• 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

AJ	5.88
LL	1.98 in
BF	0.41
U	0.625 in
V	1.44 in
L	4.45 in
AE2	0.56
AG	4.29
P	1.38 in
D	2.06
AF	0.19
AE1	0.551
BE	0.38 in
Center Distance (in)	1.75 in
H	0.53 in
B	4.5
AB	3.44
AA	7.44
LM	6.7
T	1
G	1.82
I	3.24 in
AK	4.5
BD	6.5

Technical Specifications

Input Diameter (in)	0.625 in
Center Distance (in)	1.75
Series Style	NH-HM-H1
Gear Type	Worm
Motor Frame Size	140TC
Frame Size	140TC
Input HP	1.046
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Output Shaft Assembly Code	H1
Service Factor	1
Ratio	20:1
Input Keyway (C Face)	3/16 x 3/32
Thrust Rating - output shaft	1144
Output RPM	87
Input Bore (C Face)	0.875
Input Style	Flexible Coupling Input
Output Style	H1
Shaft Seal Material	Viton
Output Key	1/4 X 2.50
Input RPM	1,750
Reducer Style	Worm - Right Angle
Output HP	0.875
Mounting Style	Shaft Mount
Series Code	NH
Input HP @ 1750 RPM	1.046
Model Code	HM818
Output Diameter (in)	1 in
Bore Code	16
Ratio Range	20:1
Reducer	Worm - Right Angle
Input Keyway	3/16 X 1.38 in
Output Shaft Orientation	H1
Product Type	Right Angle
No. of Gear Reductions	Single
Assembly	HM-H1
Reduction	Single
Output Shaft Direction	H1
Output Torque Rating (in-lb)	630 in/lbs
Overhung Load Rating (Output Shaft(lb))	1,250 lb
Housing Material	Cast Iron
Output Shaft	Hollow Bore

General Specifications

UPC	690310060551
Weight	23.00 LB