includes Lean Manufacturing, 5S, and Six Sigma. Our Quality systems emphasize continuous improvement, defect prevention, statistical methods and ongoing training to increase the knowledge and skills of all employees. Capabilities Include: Precision Thread Rolling: Regular production ¼” – 6″ diameter, ability to roll up to 14″ diameter In-house ability to heat treat solid and hollow ball screws and linear shafting Multi-touch, multi-level customer support teams Our Facility Is: ISO 9001 Certified AS9100 Certified ITAR Registered

    Product Durability and Flexibility Durability is a Nook hallmark. You can trust our products to deliver steady performance year after year because they benefit from over 50 years of engineering and manufacturing experience. We utilize the highest quality raw materials in our products while providing extensive on-going training to our team. Every part in a Nook product is inspected and tested before assembly, and every system that comes off our line is fully tested prior to shipment. This craftsmanship provides unmatched reliability for the your most demanding applications in the toughest environments. Our offerings range from Acme or ball screw assemblies to to electric actuators, to jacks, to modular actuators. Nook delivers maximum flexibility to machine developers by providing complete linear motions solutions with a multitude of: Configurations Mounting options Sizes Accessories

    Unmatched Service Nook is your trusted partner for highly efficient collaboration, unmatched responsiveness and accessibility. We are committed to reducing customer development cycles by providing an abundance of easy-to-use resources including: Downloadable 3D Models Design Tools Product Configurators Application Specific Tools Collaborate with our highly experienced engineering team early in the design process to integrate a complete linear motion solutions with the optimal balance of performance, life, and cost for your next application.

     


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  • Founded in 1969 by Joseph H. Nook, Jr., Nook is a privately owned, US-based complete source of premium linear motion solutions with a strong presence in the Greater Cleveland community. We provide our clients with proven knowledge and flexibility to design, engineer, and manufacture premium quality linear motion systems and solutions for their most challenging applications. Our customers benefit from a wide range of premium products and services that fit well into unlimited industries. In many cases, our competition is significantly larger, but our nimbleness fosters innovative solutions tailored to enhance the individual needs of each and every customer by providing affordable standard or custom engineered solutions.

Typical Applications

Machine Screw Jacks are the most widely used mechanical actuator for intermittent duty cycles as the actuator incorporates a precision worm gear set in a rugged casting delivering positive, precise actuation.

The cubic design offers modern aesthetics and versatile mounting on two faces of the gearbox, while eliminating the need for upright and inverted variants.

Available in a comprehensive range of materials and fittings resulting in over 140 million configurations to help you meet your specific application requirements. View our Industries page for application examples and further information.

Selecting the Right Screw Jack

Consider all application constraints then choose a product that looks suitable for the intended application. If you need help choosing which Screw Jack best meets your requirements then, calculate the power and torque requirements. This is a 5 step process:

  • Screw jack Input Speed
  • Operating Input Power (kW),P
  • Operating Input torque
  • Screw jack start-up torque
  • Mechanical Power and torque check

View our 5 Step Machine & Ball Screw Selection Guide. You may also find our Jacking System Reference Guide useful.

Special Designs

Modifications to the standard screw jacks:
This would include non-standard painting or plating of the housing, 2 or 3 start threaded lifting screws, stainless steel lifting screws or worm shafts, increased closed heights, extended worm shafts, opposite threading of lifting screws etc.

  1. Additions to the standard screw jacks:
    Items such as wear indicators, safety nuts, rotation monitoring kits, special lifting screw end fittings, encoder adapter flanges etc.
  2. Completely special screw jacks:
    Where a modification of our existing range is not practical we have the facilities to design and manufacture screw jacks tailored specifically to your requirements.

View some special design examples in the Industries section.

Jacking Systems

The screw jacks can be connected together in systems so that multiple units can be operated and controlled together. These jacking system arrangements or configurations can be built in many formats with the use of bevel gearboxesmotorsreduction gearboxesdrive shaftscouplingsplummer blocks and motion control devices.

Two of the most popular system configurations are the ‘H’ and ‘U’ configured jacking systems.

Multiple screw jacks can be linked together mechanically or electrically. The latter is useful if there is no space for linking drive shafts.

If multiple machine screw jacks are connected in a mechanically linked system then the complete system may be considered self-locking. If you would like this checked please consult Power Jacks. Alternatively, to be sure, include a brake on the system either as a stand alone device or as a brake motor.

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