Lead Screw Nut Selection

Lead Screw Nut Selection
Kerk™ Lead Screw Assemblies are modified acme thread forms optimized for performance and available in a broad range of lead screw diameters, leads and nut styles, custom designed for your application. Kerk lead screws are self-adjusting, maintenance-free and require no lubrication. Providing maximum accuracy, high reliability, smooth, quiet operation and low cost, Kerk lead Screw Assemblies are your best choice for high performance linear motion control.

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Nut Feature Nut Style
• = Good  •• = Better  ••• = Best
Units  ZBX ZBA ZBM KHD WDG NTB VHD BFW
Max Dynamic Load  lb
35 55 1 20 75 200 350 500
N
155 245 4.4 89 333 890 1557 2224
Compactness   •• •• ••• •• ••• •• •••
Typical Drag Torque   •• •• •• ••• •• •• ••• N/A
Vibration Damping horizontal ••• ••• ••• •• •• N/A
vertical ••• ••• ••• •• •• N/A
Smoothness   •• ••• •• •• •• •• ••
Backlash
Compensation
  •• •• ••• ••• ••• ••• N/A
Drag Adujusted   N/A ••• N/A •• N/A •• N/A
Stiffness   •• •• •• ••• ••• ••• ••• N/A
Easy to Modify   •• ••• •••
Custom Material   •• •• ••• •••
Best for Fine Leads <.2",5mm ••• ••• ••• ••• ••• •• ••• •••
Best for Long Leads >1",25mm ••• ••• N/A ••• ••• ••• ••• •••