Boston Gear

HF7721-40-B5-H-P19

700 Series 40:1 Ratio Hollow Assembly Single Reduction Worm Gear Reducer Without Base

Item #101794630

0.75 Input Motor hp
700 Series
2.06 in Center Distance
Single Reduction

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Product Details

0.75 Input Motor hp
700 Series
2.06 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

High loads, high ambient or operating temperatures, and unusually contaminated atmospheres will require more frequent relubrication.

Specifications

Output Configuration	Hollow Output
Rated Efficiency	75%
Output Torque	876 lb-in
Output Speed	43.8 rpm
Output (Shaft or Bore) Size	1 3/16 in
Box Height	6 3/8 in
Motor Application	General Purpose
Center Distance Code	721
Base to Centerline of Input Shaft	4 11/32 in
Standard	AGMA Service Class I
Center Distance	2.0625 in
Bolt Centers w/ Std. Base Kit (in)	6 3/8 x 4 11/16
Media Mapping Style	HF
Shaft Assembly Code	H
Series	700
Base to Centerline of Output Shaft	2 9/32 in
Bolt Centers w/ Vertical "J" Base Kit (in)	8.63 x 2.63
Base to Shaft Center Height w/Std. Base Kit	4.81 in
Reduction Type	Single
Output Bore Shaft Dia.	1.188 in
Output Torque Rating Range [Min]	750 lb-in, 85 Nm
Max. Thrust Load @ RPM	700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Frame Size	56C
Media Mapping Hollow Bore	P19
Media Mapping Output	H
Family Name	HF
Keyway Size	3/16 x 3/32
Torque Out @ 1750 rpm	876 in lb
Frame	56C
Bolt Center	5 in x 2 7/8 in
Fan Cooled	No
Base to Shaft Center Height w/Low Vert. Base Kit	3.13 in
Motor Frame Size	B556C
Material	Cast Iron, Standard Paint
Style	Right Angle
Bore Code	B5
Input Configuration	C-Face Quilled
Box Length	6 in
Base to Shaft Center Height w/Vert. "J" Base Kit	3.94 in
Output RPM @ Input RPM	44 rpm @ 1750 rpm
Input HP @ RPM	0.49 hp @ 1150 rpm, 0.81 hp @ 1750 rpm
Worm Position	Universal
Input Motor HP	0.75
Base Mounting Attachment	No Base
Input (Shaft or Bore) Size	5/8 in
Housing Material	Cast Iron
Use With	721
Box Width	4 45/64 in
Base to Shaft Center Height w/High Vert. Base Kit	4.88 in
Output Torque Rating Range [Max]	999 lb-in, 109 Nm
Max. Overhung Load @ 1750 rpm	700 lb/in
Output Shaft	Hollow
Max. Thrust Load @ 1150 rpm	700 lb/in
Max. Overhung Load @ RPM	700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Torque Out @ 1150 rpm	785 in lb
Bolt Center Length x Bolt Center Width	5 in x 2 7/8 in
Thermal Input Horsepower @ 1750 RPM	N/A
Max. Input HP @ 100 rpm	0.074 hp
HP @ RPM	0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm
Output Shaft Projection	Hollow Output
Washdown Duty	No
Lubrication	None
Bolt Centers w/ Vertical Base Kits (in)	8 3/8 x 4 7/8
Ratio	40:1
Output Torque @ RPM	785 in lb @ 1150 rpm, 876 in lb @ 1750 rpm
Output RPM @ 1750 rpm Input	43.75 rpm
Motor HP	1/2 hp
Input Power Rating	0.81 hp, 0.604 kW
Weight	26.1 LB
EAN or UPC	781711630488