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

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