Page 37 - Parker - Gearheads and Gearmotors

RS Output Shaft Load Rating

RS180
9.0k 2.0k Formulas to calculate radial load
8.0k Radial Pr* (Prx) at any distance "X" from the
Axial gearhead mounting surface:
7.0k
Radial load (P ) @ 62.5 mm (2.46in)
r
from the mtg surface
Load, P (N) 4.0k 1.0k Prx = Pr * 138 mm / (76 + X)
6.0k
5.0k
3.0k
1.5k Load, P (lb)
2.0k 0.5k Prx = Pr * 5.43 in / (2.99 in + X)
1.0k
0 0
0 100 200 300 400 500 600
Speed, n (rpm)

RS220
40k 9.0k
Radial Pr* 8.0k
Axial
30k Radial load (P ) @ 84 mm (3.31in) 7.0k
r
from the mtg surface 6.0k
Load, P (N) 20k 5.0k Load, P (lb) Prx = Pr * 190 mm / (106 + X)
4.0k

10k 3.0k Prx = Pr * 7.48 in / (4.17 in + X)
2.0k
1.0k
0 0
0 100 200 300 400 500 600
Speed, n (rpm)

* Radial load applied to center of the shaft.
RS Inertia

All moment of inertia values are as reflected at the input of the gearhead

Frame Size
Ratio Units RS180 RS220
gm-cm-sec 2 26.5 82.2
5
oz-in-sec 2 0.368 1.14
gm-cm-sec 2 16.7 50.4
10
oz-in-sec 2 0.232 0.700
gm-cm-sec 2 15.2 47.4
15, 30
oz-in-sec 2 0.211 0.658
gm-cm-sec 2 10.7 34.3
20, 25, 40
oz-in-sec 2 0.149 0.476
gm-cm-sec 2 6.70 21.2
50, 100
oz-in-sec 2 0.093 0.294

Parker Hannifin Corporation • Electromechanical Automation Division • 800-358-9070 • www.parkermotion.com 37