• 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

R	3.5 in
BD	6.5
Y	5.56 in
X	6.25 in
BE	0.38 in
AJ	5.88
U	0.625 in
LL	2.12 in
AK	4.5
N	2.37
B	4.5
C	6 in
D	2.31
BF	0.41
LM	7.07
L	4.82 in
H	0.34 in
V	1.94 in
Center Distance (in)	2.06 in
I	3.61 in
T	1.5
A	2.5

Technical Specifications

Reducer Style	Worm - Right Angle
Input HP	1.584
Output RPM	87
Output HP	1.338
Output Key	3/8 x 3.00
Input RPM	1,750
Reducer	Worm - Right Angle
Ratio	20:1
Output Shaft Orientation	HR
Input Style	C-Face Coupled
Assembly	FHM
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Frame Size	56C
Model Code	FHM821
Service Factor	1
Output Shaft Assembly Code	HR
Product Type	Right Angle
Input Keyway (C Face)	3/16 x 3/32
Center Distance (in)	2.06
Output Diameter (in)	1.438 in
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Input Keyway	3/16 X 1.38 in
Motor Frame Size	56C
No. of Gear Reductions	Single
Output Style	HR
Mounting Style	Flange Mounted Hollow Output Bore
Input Diameter (in)	0.625 in
Ratio Range	20:1
Gear Type	Worm
Bore Code	23
Series Style	NH-FHM-HR
Shaft Seal Material	Viton
Input Bore (C Face)	0.625
Reduction	Single
Output Torque Rating (in-lb)	964 in/lbs
Housing Material	Cast Iron
Output Shaft	Hollow Bore

General Specifications

Weight

29.00 LB