
Accessories
Bison Shaft Mount Encoder
Part Number Voltage Pulses Channels Weight
P208-010-0012 5 12 1 1
P208-010-0030 5 30 1 1
P208-010-0100 5 100 1 1
P208-010-2030 5 30 2 1
All mounting hardware and stub shaft included
Armature Shaft Extension Kit
Part Number A B Weight
108-100-0316 .184/.186” 0.88 1
108-100-0416 .246/.248” 0.88 1
108-100-0516 .309/.311” 1.03 1
108-100-0616 .371/.373” 1.03 1
108-100-0716 .434/.436” 1.43 1
108-100-0816 .496/.498” 1.43 1
Threaded stub shafts fit Bison’s PMDC Gearmotors
under 1/2 HP.
Replacement Brushes
Part Number Key
P158-200-2001 A
P158-200-2600 B
P158-200-2615 C
P158-200-9000 D
P158-406-0008 E
P158-200-2624 F
P158-200-2690 G
P158-060-2000 H
Threaded Stub Shaft for 1/40-1/4HP DC Motors
B
+0.001
0.185
-0.001
DIA
A
.43 .06
#10-32 UNF-3A
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A
ACCESSORIES
E
Gear & Engineering Corp.
B
C
F G
D
H

Power-Off Brakes*
Part Number Voltage Bolt Circle Bore
P133-100-0003 115V 2.88 5/16” 3 2
P133-540-0007 115V 2.88 5/16” 7 2
P133-550-0018 115V 2.88 5/16” 18 2
All mounting hardware included
* Power off brakes should be used with the AC gearmotors only. Does
not mount to 1/4 HP-480 Series motors, 1/2 HP or 1 HP motors.
The holding torque listed is specified at the motor shaft. Motor shaft
holding torque can be calculated by dividing the gear ratio into the
static output shaft torque, less 5% per stage of gearing.
Static Holding
Torque (In-Lbs.)
Weight
Shaft Bushing 5/8” to 7/8”
Part Number Weight
134-158-0200 1
Mounting Base 100 Series
Part Number Gearcase Shipping Wt.
P125-100-9998 100 1
Mounting Base 650 Series
Part Number Gearcase Shipping Wt
P125-650-5000 650 1
Mounting Base 746 Series
Part Number Gearcase Shipping Wt
P125-746-0500 746 1
Mounting Base 881 Series
Part Number Gearcase Shipping Wt
P125-880-0003 881 1
P125-100-9998 shown.
See website for additional mounting boxes.
ACCESSORIES
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