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
Input Motor HP
1
Output Bore Shaft Dia.
1 in
Output Torque Rating Range [Max]
999 lb-in, 109 Nm
HP @ RPM
1 hp @ 1800 rpm
Output (Shaft or Bore) Size
1 in
Family Name
F
Max. Input HP @ 100 rpm
0.094 hp
Base to Centerline of Input Shaft
4 11/32 in
Worm Position
Universal
Motor Frame Size
B556C
Output RPM @ Input RPM
70 rpm @ 1750 rpm
Center Distance Code
721
Box Length
6 in
Max. Thrust Load @ 1150 rpm
700 lb/in
Base Mounting Attachment
No Base
Ratio
25:1
Reduction Type
Single
Center Distance
2.0625 in
Standard
AGMA Service Class I
Fan Cooled
No
Torque Out @ 1150 rpm
790 in lb
Base
No
Output Torque Rating Range [Min]
750 lb-in, 85 Nm
Box Width
5 3/16 in
Max. Overhung Load @ 1750 rpm
700 lb/in
Bolt Center
5 in x 2 7/8 in
Use With
721
Max. Overhung Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Bolt Centers w/ Vertical "J" Base Kit (in)
8.63 x 2.63
Washdown Duty
No
Rated Efficiency
84%
Motor HP
1 hp
Output Torque @ RPM
790 in lb @ 1150 rpm, 875 in lb @ 1750 rpm
Material
Cast Iron, Standard Paint
Output Shaft
Solid
Media Mapping Style
F
Output RPM @ 1750 rpm Input
70 rpm
Base to Shaft Center Height w/Vert. "J" Base Kit
3.94 in
Bolt Centers w/ Std. Base Kit (in)
6 3/8 x 4 11/16
Frame
56C
Thermal Input Horsepower @ 1750 RPM
N/A
Base to Centerline of Output Shaft
2.28 in
Series
700
Bore Code
B5
Bolt Centers w/ Vertical Base Kits (in)
8 3/8 x 4 7/8
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
Input Power Rating
1.16 hp, 0.865 kW
Input Configuration
C-Face Quilled
Output Configuration
Left Output
Frame Size
56C
Input HP @ RPM
0.72 hp @ 1150 rpm, 1.16 hp @ 1750 rpm
Max. Thrust Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Box Height
6 3/8 in
Output Torque
875 lb-in
Media Mapping Output
G
Housing Material
Cast Iron
Style
Right Angle
Motor Application
General Purpose
Output Shaft Projection
Solid Left Output
Output Speed
70 rpm
Input (Shaft or Bore) Size
5/8 in
Base to Shaft Center Height w/High Vert. Base Kit
4.88 in
Bolt Center Length x Bolt Center Width
5 in x 2 7/8 in
Lubrication
None
Torque Out @ 1750 rpm
875 in lb
Shaft Assembly Code
G
Weight
24.1 LB
EAN or UPC
781711519660
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