Cast iron gear motors including fan drives

  • Overview
  • Documents
  • Related products
  • Related applications
  • Related solutions

Specifically designed for demanding mobile equipment applications 

The compact size (20% smaller than conventional gear motors), with side and rear port options, adds to the design flexibility for installation in tighter places. Additionally, the use of high temperature seals and a dust resistant shaft seal protector improve performance and help extend operating life.

The D-motor differs slightly from the D-pump in internal design. The D-pump uses a thicker dual pressure-balanced thrust plate design to ensure high starting torque and long life with lower viscosity oils. The design of the body allows for high axial and radial external loads without the need for an outrigger bearing assembly.

For fan drive applications, a variety of valve options are offered for great flexibility to allow for integrated reversing, proportional relief, fixed relief, and anti-cavitation valves.

Specifically designed for demanding mobile equipment applications where maximum performance is required at peak power levels and operating temperatures our cast iron motors ensure great productivity and excellent fuel efficiency along with reduced vehicle emissions.

Features and benefits

Non-tin-coated external surface allowing higher bearing loads due to high pressures

Thrust plate design for high efficiency over a wide temperature range

Teflon® coated bushings for extended life under extreme temperature and pressure conditions

A high strength cast iron construction for efficient performance in continuous operation

Custom engineered shaft bearings and dual pressure-balanced thrust plates for high starting torque and long life

Easy installation in optimized machines due to compact, power-dense design

Viton® seals are standard to sustain higher temperature and fluid capabilities

A variety of integrated valve options

Technical specifications
Ratings Units 14 17 19 21 23 25 29 32 36 38 41 45
Displacement cm3/rev
[in3/rev]
14.9
[0.91]
17.6
[1.08]
19.9
[1.22]
22.4
[1.37]
23.2
[1.42]
26.2
[1.6]
30.6
[1.87]
34.4
[2.1]
38.6
[2.36]
40.9
[2.5]
42.9
[2.62]
48.3
[2.95]
Rated pressure bar
[psi]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
241
[3495]
210
[3045]
Peak pressure bar
[psi]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
265
[3843]
231
[3350
Speed at rated pressure Max 
min-1
(rpm)
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3000
[600]
3000
[600]
Start speed at 1000 PSI Min
min-1
(rpm)
400 400 400 400 400 400 400 400 400 400 400 400
Weight kg
[lb]
8.46
[18.7]
8.53
[18.8]
8.66
[19.1]
8.80
[19.4]
8.94
[19.7]
9.07
[20.0]
9.38
[20.7]
9.53
[21.0]
9.84
[21.7]
9.93
[21.9]
10.16
[22.4]
10.43
[23.0]
Mass moment of inertia of internal rotating components x10-6 kg•m2
[x10-6 lbf•ft2]
113
[83]
127
[94]
138
[102]
146
[107]
156
[115]
172
[127]
191
[141]
206
[152]
228
[168]
239
[176]
255
[188]
276
[204]
Theoretical torque at rated pressure N•m
[lbf•ft]
62.6
[46.2]
65.7
[48.5]
73.4
[54.2]
79.2
[58.4]
87.0
[64.2]
98.2
[72.4]
112.1
[82.7]
122.9
[90.7]
139.6
[102.9]
146.9
[108.3]
138.4
[102.1]
132.4
[97.6]
Theoretical power at rated speed kW
[hp]
22.3
[29.9]
23.4
[31.2]
26.1
[34.9]
28.2
[37.6]
31.0
[41.3]
35.0
[46.6]
39.9
[53.2]
43.8
[58.4]
49.7
[66.3]
46.1
[61.1]
43.5
[58.0]
41.6
[55.5]
Case drain pressure bar
[psi]
5
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]

Documents

Type Name Language Valid for Updated Download File type
User guide Gear Motors D Series Gear Motors Including Fan Drive English Multiple 01 Oct, 2019 4.5 MB .pdf
Data sheet Hall Effect Speed Sensor D Series Gear Motor Data Sheet English Multiple 29 Sep, 2019 538.8 KB .pdf

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