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

Auto Replenish

each One-time purchase

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