• 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

TAP Depth	1.25 in
G	2.25
D	4.88
BD	9
J	9 in
Center Distance (in)	5.25 in
T	2
L	10.88 in
U	1.25 in
B	11
A	6.19
AK	8.5
F	4.5
I	7.5 in
H-Tap size	5/8 - 11 UNC in
C	12.69 in
BE1	0.5 in
K	4.5 in
BF	0.53
L1	14.3 in
O	4.72 in
N	9
AJ	7.25

Technical Specifications

Motor Frame Size	180
Output Diameter (in)	2.000 in
Input HP	6.777
Output Key	1/2 x 2.50
Frame Size	180TC
Mounting Style	Base
Input RPM	1,750
Ratio Range	50:1
Input HP @ 1750 RPM	6.777
Center Distance (in)	5.25
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Assembly	BM-L
Series Code	NH
Output RPM	35
Overhung Load	3,560
Output HP	5.199
Shaft Seal Material	Viton
Model Code	BM852
Input Keyway	1/4 X 3.00 in
Series Style	NH-BM-L
Input Bore (C Face)	1.125
Output Shaft Orientation	L
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Product Type	Right Angle
Service Factor	1
Ratio	50:1
Input Style	Flexible Coupling Input
Input Keyway (C Face)	1/4 x 1/8
Reducer	Worm - Right Angle
No. of Gear Reductions	Single
Output Shaft Assembly Code	L
Reducer Style	Worm - Right Angle
Thrust Rating - output shaft	3412
Output Style	L
Gear Type	Worm
Input Diameter (in)	1.25 in
Reduction	Single
Output Shaft Direction	Left
Output Shaft	Solid Shaft
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	3,560 lb
Output Torque Rating (in-lb)	9362 in/lbs

General Specifications

UPC	690310082058
Weight	216.00 LB