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Effectivly reduce assembly time and increase your machine accuracy.
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Saving maintenance time and cost.
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Improving machine quality.
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Thread Run-out with Axial
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Turning Locknut
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Grinding Locknut
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Pitch Diameter
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Big tolerance
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Small tolerance
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Surface Thread
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Turning (compare figure)
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Grinding (compare figure)
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Clearly indicate that the tuning locknut has roughened thread surface. When set forces, it will reduce preload and even locknut loosens.
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Thread Precision
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Precision level of every part are related to the locknut safety.
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(1)Mountain Shape (60º)
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(2)Pitch
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(3)Half angle vertical degree
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Turning Locknut |
Grinding Locknut |
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Thread Run-out with Axial |
0.005mm |
0.002mm |
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Precision of Pitch Dia. |
ISO 4H |
higher than ISO 4H |
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Material |
SCM440 |
SCM440 |
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Treatment Hardness |
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HRC28°~32°(high tensile strength) |
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Surface Roughness |
turning |
grinding |
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Thread Precision |
low |
high |
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Price |
low |
high |