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
Drives used in a vertical mounting application may require additional pipe plugs and/or grease fittings for proper lubrication and are considered special.
High loads, high ambient or operating temperatures, and unusually contaminated atmospheres will require more frequent relubrication.
Frame
56C
Base to Shaft Center Height w/Low Vert. Base Kit
3.13 in
Standard
AGMA Service Class I
Fan Cooled
No
Worm Position
Universal
Input Configuration
C-Face Quilled
Output Shaft
Hollow
Max. Overhung Load @ 1750 rpm
700 lb/in
Motor HP
0.75 hp
Rated Efficiency
81%
Torque Out @ 1150 rpm
782 in lb
Base to Centerline of Input Shaft
4 11/32 in
Motor Application
General Purpose
Output RPM @ Input RPM
88 rpm @ 1750 rpm
Input HP @ RPM
0.86 hp @ 1150 rpm, 1.4 hp @ 1750 rpm
Bore Code
B5
Shaft Assembly Code
H
Base to Centerline of Output Shaft
2 9/32 in
Output Shaft Projection
Hollow Output
Bolt Centers w/ Vertical Base Kits (in)
8 3/8 x 4 7/8
Output (Shaft or Bore) Size
1 1/4 in
Box Height
6 3/8 in
Style
Right Angle
Media Mapping Hollow Bore
P20
Base Mounting Attachment
No Base
Media Mapping Style
HF
Output Speed
58.3 rpm
Keyway Size
3/16 x 3/32
Output Bore Shaft Dia.
1.25 in
Bolt Centers w/ Std. Base Kit (in)
6 3/8 x 4 11/16
Max. Thrust Load @ 1150 rpm
700 lb/in
Output Torque @ RPM
782 in lb @ 1150 rpm, 892 in lb @ 1750 rpm
Material
Cast Iron, Standard Paint
Family Name
HF
Output Torque
871 lb-in
Washdown Duty
No
Max. Thrust Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Input Motor HP
1
Output RPM @ 1750 rpm Input
87.5 rpm
Center Distance
2.0625 in
Series
700
Torque Out @ 1750 rpm
892 in lb
Motor Frame Size
B556C
Center Distance Code
721
Output Torque Rating Range [Max]
999 lb-in, 109 Nm
Bolt Center Length x Bolt Center Width
5 in x 2 7/8 in
Media Mapping Output
H
Bolt Centers w/ Vertical "J" Base Kit (in)
8.63 x 2.63
Max. Overhung Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Output Configuration
Hollow Output
Frame Size
56C
Input Power Rating
0.99 hp, 0.738 kW
Base to Shaft Center Height w/Std. Base Kit
4.81 in
Base to Shaft Center Height w/Vert. "J" Base Kit
3.94 in
Ratio
30:1
Box Length
6 in
Box Width
4 45/64 in
Reduction Type
Single
Use With
721
Input (Shaft or Bore) Size
5/8 in
Lubrication
None
Housing Material
Cast Iron
Bolt Center
5 in x 2 7/8 in
Base to Shaft Center Height w/High Vert. Base Kit
4.88 in
Thermal Input Horsepower @ 1750 RPM
N/A
Max. Input HP @ 100 rpm
0.11 hp
HP @ RPM
1 hp @ 1800 rpm
Output Torque Rating Range [Min]
750 lb-in, 85 Nm
Weight
26.1 LB
EAN or UPC
781711630433
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