Our standard 700 Series - the heart of Boston Gear's speed reducer product line - has been serving many industries reliably for over 40 years. Its proven modular design has set the industry standard for performance and is the most imitated product in today's worm gear speed reducer market.
features
Large oil reservoir provides efficient heat dissipation and lubrication for longer life
Housing is straddle milled top and bottom for precise alignment
Rugged housing fabricated of fine-grained cast iron for maximum strength and greater precision during worm and gear alignment
High strength steel output shaft ensures capacity for high torque
Pipe plugs allow easy fill, level and drain in any mounting position
Super finished oil seal diameters on both input and output shafts extend seal life
caution
Motors misapplied in hazardous environments can cause a fire or explosion, resulting in destruction of property, serious injury or death
Only the end user or a qualified underwriter is to identify and select the proper class, group, division and temperature code motor to meet the requirements of each installation
Service center personnel can advise what listings and approvals motors carry, but cannot evaluate nor recommend what motors may be suitable for use in hazardous environments
Motor Frame Size
B556C
Material
Cast Iron, Standard Paint
Use With
710
Frame Size
56C
Motor HP
1/4 hp
Torque Out @ 1750 rpm
149 in lb
Media Mapping Output
H
Base to Shaft Center Height w/Std. Base Kit
2 3/4 in
Reduction Type
Single
HP @ RPM
0.125 hp @ 1200 rpm, 0.1666667 hp @ 1800 rpm
Bore Code
B5
Input HP @ RPM
0.14 hp @ 1150 rpm, 0.27 hp @ 1750 rpm
Output Speed
87.5 rpm
Shaft Assembly Code
H
Housing Material
Cast Iron
Fan Cooled
No
Style
Right Angle
Base Mounting Attachment
No Base
Input Motor HP
0.25
Output Torque @ RPM
129 in lb @ 1150 rpm, 149 in lb @ 1750 rpm
Box Length
4 1/4 in
Output Shaft Projection
Solid Double Projecting Output
Max. Input HP @ 100 rpm
0.017 hp
Motor Application
General Purpose
Output Torque
149 lb-in
Output RPM @ 1750 rpm Input
87.5 rpm
Output RPM @ Input RPM
88 rpm @ 1750 rpm
Output Torque Rating Range [Min]
100 lb-in, 10 Nm
Box Width
3 11/32 in
Bolt Centers w/ Std. Base Kit (in)
3 3/4 x 2 7/8
Bolt Centers w/ Vertical Base Kits (in)
5.13 x 2.31
Input Power Rating
0.27 hp, 0.201 kW
Standard
AGMA Service Class I
Base to Centerline of Input Shaft
2 5/16 in
Output Bore Shaft Dia.
0.5 in
Max. Overhung Load @ RPM
150 lb/in @ 1150 rpm, 150 lb/in @ 1750 rpm
Family Name
F
Washdown Duty
No
Bolt Center Length x Bolt Center Width
2 5/8 in x 1 11/16 in
Series
700
Max. Thrust Load @ 1150 rpm
200 lb/in
Base to Centerline of Output Shaft
1.31 in
Keyway Size
3/16 x 3/32
Lubrication
None
Output Configuration
Left & Right Output
Ratio
20:1
Max. Overhung Load @ 1750 rpm
150 lb/in
Base
No
Rated Efficiency
77%
Box Height
3 5/8 in
Input (Shaft or Bore) Size
5/8 in
Input Configuration
C-Face Quilled
Thermal Input Horsepower @ 1750 RPM
N/A
Output (Shaft or Bore) Size
1/2 in
Base to Shaft Center Height w/High Vert. Base Kit
2.94 in
Torque Out @ 1150 rpm
129 in lb
Max. Thrust Load @ RPM
200 lb/in @ 1150 rpm, 200 lb/in @ 1750 rpm
Media Mapping Style
F
Output Shaft
Solid
Bolt Center
2 5/8" x 1 11/16"
Center Distance
1 in
Output Torque Rating Range [Max]
299 lb-in, 34 Nm
Worm Position
Universal
Frame
56C
Center Distance Code
710
Weight
10.1 LB
EAN or UPC
781711598375
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