Bison Gear & Engineering Multi-Tech Reducers Catalog Page
Specifications
185 & 385 Multi-Tech Reducers
Gearing: Hardened steel, AGMA Class 9
Housing: Precision machined die cast
aluminum
Lubrication: Grease filled, sealed and
gasketed
Bearings: Needle and thrust ball
Multi-Tech Reducers
REDUCERS UP TO 350 IN-LBS
Add your own stepper or servomotor to our NEMA gearboxes.
Highly efficient - helical-spur geartrains transmit 96% of
the available power per stage, leading the industry. Low
backlash ratings - less than 60 arc-minutes, create the ideal
gear reducer for applications such as process conveyors,
pumps, and dispensers. Shock load capability 200% - is
standard in the Multi-Tech product offering, as it is in all of
Bison’s products. Gloss black powder coat finish - provides
the durability needed for demanding environments. Grease
lubricated for all position mounting.
Optional Features
Shafts: Hardened steel
Mounting: Face or base, any angle
Input Features: • 1/4” diameter, for
NEMA 23 mounting
• 3/8” or 1/2” diameter,
for NEMA 34 mounting
input speed
• 3000 RPM maximum
input speed
• Footplate
185 series
Part number: P125-100-9998
385 series
Part number: P125-287-0200
Additional Information
See pages 86-87 for additional
accessories
185 NEMA 23 Input
Part Number Ratio In-Lbs N-m lb kg lb kg oz-in-sec2 kg-m2 arc-min
060-185-0003 3.0065 20 2.26 200 90.9 25 11.4 4X10-4 6X10-6 60
GEAR
REDUCERS
060-185-0005 4.9573 32 3.62 200 90.9 25 11.4 9X10-5 6X10-7 60
060-185-0007 6.6667 45 5 200 90.9 25 11.4 7X10-5 5X10-7 60
060-185-0013 12.9411 90 10.16 200 90.9 25 11.4 5X10-5 4X10-7 60
060-185-0025 25.2381 90 10.16 200 90.9 25 11.4 4X10-5 3X10-7 60
060-185-0049 48.9916 150** 16.95 130 59.1 25 11.4 4X10-5 3X10-7 60
060-185-0096 95.5442 150** 16.95 150 68.2 25 11.4 3X10-5 4X10-7 60
385 NEMA 34 Input
Part Number Input Ratio In-Lbs N-m lb kg lb kg oz-in-sec2 kg-m2 arc-min
060-385-0003 3/8” Input Shaft 3.0625 88 9.94 170 77.3 40 18.2 1X10-3 9X10-6 60
060-385-0005 3/8” Input Shaft 4.5208 130 14.69 170 77.3 40 18.2 1X10-3 8X10-6 60
060-385-0011 3/8” Input Shaft 10.8889 300** 34 200 90.9 40 18.2 8X10-4 6X10-6 60
060-385-0015 3/8” Input Shaft 15.3013 300** 34 220 100 40 18.2 7X10-4 5X10-6 60
060-385-0021 3/8” Input Shaft 20.7958 300** 34 230 104.5 40 18.2 7X10-4 5X10-6 60
060-385-0030 3/8” Input Shaft 29.8324 300** 34 250 113.6 40 18.2 7X10-4 5X10-6 60
060-385-0050 3/8” Input Shaft 50.0889 350** 40 250 113.6 40 18.2 6X10-4 5X10-6 60
060-385-1003 1/2” Input Shaft 3.0625 88 9.94 170 77.3 40 18.2 1X10-3 9X10-6 60
060-385-1005 1/2” Input Shaft 4.5208 130 14.69 170 77.3 40 18.2 1X10-3 8X10-6 60
060-385-1011 1/2” Input Shaft 10.8889 300** 34 200 90.9 40 18.2 8X10-4 6X10-6 60
060-385-1015 1/2” Input Shaft 15.3013 300** 34 220 100 40 18.2 7X10-4 5X10-6 60
060-385-1021 1/2” Input Shaft 20.7958 300** 34 230 104.5 40 18.2 7X10-4 5X10-6 60
060-385-1030 1/2” Input Shaft 29.8324 300** 34 250 113.6 40 18.2 7X10-4 5X10-6 60
060-385-1050 1/2” Input Shaft 50.0889 350** 40 250 113.6 40 18.2 6X10-4 5X10-6 60
** Gear limited.
Rated Torque Radial Load Axial Load Inertia Backlash
Rated Torque Radial Load Axial Load Inertia Backlash
76
Gear & Engineering Corp.
ROBUSTICITY
3.38
Multi-Tech Reducers
185 NEMA 23
1.50
PILOT
DIA.
(4) #10-32 TAPPED HOLES SOCKET
HEAD SCREW ON A ø2.625 B.C.
385 NEMA 34
3.25
SQ.
2.88
PILOT DIA.
3.38
DIA.
0.25
DIA.
3/8"
1/2'
#10-32 UNF-2B TAP (4)
HOLES ON A 3.875 B.C.
3.12
0.18
or
0.21
1.42
.42
1/8 SQ. KEY
X 0.75 LONG
0.75
0.46
FLAT
0.50
DIA.
#10-32 TAP (4) PLACES
2.004.50
0.59
0.62
DIA.
3/16 SQ. KEY
1.00 LONG
0.86
4.74
3.60 SQ.
1.12
DIA.
C
L
2.65 TYP.
SQUARE
4.08
3.38
1/4-28 UNF-2B TAP (4) HOLES
Superior Seals
DID YOU
KNOW?
Since most Bison gearboxes are oil lubricated for life, we understand the importance
of precision ground seal areas. Bison shafts are hardened prior to grind in order to
minimize wear on the seal journal. After heat treat, shafts are plunge ground on an
automated grinding wheel, maintaining tight tolerances on grind diameter, lead,
surface finish, and roundness. This superior seal grind coupled with spring loaded lip
seals provides dependable, leak-free performance and the flexibility to mount all Bison
gearmotors in any orientation.
Perfection
DRIVEN
GEAR
REDUCERS
77
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