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.
Motor Frame Size
B556C
Bolt Centers w/ Vertical "J" Base Kit (in)
9.19 x 2.88
Reduction Type
Single
Use With
724
Torque Out @ 1750 rpm
1128 in lb
Ratio
60:1
Frame
56C
Output Torque
1128 lb-in
Fan Cooled
No
Output Shaft
Hollow
Lubrication
None
Frame Size
56C
Bolt Centers w/ Vertical Base Kits (in)
8.94 x 4.88
Output Configuration
Hollow Output
Keyway Size
3/16 x 3/32
Material
Cast Iron, Standard Paint
Box Height
6 15/16 in
Torque Out @ 1150 rpm
1040 in lb
Base to Centerline of Input Shaft
4 7/8 in
Base Mounting Attachment
No Base
Box Width
4 15/16 in
Base to Centerline of Output Shaft
2 1/2 in
Input Power Rating
0.73 hp, 0.544 kW
Base to Shaft Center Height w/Low Vert. Base Kit
3.38 in
Max. Overhung Load @ 1750 rpm
900 lb/in
Max. Input HP @ 100 rpm
0.073 hp
Center Distance
2.375 in
Bolt Centers w/ Std. Base Kit (in)
7 1/16 x 4 7/8
Output Shaft Projection
Hollow Output
Base to Shaft Center Height w/High Vert. Base Kit
5 1/4 in
Input Configuration
C-Face Quilled
Output Torque Rating Range [Max]
1499 lb-in, 159 Nm
Box Length
6 3/8 in
Output Bore Shaft Dia.
1.188 in
Bolt Center
5 in x 2 7/8 in
Standard
AGMA Service Class I
Rated Efficiency
71%
Housing Material
Cast Iron
Media Mapping Output
H
Style
Right Angle
HP @ RPM
0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm
Input HP @ RPM
0.49 hp @ 1150 rpm, 0.73 hp @ 1750 rpm
Media Mapping Hollow Bore
P19
Max. Thrust Load @ RPM
900 lb/in @ 1150 rpm, 900 lb/in @ 1750 rpm
Motor Application
General Purpose
Family Name
HF
Output Speed
29.2 rpm
Output RPM @ 1750 rpm Input
29.2 rpm
Input Motor HP
0.75
Max. Thrust Load @ 1150 rpm
900 lb/in
Series
700
Output (Shaft or Bore) Size
1 3/16 in
Bolt Center Length x Bolt Center Width
5 in x 2 7/8 in
Washdown Duty
No
Output Torque Rating Range [Min]
1000 lb-in, 110 Nm
Thermal Input Horsepower @ 1750 RPM
N/A
Motor HP
0.5 hp
Bore Code
B5
Base to Shaft Center Height w/Std. Base Kit
5.19 in
Base to Shaft Center Height w/Vert. "J" Base Kit
4.06 in
Output RPM @ Input RPM
29 rpm @ 1750 rpm
Input (Shaft or Bore) Size
5/8 in
Max. Overhung Load @ RPM
900 lb/in @ 1150 rpm, 900 lb/in @ 1750 rpm
Center Distance Code
724
Shaft Assembly Code
H
Output Torque @ RPM
1040 in lb @ 1150 rpm, 1128 in lb @ 1750 rpm
Media Mapping Style
HF
Worm Position
Universal
Weight
31.1 LB
EAN or UPC
781711630662
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