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Motion control card, Plain bearing, Electromagnetic clutch, Guide, Spline shaft
Text version of the page
Tolerance class TC 5 > 5
nl [rpm]
140,000 100,000
d0 [mm] d0 [mm]
1A
1B
2
3 4
Example:
d0 = 63 mm;
lcr = 2700 mm
Bearing
ncr = 970 rpm
fcr = 1.56
ncrp = 0.8 . 970 . 1.56
ncrp = 1210 rpm
3
Calculation Speeds
Critical speed ncr [rpm]
Limit speed nl [rpm]
ncrp = 0.8 . ncr . fcr > nmax [rpm]
ncr = 1.2 . 108 .
[rpm]
d [mm]
d3 d0 Dw [mm] Dw = ball ř
index p ¨ permissible
d0 + d3
2
d
/cr
2
www.danahermotion.com 29
Ball screws