Zenith® Planetary Gear Pumps
Model HSD-6191, 3 Outlet Ports X 1 Level

HSD-6191 Planetary PumpDisplacement per Port (cm3/rev):  0.4 - 3.6
Speed Range (rpm):  6-40
Viscosity Max. (Poise, Pa-s):  5000, 500
Inlet Pressure Range (bar, psi):  10-100, 145-1450
Outlet Pressure Range (bar, psi):  500, 7200*
Diff. Pressure Max. (bar, psi):  400, 5800†
Mech. Torque Max. (N-m, in-lbs):  See Table Below
Drive Shaft Seal:  Mechanical Face with Tang Slot
Temp. Operating Max. (°C):  340°‡
Temp. Cleaning Max. (°C):  510°
Standard Material:  High Speed Tool Steels

*Assumes inlet pressure of 100 bar
† Assumes viscosity of 2500 Poise and speed of 40 rpm
‡ Limit due to bolting, higher temperature bolting available

Displacement
per Port
(cm³/rev)		 Dimension "X" Mech. Torque
Maximum		 Sizing Factors Pump Weight Pump Assembly Number
mm inch N-m in-lbs K1 K2 Kgs lbs
0.4 72.4 2.85 68 600 171 1720 4.5 10 11-61910-6000-0
0.6 73.6 2.90 96 850 171 1670 4.6 10 11-61910-7000-0
1.2 77.4 3.05 181 1600 171 1530 4.8 11 11-61910-9000-0
1.8 81.8 3.19 203 1800 171 1410 5.1 11 11-61911-0000-0
2.4 84.9 3.34 249 2200 171 1310 5.3 12 11-61910-0000-0
3.0 88.6 3.49 305 2700 171 1230 5.5 12 11-61911-5000-0
3.6 92.4 3.64 305 2700 171 1150 5.8 13 11-61911-4000-0

Parts List
Item
Number		 Part
Description		 Quantity
per Pump
1 Drive shaft 1
2 Rear plate 1
3 Key 2
4 Driven gear 3
5 Gear plate 1
6 Arbor 3
8 Front plate 1
9 Driving gear 1
10 Coupling housing plate 1
11 Universal seal coupling 1
12 Hub seal plate 1
13 Plate screw 6

14

 Hub screw 3
15 Dowel 2
Bolt Torque Table, Grade 12.9
Cap
Screws		 Bolt
Size

Torque *
N-m in-lbs kgs-cm
For plates M6 11 96 111
For hub M8 26 232 267
For mounting M12 91 803 925

* Screws lubricated with high temperature thread lubricant, anti-seize compound.

HSD-6191 Planetary Pump Diagram