• 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

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

Technical Specifications

Ratio	30:1
Input Diameter (in)	1.25 in
Frame Size	210TC
Input Keyway (C Face)	5/16 x 5/32
Input HP @ 1750 RPM	10.538
Input Keyway	1/4 X 3.00 in
Gear Type	Worm
Input Bore (C Face)	1.375
Center Distance (in)	5.25
Reducer Style	Worm - Right Angle
Series Style	NH-BM-L
Output Shaft Orientation	L
Mounting Style	Base
Motor Frame Size	210
Input HP	10.538
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Reducer	Worm - Right Angle
Ratio Range	30:1
Output Diameter (in)	2.000 in
Thrust Rating - output shaft	3412
Output Key	1/2 x 2.50
Model Code	BM852
Service Factor	1
Assembly	BM-L
Shaft Seal Material	Viton
Output Style	L
Input RPM	1,750
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Output RPM	58
Series Code	NH
Input Style	Flexible Coupling Input
No. of Gear Reductions	Single
Output HP	8.91
Overhung Load	3,560
Output Shaft Assembly Code	L
Product Type	Right Angle
Reduction	Single
Output Shaft Direction	Left
Output Torque Rating (in-lb)	9627 in/lbs
Output Shaft	Solid Shaft
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	3,560 lb

General Specifications

UPC	690310082188
Weight	216.00 LB