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
Bronze worm gear is straddle mounted between heavy-duty tapered roller bearings to increase thrust and load capacities on size 713 to 760
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
When dismounting, the locking pins will still firmly engage the shaft thread even after the grub screws have been loosened. Light blows with a rubber hammer to the nut in the vicinity of the grub screws will loosen the pins. The nuts can then easily be
Torque Out @ 1150 rpm
790 in lb
Base to Shaft Center Height w/High Vert. Base Kit
4.88 in
Output RPM @ 1750 rpm Input
70 rpm
Style
Right Angle
Output Torque
875 lb-in
Base to Shaft Center Height w/Vert. "J" Base Kit
3.94 in
Base to Centerline of Input Shaft
4 11/32 in
Box Height
6 3/8 in
Rated Efficiency
84%
Fan Cooled
No
Max. Thrust Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Housing Material
Cast Iron
Output Torque @ RPM
790 in lb @ 1150 rpm, 875 in lb @ 1750 rpm
Output Torque Rating Range [Min]
750 lb-in, 85 Nm
Lubrication
None
Output RPM @ Input RPM
70 rpm @ 1750 rpm
Max. Overhung Load @ 1750 rpm
700 lb/in
Max. Overhung Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Family Name
F
Motor Application
General Purpose
Motor Frame Size
B556C
Bolt Center
5 in x 2 7/8 in
Max. Thrust Load @ 1150 rpm
700 lb/in
Max. Input HP @ 100 rpm
0.094 hp
Motor HP
1 hp
Bolt Centers w/ Std. Base Kit (in)
6 3/8 x 4 11/16
Shaft Assembly Code
G
Bore Code
B5
Media Mapping Output
G
Base Mounting Attachment
No Base
Thermal Input Horsepower @ 1750 RPM
N/A
Input Motor HP
1
Base
No
Torque Out @ 1750 rpm
875 in lb
Output Torque Rating Range [Max]
999 lb-in, 109 Nm
Washdown Duty
No
Input Power Rating
1.16 hp, 0.865 kW
Series
700
Material
Cast Iron, Standard Paint
Frame Size
56C
Output Bore Shaft Dia.
1 in
HP @ RPM
1 hp @ 1800 rpm
Input HP @ RPM
0.72 hp @ 1150 rpm, 1.16 hp @ 1750 rpm
Output Shaft
Solid
Center Distance
2.0625 in
Base to Shaft Center Height w/Std. Base Kit
4.81 in
Base to Shaft Center Height w/Low Vert. Base Kit
3.13 in
Output Speed
70 rpm
Box Length
6 in
Use With
721
Ratio
25:1
Media Mapping Style
F
Box Width
5 3/16 in
Input (Shaft or Bore) Size
5/8 in
Output (Shaft or Bore) Size
1 in
Output Configuration
Left Output
Output Shaft Projection
Solid Left Output
Center Distance Code
721
Bolt Center Length x Bolt Center Width
5 in x 2 7/8 in
Reduction Type
Single
Frame
56C
Bolt Centers w/ Vertical Base Kits (in)
8 3/8 x 4 7/8
Worm Position
Universal
Input Configuration
C-Face Quilled
Base to Centerline of Output Shaft
2.28 in
Standard
AGMA Service Class I
Bolt Centers w/ Vertical "J" Base Kit (in)
8.63 x 2.63
Weight
24.1 LB
EAN or UPC
781711519660
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