113
Specifications are subject to change without notice
Gearmotors
IP55 WASHGUARD
™
GEARMOTORS
PARALLEL SHAFT
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/",
Full Over-
DIMENSIONS
F.L.
Gearmotor
Arm.
Load hung
Output Torque Input
Catalog
Type &
Ratio
Volts Amps Load
P
PB
X
XL
XH
RPM (Lb.In.)
HP
Number
Frame
to 1
DC
DC (Lbs.)
Inches
5
353
1
⁄
20
M1125261
P303-31 336
90
.81 565 3.13 3.80 3.54 10.44 8.94
31
220
1
⁄
8
M1125262
P303-31 58
90
1.6 327 3.13 3.80 3.54 11.94 10.44
51
130
1
⁄
8
M1125263
P302-31 35
90
1.6 277 3.13 3.80 3.54 11.94 10.44
94
77
1
⁄
8
M1125264
P302-31 19
90
1.6 236 3.13 3.80 3.54 11.94 10.44
167
43
1
⁄
8
M1125265
P302-31 11
90
1.6 197 3.13 3.80 3.54 11.94 10.44
General
Specifications:
DC permanent
magnet
gearmotors rated
for continuous duty.
Designed for use
with fullwave non-
filtered SCR controls
or battery supplied low
voltage for adjustable speed
applications requiring constant
torque throughout the speed range.
Mechanical Specifications:
Gearbox output shafts are coated with Mirolon 3300
fortified Teflon for superior corrosion resistance.
Frame, endshields, armature and interior
components protected by enamel and polyester
compounds for resistance to moisture, acids, alkalies
and oil.
Cast conduit box with threaded conduit holes and
Nitrile gaskets keep water out. The conduit box cover
is made from 304 stainless steel.
For any condensation that may accumulate inside
the motor a one-way stainless steel vapor vent
is provided. All hardware is stainless steel. Motor
painted with white epoxy for superior corrosion
resistance and protection. Machined fits between the
endbells and motor frame are sealed with gaskets.
Thru-bolt heads and nuts sealed with fiber washers.
O-rings under each threaded brush cover.
Precision machined in-line steel gears, with a first
stage steel helical gear followed by spur-type gears.
Lubrication is permanent semi-fluid grease, reducing
possibility of leakage. Output shafts have needle
bearings for high load capacities.
Application Notes:
LEESON WASHGUARD™ motors are designed
for extended life in applications requiring regular
washdown or otherwise wet environments.
Washguard™ motors retard the entrance of water.
Extra protection for the motor’s interior prevents
rust and corrosion build-up and releases trapped
moisture to insure a longer life than possible with a
standard motor.
These gearmotors are designed for mounting at
any angle, but shaft up with motor below should be
avoided to prevent leakage of lubricant into the motor
should the shaft seal fail.
Overhung load capacities shown are at center of the
output shaft.
The motor’s stall torque exceeds recommended full
load torques for the gearboxes. A current limiting
device should be used to prevent damage to the
gear sets.
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/",
Full Over-
DIMENSIONS
F.L.
Gearmotor
Arm.
Load hung
Output Torque Input
Catalog
Type &
Ratio
Volts Amps Load
P
PB
X
XL
XH
RPM
(Lb.In.)
HP
Number
Frame
to 1
DC
DC (Lbs.)
Inches
5
353
1
⁄
20
M1125266
P303-31 336
12
6.4 565 3.13 3.80 3.54 10.44 8.94
31
220
1
⁄
8
M1125267
P303-31 58
12 11.0 327 3.13 4.43 3.54 11.44 9.94
"XH"
3.75 REF
"P"
1.86 REF
1.450 1.500
1.50
"X"
.175
.66 1.656
"XL" REF
1.125
2.250
4.75
(8) Ø.230 X .44 DP
(3) 1/4-20 UNC-2B
.50 DP
(4) Ø.290
.672
3.375
3.125 ±.010
3.000
3.50
5.12
Ø1.40
REF
1.688
1.50
3.00 REF
3.375 REF
4.08 REF
1/2 NPT
CONDUIT
PLUG
MOTOR LEADS
6.0 LONG MIN
.187 SQ KEY
1.00 LONG
Ø.625 .624
2.94 REF
3.60 REF
"BD" REF
4.96 REF
6.35
TOP
IMMERSION PROOF
BREATHER
2.00
4.00
.281
TYP
