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
Some chemicals can cause damage
Polycarbonate bowls should not be exposed to chlorinated hydro-carbons, ketones, esters and certain alcohols
Cannot be used in air systems where compressors are lubricated with fire-resistant fluids, such as phosphate ester and di-ester types
Polycarbonate bowls, being transparent and tough, are ideal for use with filters and lubricators. They are suitable for use in normal industrial environments, but should not be located in areas where they could be subjected to direct sunlight, an impact
Base to Centerline of Input Shaft
2 15/16 in
Media Mapping Output
G
Bolt Center
4 3/16 in x 2 3/4 in
Bolt Centers w/ Std. Base Kit (in)
5 3/4 x 4 1/2
Lubrication
None
Input Power Rating
0.23 hp, 0.172 kW
Motor Application
General Purpose
Input Configuration
C-Face Coupled
Base to Shaft Center Height w/Vert. "J" Base Kit
3.5 in
Standard
AGMA Service Class I
Style
Parallel Shaft
Media Mapping Style
RFWA
Base to Shaft Center Height w/High Vert. Base Kit
4.38 in
Bolt Centers w/ Vertical Base Kits (in)
7.38 x 4.00
Max. Overhung Load @ 1750 rpm
500 lb/in
Base to Shaft Center Height w/Std. Base Kit
4.38 in
Input (Shaft or Bore) Size
1/2 in
Shaft Assembly Code
G
Output Speed
17.5 rpm
Worm Position
Universal¦Parallel
Box Height
5 3/4 in
Output Bore Shaft Dia.
0.875 in
Reduction Type
Double
Keyway Size
1/8 x 1/16
Motor Frame Size
B442CZ
Output Torque Rating Range [Max]
749 lb-in, 84 Nm
Box Width
8 7/8 in
Output Shaft
Solid
Center Distance
1.75 in
Output Torque
570 lb-in
Bore Code
B4
Base to Shaft Center Height w/Low Vert. Base Kit
3 in
Box Length
5 1/16 in
Base to Centerline of Output Shaft
3 11/16 in
Torque Out @ 1150 rpm
N/A
Ratio
100:1
Output Torque Rating Range [Min]
500 lb-in, 60 Nm
Base Mounting Attachment
No Base
HP @ RPM
0.25 hp @ 1800 rpm
Input Motor HP
0.25
Rated Efficiency
70%
Family Name
RFWA
Material
Cast Iron, Standard Paint
Bolt Centers w/ Vertical "J" Base Kit (in)
7.63 x 2.50
Center Distance Code
718
Output (Shaft or Bore) Size
7/8 in
Thermal Input Horsepower @ 1750 RPM
N/A
Motor HP
1/4 hp
Torque Out @ 1750 rpm
570 in lb
Frame
42CZ
Frame Size
42CZ
Output Configuration
Left Output
Washdown Duty
No
Fan Cooled
No
Housing Material
Cast Iron
Output RPM @ 1750 rpm Input
17.5 rpm
Max. Thrust Load @ 1150 rpm
500 lb/in
Weight
34.1 LB
EAN or UPC
781711530238
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