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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Watch video Tribology and Material Selection for Polymer Lead Screw Nuts, and Lubrication Options |
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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 Adjusted |
|
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 |
••• |
••• |
••• |
••• |
••• |
Patented Noise Reduction
Centralizer Option Available* |
|
|
|
|
|
|
Yes |
|
Yes |
|
*Haydon Kerk’s Noise Reduction Centralizer is a patented technology that provides ultra-quiet performance for applications requiring virtually no audible noise.
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