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.
Output Shaft Projection
Hollow Output
Output Torque Rating Range [Max]
999 lb-in, 109 Nm
Output Speed
29.2 rpm
Input (Shaft or Bore) Size
5/8 in
Style
Right Angle
Motor Frame Size
B556C
Media Mapping Style
HF
Input Motor HP
0.50
Shaft Assembly Code
H
Keyway Size
3/16 x 3/32
Box Length
6 in
Base to Shaft Center Height w/Vert. "J" Base Kit
3.94 in
Max. Thrust Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Material
Cast Iron, Standard Paint
Max. Thrust Load @ 1150 rpm
700 lb/in
Input Configuration
C-Face Quilled
Worm Position
Universal
Max. Input HP @ 100 rpm
0.055 hp
Bolt Centers w/ Vertical "J" Base Kit (in)
8.63 x 2.63
Bolt Center Length x Bolt Center Width
5 in x 2 7/8 in
Center Distance Code
721
Series
700
Max. Overhung Load @ 1750 rpm
700 lb/in
Output (Shaft or Bore) Size
1 3/16 in
Motor Application
General Purpose
Output Torque @ RPM
730 in lb @ 1150 rpm, 826 in lb @ 1750 rpm
Base Mounting Attachment
No Base
Base to Shaft Center Height w/Std. Base Kit
4.81 in
Base to Centerline of Output Shaft
2 9/32 in
Base to Centerline of Input Shaft
4 11/32 in
Max. Overhung Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Fan Cooled
No
Output Bore Shaft Dia.
1.188 in
Output Shaft
Hollow
Bore Code
B5
Torque Out @ 1750 rpm
826 in lb
Motor HP
1/2 hp
Input HP @ RPM
0.34 hp @ 1150 rpm, 0.55 hp @ 1750 rpm
Bolt Centers w/ Std. Base Kit (in)
6 3/8 x 4 11/16
Family Name
HF
Bolt Center
5 in x 2 7/8 in
Base to Shaft Center Height w/High Vert. Base Kit
4.88 in
Bolt Centers w/ Vertical Base Kits (in)
8 3/8 x 4 7/8
Output Torque
826 lb-in
Reduction Type
Single
Washdown Duty
No
Standard
AGMA Service Class I
Ratio
60:1
Lubrication
None
Frame Size
56C
Frame
56C
Center Distance
2.0625 in
Use With
721
Media Mapping Hollow Bore
P19
HP @ RPM
0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm
Output Torque Rating Range [Min]
750 lb-in, 85 Nm
Thermal Input Horsepower @ 1750 RPM
N/A
Output Configuration
Hollow Output
Box Height
6 3/8 in
Media Mapping Output
H
Output RPM @ 1750 rpm Input
29.2 rpm
Box Width
4 45/64 in
Base to Shaft Center Height w/Low Vert. Base Kit
3.13 in
Input Power Rating
0.55 hp, 0.41 kW
Torque Out @ 1150 rpm
730 in lb
Output RPM @ Input RPM
29 rpm @ 1750 rpm
Housing Material
Cast Iron
Rated Efficiency
69%
Weight
26.1 LB
EAN or UPC
781711630549
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