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Acme Screw & Lead Screw Products

Nook manufactures precision acme screws and lead screws by thread rolling, thread milling, or thread grinding processes. Each process produces high precision screws with centralized thread forms for smooth, no-wedging performance. We offer the largest selection of rolled acme screw sizes in the industry. Rolled Thread Screws are stocked for quick delivery.

  • No noise because there are no rolling components
  • Ideal for vertical and light load applications
  • Preloaded nut assembly reduces or completely eliminates backlash (wide application scope)
  • Safe to operate when the unit has a static load to hold
  • Self-locking - no need to apply brakes, even in situations of power outage
  • Low cost solution

Inch Precision Acme Screws

Acme Screw and Nut assemblies provide turn key solutions that only require a power source (hand operation or motor). All of the elements are available for quick delivery from shelf stock. Twin-lead acme screws offer dual opposing motion using a single drive system. These one-piece high performance acme screws are made from high alloy steel that is black oxided for protection and can be assembled with Nook PowerAc™ acme nuts, flanges and EZZE-MOUNT™ bearing supports to form cost effective systems.

ROLLED ACME SCREWS
Nook offers the largest selection of rolled acme screw sizes in the industry. Rolled thread screws are cost effective and are stocked for quick delivery.

MILLED ACME SCREWS
Milled thread screws allow more variety in journal machining, particularly where a design requires the journal O.D. to be larger
than the screw major diameter.

GROUND ACME SCREWS
Ground thread screws offer higher lead accuracy for applications where positioning tolerances are extremely critical.

Inch Precision Acme Nuts

Inch Acme Nut - Bronze
  • Tensile Yield: 50,000 psi
  • Tensile Ultimate: 65,000 psi
  • Hardness: HB75
  • Dynamic co-efficient of friction: 0.125 with Nook Lubricant
Inch Acme Nut - Plastic

• Tensile Strength @70°F: 8,000 psi
• Compressive Strength @70°F: 16,000 psi
• PV Limit: 2,700 lubricated
• Co-efficient of friction: 0.10 lubricated

Metric Precision Acme Screws

Acme Screw and Nut assemblies provide turn key solutions that only require a power source (hand operation or motor). All of the elements are available for quick delivery from shelf stock.

Twin-lead acme screws offer dual opposing motion using a single drive system. These one-piece high performance acme screws are made from high alloy steel that is black oxided for protection and can be assembled with Nook PowerAc™ acme nuts, flanges and EZZE-MOUNT™ bearing supports to form cost effective systems.

Trapezoidal Lead Nut

Related Acme Screw Products

End Supports

EZZE-MOUNT™ precision bearing blocks can be assembled to ball screws and lead screws screws, providing a complete solution for most linear motion applications. Both end bearing mounts and end machining are offered as a complete assembly.

 

End Machining

Linear motion applications utilizing a ball screw or an acme screw require this screw end machining to be matched with precision bearing mounts. Nook offers both end bearing mounts and end machining as a complete assembly.

   

Lubricants

E-900 Ball Screw Lubricant may be used on both rolled and ground thread ball screws. E-900 will provide a lasting film for wear protection and resistance to corrosion. With an operating range of -65° to +375°F, E-900 has low starting torque characteristics and helps reduce inter-ball friction in ball screw assemblies.

For optimum results the ball screw should be in good repair and free of dirt and grease. Used regularly, E-900 will extend the life of ball screw assemblies. It should be applied generously on the entire length of the screw.