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