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JF TYPE LARGE HEAVY LOAD BALL SCREW

JF TYPE LARGE HEAVY LOAD BALL SCREW

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Large and heavy-load CNC lathes, CNC boring machines, CNC milling machines, large iron and steel smelting equipment, jacks and spinning machines and other mechanical equipment.
Product details

Note

1)    Kc is theoretical calculation value when preload Fp is 0.1Ca and axial load F is 0.3Ca. 

2)    When axial load F is not equal to 0.3Ca, 

In formula :

K is stiffness value shown in Table;

3)   Working temperature: ± 80°C

4)   If you have special request, please tell us.

Dimension

Specifications

Spec.Nominal dia.
d0
Basic lead Ph0Outer dia.
d1
Ball dia.
Dw
Bottomdia.
d2
Number of
circles n
Basic rated loadStiffness
KC N/μm
Dynamic  Ca kNStatic  Coa kN
JF8020-880207812.768.98305.11074.72498.5
JF8025-580257812.768.95203.7670.51619
JF8025-880257812.768.98305.11072.82538.1
JF8032-580327812.788.95202.8668.41636.1
JF8032-880327812.768.98303.91069.52564.5










JF10020-5100209712.787.95233.7887.31896.9
JF10020-8100209712.787.98350.11419.72976.5
JF10025-5100259715.87585.75304.31050.51904.3
JF10025-8100259715.87585.784571679.33058.3
JF10032-5100329715.87585.75304.31047.41985.4
JF10032-8100329715.87585.78455.91675.93113
JF10040-4100409715.87585.74250.2835.51620.5










JF12520-512520123.512.7114.452581103.22236
JF12520-812520123.512.7114.48386.61765.13514
JF12525-512525123.518.256110.65406.21523.52304
JF12525-812525123.518.256110.68608.52437.63615


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