• 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

J	4.63 in
BE	0.38 in
K	2.31 in
BD	6.5
F	2.38
O	3.56 in
A	3.12
BF	0.41
C	8.25 in
AK	4.5
G	1.19
AJ	5.88
T	1.25
I	4.84 in
L	6.57 in
TAP Depth	0.75 in
H-Tap size	3/8 - 16 UNC in
D	3.38
U	0.875 in
LM	8.82
Center Distance (in)	3 in
N	5.77
B	6.62

Technical Specifications

Assembly	BM-L
Shaft Seal Material	Viton
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Input HP @ 1750 RPM	1.822
Overhung Load	2,170
Input Keyway	3/16 X 1.63 in
Output HP	1.72
Input Bore (C Face)	0.875
Thrust Rating - output shaft	2574
Frame Size	140TC
Series Code	NH
Output Key	1/4 x 1.75
Ratio	40:1
Model Code	BM830
Input RPM	1,750
Gear Type	Worm
Ratio Range	40:1
Input Keyway (C Face)	3/16 x 3/32
Input Style	Flexible Coupling Input
Reducer	Worm - Right Angle
No. of Gear Reductions	Single
Mounting Style	Base
Product Type	Right Angle
Output Shaft Orientation	L
Center Distance (in)	3.00
Input Diameter (in)	0.875 in
Service Factor	1
Series Style	NH-BM-L
Output RPM	43
Motor Frame Size	140
Reducer Style	Worm - Right Angle
Output Diameter (in)	1.250 in
Output Shaft Assembly Code	L
Input HP	2.251
Output Style	L
Reduction	Single
Output Shaft Direction	Left
Output Torque Rating (in-lb)	2018 in/lbs
Housing Material	Cast Iron
Output Shaft	Solid Shaft
Overhung Load Rating (Output Shaft(lb))	1,950 lb

General Specifications

UPC	690310072356
Weight	59.00 LB