• Rugged cast iron housings, covers, and flanges provide superior strength and rigidity.
• Factory-filled with premium Mobil Glygoyle 460 polyalkalene glycol lubricant.
• Large oil capacity provides positive splash lubrication and superior cooling capability.
• Viton® double lip seals provide extended life through increased resistance to high temperature, abrasion and chemicals.
• O-rings on all bearing covers, eliminating gaskets, sealants and leaks.
• Oversized high-speed bearings, positively retained for frequent reversing and start/stop cycles. Tapered roller bearings on output shaft for high overhung and thrust load capacities.
• The unique quill seal guard protects the input seal from damage during motor installation.
• Bronze worm gear chill cast from high quality bronze for maximum strength, lubricity and superior life.
• All units are 100% run and leak tested at the factory to insure that you receive the highest quality product.
• Ultimate application flexibility with all-angle mounting provisions, the widest selection of accessory bases and flanges and the largest selection of stock reducer styles.

Dimensions

F	2.38
G	1.19
J	4.63 in
N	5.77
T	1.25
TAP Depth	0.75 in
K	2.31 in
H-Tap size	3/8 - 16 UNC in
Center Distance (in)	3 in
O	3.56 in
A	3.12
B	6.62
I	4.84 in
U	0.875 in
D	3.38
M	2.38
L	6.57 in
C	8.25 in
O*	3.31 in

Technical Specifications

Input Diameter (in)	0.875 in
Output Shaft Orientation	LR
Input HP @ 1750 RPM	6.049
Assembly	B-D
Input Style	Solid Shaft
Input Keyway	3/16 X 1.63 in
Input RPM	1,750
Output RPM	233
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Reducer Style	Worm - Right Angle
Shaft Seal Material	Viton
Thrust Rating - output shaft	1944
Model Code	B830
Output Style	D
Product Type	Right Angle
Ratio	7.5:1
No. of Gear Reductions	Single
Overhung Load	2,170
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Service Factor	1
Output Shaft Assembly Code	D
Input HP	6.879
Ratio Range	7.5:1
Reducer	Worm - Right Angle
Series Style	NH-B-D
Output Key	1/4 x 1.75
Output HP	6.421
Output Diameter (in)	1.250 in
Gear Type	Worm
Series Code	NH
Center Distance (in)	3.00
Mounting Style	Base
Reduction	Single
Output Shaft Direction	Double
Housing Material	Cast Iron
Output Shaft	Solid Shaft
Overhung Load Rating (Output Shaft(lb))	1,950 lb
Output Torque Rating (in-lb)	1519 in/lbs

General Specifications

UPC	690310071984
Weight	54.00 LB