KRHS Series Steady Rest

KRHS is designed for crankshaft machining.

KRHS is designed for crankshaft machining.

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The KRHS Series is a steady rest designed for crankshaft machining. Kitagawa-NorthTech can supply a full range of steady rests for crankshaft applications from automotive to heavy railway and marine.

STANDARD FEATURES

  • Safety valve
  • Provision for max. opening feedback
  • Spare set of chip guards
  • Spare set of rollers
  • Provision for compressed air connection
  • Provision for centralized lubrication
  • Optional:  Provision for coolant flush
(Click image for larger view)

KRHS Drawing

Steady Rest TypeKRHS 315PKRHS 520DKRHS 528CKRHS 839KRHS 222KRHS 422KRHS 429KRHS 419KRHS 520K
A503620.5730804279621621621613.5
B331442515595189437437437442
C13818017825570146146146180
D13521027027085240240240210
E266330400400170365365365330
F300370450440190400400400370
G80671021105779797970
I10011810210869727272100
J31404037—-33333331
K222632402222291929
L141620201213161018
M354062623552525252
N (dia)132132147137—-122122122132
P114.5160160216.558.5128128128160
Q160.5196186184124162162162160.5
r139.5187.520925273172172172187.5
S182023231423232320
T11317018322757.5—-—-—-170
T12527322317—-—-—-27
T22527322317—-—-—-27
Clamping range without chip guardU140457080830303050
U285100150200101245245245100
Max. axial openingU220236322402105260260260212
Clamping range with 3 piece chip guardU140457080830303050
U285100150200101245245245100
Max. axial openingU220236322393105260260260212
Eccentric throwR11012015519555127127127108.2
Cylinder bored (dia)808080805060606080
Hydraulic connection (BSP)e1/4″1/4″1/4″3/8″1/4″1/4″1/4″1/4″1/4″
Lubrication portsgM8X1M8X1M10X1M10X11/8″1/8″1/8″1/8″1/8″
Standard operating pressurebar5(30)5(40)5(55)5(55)5(70)6(50)6(50)6(50)1(40)
Max. operating pressurebar354560607055555555
Max clamp force/rollerdaN500100014001400450470470470830
Clamping pressure/roller at 6 bardaN10010010010045565656100
Centering accuracy over entire clamping rangemm0.040.050.050.050.020.040.040.040.05
Repeatabilitymm0.010.010.010.010.0050.010.010.010.01
Max peripheral speedm/min500525350350920720720720720
Approx weightkg507015019018.586868680