With standard seals
With backlash, reduced backlash,
preload 2% or 5% C
For precision-rolled screws SN-R of
tolerance grade T5, T7, T9 and groundthread
screws SN-F of tolerance grade P1, P3, P5, (T7)
d0 : nominal diameter P : lead(R=right-hand, L=left-hend) Dw : ball diameter i= number of ball track turns
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