Bison Gear & Engineering 881 Series Catalog Page
NEW!
881 Series
56C Parallel Shaft Gear Reducer
Key Features
• High Performance Parallel Shaft Gear Reducer
• Lighter weight, more power
• Ratios: 3.8:1 - 142.9:1
• Input Power: 1/4 - 1-1/2 HP
• Torque Rating: 32 - 1195 in-lbs
• Induction hardened helical and spur gears
• Gear efficiency 95-97%
• Mounting pattern interchanges with several popular gear
reducers - Face and foot mounting options available
• Adapts to 56C motors
• Lubricated for life - sealed and gasketed
• Made in USA
The NEW and IMPROVED 881 Series parallel shaft gear reducer from
Bison provides the power required for applications in a multitude of different
industries. Using a newly designed precision machined die-cast aluminum
housing, the 881 gear reducer can be aligned seamlessly to drive most
OEM equipment. The reducer is equipped with high quality helical and spur
gearing manufactured by Bison for long-lasting performance and unmatched
efficiency.
The 881 series adapts to NEMA 56C motors. An optional footplate is
available as an accessory for improved mounting versatility.
The 881 series parallel shaft gear reducers
comprehensive In-Stock, Instant-Ship (ISIS)
distribution partners and offers same day shipment for orders received
before noon (Central Time).
are part of Bison Gear’s
program that supports Bison’s
OPTIONAL FOOTPLATE ALLOWS SAME MOUNTING DIMENSIONS AS
LEESON P1100 SERIES & BISON 480 SERIES GEARMOTORS
APPLICATIONS
• Conveyors
• Industrial machinery equipment
• Food processing machinery
• Waste water treatment equipment
• Pumps
• Mixers and agitators
• Chemical processing equipment
• Packaging and bottling machinery
881 Series
56C Parallel Shaft Gear Reducer
Continuous Duty Ratings
Part Number
FACE MOUNT FOOT MOUNT (RPM)***
060-881-2143 060-881-2143FPM 142.9 3 12 992** 992 1383 15.6
060-881-2079 060-881-2079FPM 79 3 22 642 855 1195** 1195 1165 15.6
060-881-2053 060-881-2053FPM 53.9 3 33 438 584 876 1100** 1100 942 15.6
060-881-2041 060-881-2041FPM 41.1 3 42 334 445 668 1002 1139 858 15.6
060-881-2029 060-881-2029FPM 27.8 3 60 226 301 452 678 904 1137 838 15.6
060-881-2018 060-881-2018FPM 17.8 2 97 150 200 301 451 602 902** 902 680 15.6
060-881-2012 060-881-2012FPM 11.8 2 146 100 133 199 299 399 598 692 573 15.6
060-881-2007 060-881-2007FPM 6.8 2 253 57 77 115 172 230 345 399 506 15.6
060-881-2005 060-881-2005FPM 5.0 2 339 43 57 86 129 172 258 275 467
060-881-2004 060-881-2004FPM 3.8 2 457 32 43 64 96 128 193 204 425 15.6
Ratio Stages
Schematics
Output
Speed
Torque (in-lbs.) at listed HP Max Torque OHL*
1/4 HP 1/3 HP 1/2 HP 3/4 HP 1 HP 1.5 HP
* Maximum overhung load on center of output shaft
** Output torque is gear limited
*** RPM based on 1725 input
Note: Product weights do NOT include footplate.
(in-lbs) (lbs)
Shipping
Wt.
15.6
Schematics with Footplate
Optional Mounting Accessories
Part Number Description
P125-880-0003 “L” Bracket
P125-880-0004 Foot plate
Foot plate available as stand alone
item or included with FPM unit.
For questions on mounting,
contact a Bison Application Engineer.
“L” Bracket Drawing
Gear & Engineering Corp.
©2014 BISON Gear & Engineering Corp., All Rights Reserved 0014020414
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