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.
Base to Shaft Center Height w/Std. Base Kit
4.81 in
Reduction Type
Single
Use With
721
Max. Overhung Load @ 1750 rpm
700 lb/in
Box Width
4 45/64 in
Max. Thrust Load @ 1150 rpm
700 lb/in
Worm Position
Universal
Motor Application
General Purpose
Keyway Size
3/16 x 3/32
Bolt Center Length x Bolt Center Width
5 in x 2 7/8 in
Output Torque
826 lb-in
Input (Shaft or Bore) Size
5/8 in
Ratio
60:1
Center Distance Code
721
Max. Input HP @ 100 rpm
0.055 hp
Shaft Assembly Code
H
Bolt Centers w/ Vertical Base Kits (in)
8 3/8 x 4 7/8
Output Shaft Projection
Hollow Output
Lubrication
None
Family Name
HF
Base to Shaft Center Height w/Low Vert. Base Kit
3.13 in
Max. Thrust Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Frame Size
56C
Series
700
Box Length
6 in
Output Bore Shaft Dia.
1 in
Frame
56C
Input Motor HP
0.50
Bore Code
B5
Media Mapping Style
HF
Base to Shaft Center Height w/Vert. "J" Base Kit
3.94 in
Bolt Centers w/ Vertical "J" Base Kit (in)
8.63 x 2.63
Box Height
6 3/8 in
Input Power Rating
0.55 hp, 0.41 kW
Output Torque Rating Range [Min]
750 lb-in, 85 Nm
Torque Out @ 1150 rpm
730 in lb
Output RPM @ Input RPM
29 rpm @ 1750 rpm
Center Distance
2.0625 in
Input HP @ RPM
0.34 hp @ 1150 rpm, 0.55 hp @ 1750 rpm
Base Mounting Attachment
No Base
Torque Out @ 1750 rpm
826 in lb
Output Torque @ RPM
730 in lb @ 1150 rpm, 826 in lb @ 1750 rpm
Base to Centerline of Output Shaft
2 9/32 in
Motor Frame Size
B556C
Output Configuration
Hollow Output
Thermal Input Horsepower @ 1750 RPM
N/A
Housing Material
Cast Iron
Media Mapping Hollow Bore
P16
Media Mapping Output
H
Standard
AGMA Service Class I
Bolt Center
5 in x 2 7/8 in
Style
Right Angle
Base to Shaft Center Height w/High Vert. Base Kit
4.88 in
Output Speed
29.2 rpm
Output Torque Rating Range [Max]
999 lb-in, 109 Nm
Rated Efficiency
69%
Washdown Duty
No
Motor HP
1/2 hp
Output RPM @ 1750 rpm Input
29.2 rpm
Output (Shaft or Bore) Size
1 in
Max. Overhung Load @ RPM
700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
HP @ RPM
0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm
Base to Centerline of Input Shaft
4 11/32 in
Material
Cast Iron, Standard Paint
Output Shaft
Hollow
Input Configuration
C-Face Quilled
Fan Cooled
No
Bolt Centers w/ Std. Base Kit (in)
6 3/8 x 4 11/16
Weight
26.1 LB
EAN or UPC
781711630532
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