Boston Gear

HF7718-20-B5-H-P16

700 Series 20:1 Ratio Hollow Assembly Single Reduction Worm Gear Reducer Without Base

Item #101817836

1 Input Motor hp
700 Series
1.75 in Center Distance
Single Reduction

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Product Details

1 Input Motor hp
700 Series
1.75 in Center Distance
Single Reduction

description

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
Internal baffles ensure positive, leak-free venting
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

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

Specifications

Motor Application	General Purpose
Base to Centerline of Input Shaft	3 13/16 in
Frame	56C
Torque Out @ 1150 rpm	525 in lb
HP @ RPM	0.75 hp @ 1800 rpm
Fan Cooled	No
Family Name	HF
Use With	718
Base to Centerline of Output Shaft	2 1/16 in
Rated Efficiency	84%
Max. Overhung Load @ RPM	500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm
Base to Shaft Center Height w/High Vert. Base Kit	4.38 in
Media Mapping Hollow Bore	P16
Output Shaft Projection	Hollow Output
Max. Input HP @ 100 rpm	0.08 hp
Base to Shaft Center Height w/Low Vert. Base Kit	3 in
Base to Shaft Center Height w/Vert. "J" Base Kit	3.5 in
Max. Overhung Load @ 1750 rpm	500 lb/in
Bolt Centers w/ Vertical Base Kits (in)	7.38 x 4.00
Shaft Assembly Code	H
Style	Right Angle
Base Mounting Attachment	No Base
Output Torque @ RPM	525 in lb @ 1150 rpm, 590 in lb @ 1750 rpm
Input (Shaft or Bore) Size	5/8 in
Output Torque Rating Range [Max]	749 lb-in, 84 Nm
Torque Out @ 1750 rpm	590 in lb
Max. Thrust Load @ RPM	500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm
Standard	AGMA Service Class I
Center Distance Code	718
Base to Shaft Center Height w/Std. Base Kit	4.38 in
Box Height	5 3/4 in
Bolt Center	4 3/16 in x 2 3/4 in
Washdown Duty	No
Bolt Centers w/ Std. Base Kit (in)	5 3/4 x 4 1/2
Max. Thrust Load @ 1150 rpm	500 lb/in
Output Configuration	Hollow Output
Bolt Center Length x Bolt Center Width	4 3/16 in x 2 3/4 in
Input HP @ RPM	0.58 hp @ 1150 rpm, 0.97 hp @ 1750 rpm
Housing Material	Cast Iron
Media Mapping Style	HF
Material	Cast Iron, Standard Paint
Output Bore Shaft Dia.	1 in
Output RPM @ 1750 rpm Input	87.5 rpm
Output Speed	87.5 rpm
Input Configuration	C-Face Quilled
Media Mapping Output	H
Worm Position	Universal
Input Power Rating	0.97 hp, 0.723 kW
Output Shaft	Hollow
Thermal Input Horsepower @ 1750 RPM	N/A
Series	700
Center Distance	1.75 in
Box Length	5 1/2 in
Bolt Centers w/ Vertical "J" Base Kit (in)	7.63 x 2.50
Lubrication	None
Output RPM @ Input RPM	88 rpm @ 1750 rpm
Box Width	4 37/64 in
Motor Frame Size	B556C
Output Torque	590 lb-in
Bore Code	B5
Reduction Type	Single
Input Motor HP	1
Keyway Size	3/16 x 3/32
Ratio	20:1
Motor HP	3/4 hp
Output Torque Rating Range [Min]	500 lb-in, 60 Nm
Frame Size	56C
Output (Shaft or Bore) Size	1 in
Weight	20.1 LB
EAN or UPC	781711630181