• 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

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

Technical Specifications

Shaft Seal Material	Viton
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Ratio Range	10:1
Output Shaft Assembly Code	D
Output Diameter (in)	1.250 in
Model Code	B830
Output Style	D
Reducer Style	Worm - Right Angle
Input Diameter (in)	0.875 in
Input RPM	1,750
Thrust Rating - output shaft	2147
Ratio	10:1
Series Style	NH-B-D
Assembly	B-D
Overhung Load	2,170
Input HP @ 1750 RPM	5.45
Input Style	Solid Shaft
Output HP	5.655
Output Shaft Orientation	LR
Input HP	6.151
Reducer	Worm - Right Angle
Output Key	1/4 x 1.75
Input Keyway	3/16 X 1.63 in
Series Code	NH
Product Type	Right Angle
Output RPM	175
Mounting Style	Base
Gear Type	Worm
Service Factor	1
No. of Gear Reductions	Single
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Center Distance (in)	3.00
Reduction	Single
Output Shaft Direction	Double
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	1802 in/lbs
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	1,950 lb

General Specifications

UPC	690310071991
Weight	54.00 LB