• 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

BE1	0.5 in
F	4
L1	9.82 in
AJ	7.25
BD	9
T	1.938
J	7 in
C	8.88 in
AD	6.53
BF	0.53
D	3.25
U	0.875 in
Center Distance (in)	3 in
AG	7.5
AE2	0.36
L	6.57 in
AE1	0.6
G	2
I	4.84 in
AK	8.5
V	2.756 in
B	8.12

Technical Specifications

Bore Code	31
Input Keyway (C Face)	1/4 x 1/8
Input Style	Flexible Coupling Input
Mounting Style	Shaft Mount
Input Bore (C Face)	1.125
Output Shaft Assembly Code	H1
Reducer	Worm - Right Angle
Center Distance (in)	3.00
No. of Gear Reductions	Single
Gear Type	Worm
Output Key	1/2 X 3.38
Product Line	GR Series - Ironman Worm Gear Reducers
Reducer Style	Worm - Right Angle
Input RPM	1,750
Ratio Range	7.5:1
Ratio	7.5:1
Series Code	GR
Input HP	6.879
Product Type	Right Angle
Frame Size	180TC
Series Style	GR-HM-H1
Output Diameter (in)	1.938 in
Output Shaft Orientation	H1
Output Style	H1
Input Keyway	3/16 X 1.63 in
Input Diameter (in)	0.875 in
Series	GR Series - Ironman Worm Gear Reducers
Assembly	HM-H1
Shaft Seal Material	Viton
Service Factor	1
Output HP	6.421
Motor Frame Size	180
Thrust Rating - output shaft	1944
Model Code	HM830
Output RPM	233
Input HP @ 1750 RPM	6.879
Reduction	Single
Output Shaft Direction	H1
Housing Material	Cast Iron
Output Torque Rating (in-lb)	1734 in/lbs
Overhung Load Rating (Output Shaft(lb))	2,170 lb
Output Shaft	Hollow Bore

General Specifications

UPC	690310020760
Weight	70.00 LB