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
Ratio
100:1
Input (Shaft or Bore) Size
1/2 in
Box Length
5 1/16 in
Material
Cast Iron, Standard Paint
Frame
42CZ
Motor Application
General Purpose
Center Distance
1.75 in
Fan Cooled
No
Worm Position
Universal¦Parallel
Output Speed
17.5 rpm
Rated Efficiency
70%
Base Mounting Attachment
No Base
Output RPM @ 1750 rpm Input
17.5 rpm
Keyway Size
1/8 x 1/16
Thermal Input Horsepower @ 1750 RPM
N/A
Bolt Centers w/ Std. Base Kit (in)
5 3/4 x 4 1/2
Box Height
5 3/4 in
Reduction Type
Double
Standard
AGMA Service Class I
Base to Centerline of Input Shaft
2 15/16 in
Media Mapping Style
RFWA
Input Motor HP
0.25
Housing Material
Cast Iron
Output Torque
570 lb-in
Media Mapping Output
G
Output Torque Rating Range [Max]
749 lb-in, 84 Nm
Output Configuration
Left Output
Base to Centerline of Output Shaft
3 11/16 in
Base to Shaft Center Height w/Std. Base Kit
4.38 in
Input Power Rating
0.23 hp, 0.172 kW
Motor HP
1/4 hp
Input Configuration
C-Face Coupled
Frame Size
42CZ
Motor Frame Size
B442CZ
Bolt Centers w/ Vertical "J" Base Kit (in)
7.63 x 2.50
Shaft Assembly Code
G
Output (Shaft or Bore) Size
7/8 in
Max. Thrust Load @ 1150 rpm
500 lb/in
Output Torque Rating Range [Min]
500 lb-in, 60 Nm
HP @ RPM
0.25 hp @ 1800 rpm
Output Bore Shaft Dia.
0.875 in
Center Distance Code
718
Box Width
8 7/8 in
Washdown Duty
No
Bolt Centers w/ Vertical Base Kits (in)
7.38 x 4.00
Family Name
RFWA
Torque Out @ 1150 rpm
N/A
Lubrication
None
Torque Out @ 1750 rpm
570 in lb
Max. Overhung Load @ 1750 rpm
500 lb/in
Bore Code
B4
Style
Parallel Shaft
Base to Shaft Center Height w/Low Vert. Base Kit
3 in
Base to Shaft Center Height w/High Vert. Base Kit
4.38 in
Bolt Center
4 3/16 in x 2 3/4 in
Output Shaft
Solid
Base to Shaft Center Height w/Vert. "J" Base Kit
3.5 in
Weight
34.1 LB
EAN or UPC
781711530238
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