• 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

LL	5.25 in
AE1	1.62
V	4.26 in
P	4.62 in
AF	0.38
M	3.38
G	3.63
B	11
AD	8.81
AB	6.76
AG	10.5
U	1.25 in
Center Distance (in)	5.25 in
AA	15.19
H	0.53 in
T	2.25
I	7.5 in
D	4.88
AE2	0.97
L	10.88 in

Technical Specifications

Ratio Range	10:1
Input Diameter (in)	1.25 in
Series Style	NH-H-H1
Service Factor	1
Output Style	H1
Gear Type	Worm
Center Distance (in)	5.25
Input HP @ 1750 RPM	23.15
Output Diameter (in)	2.25 in
Output Shaft Orientation	H1
Input Style	Solid Shaft
Input RPM	1,750
Bore Code	36
Mounting Style	Shaft Mount
Reducer	Worm - Right Angle
No. of Gear Reductions	Single
Output Key	1/2 X 4.00
Output HP	21.73
Output Shaft Assembly Code	H1
Output RPM	175
Series Code	NH
Model Code	H852
Input Keyway	1/4 X 3.00 in
Product Type	Right Angle
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Reducer Style	Worm - Right Angle
Input HP	23.15
Thrust Rating - output shaft	2449
Ratio	10:1
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Shaft Seal Material	Viton
Assembly	H-H1
Reduction	Single
Output Shaft Direction	H1
Overhung Load Rating (Output Shaft(lb))	3,370 lb
Housing Material	Cast Iron
Output Shaft	Hollow Bore
Output Torque Rating (in-lb)	7827 in/lbs

General Specifications

UPC	690310083260
Weight	197.00 LB