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

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