• One-piece cast iron housings with single output cover design, CNC machined for precise component fit and alignment.
• 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.
• 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.
• 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.
• 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.
• Mounting dimensions are interchangeable with most industry standard reducers.

Dimensions

U	0.625 in
I	3.61 in
L	4.82 in
N	3
R	3.69 in
H	0.41 in
X	7 in
Center Distance (in)	2.06 in
C	6.38 in
D	2.28
V	0.44 in
Y	5.99 in
M	1.76
B	5.8
A	3.81

Technical Specifications

Mounting Style	Flange Mounted Hollow Output Bore
Input Style	Shaft
Reducer Style	Worm - Right Angle
Series Type	Cast Iron 800 Worm Gear Reducers
Input RPM	1,750
Output Shaft Assembly Code	HR
Series Style	GRL-FH-HR
Output Shaft Orientation	HR
Input HP	1.887
Output Key	1/4 X 2.50
Bore Code	20
Series Code	GRL
Output Style	HR
Output RPM	116
Output HP	1.661
Output Diameter (in)	1.250 in
Service Factor	1
Product Type	Right Angle
Ratio	15:1
Gear Type	Worm
Shaft Seal Material	Viton
Input Diameter (in)	0.625 in
Series	GR Series - Ironman Worm Gear Reducers
Assembly	FH-HR
Center Distance (in)	2.06
Input Keyway	3/16 X 1.38 in
No. of Gear Reductions	Single
Reducer	Worm - Right Angle
Product Line	GR Series - Ironman Worm Gear Reducers
Model Code	FH821
Ratio Range	15:1
Reduction	Single
Housing Material	Cast Iron
Output Shaft	Hollow Bore
Output Torque Rating (in-lb)	897 in/lbs

General Specifications

Weight

29.00 LB