• 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

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

Technical Specifications

Center Distance (in)	3.00
Motor Frame Size	140
Input HP	4.843
Input Diameter (in)	0.875 in
Service Factor	1
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Input HP @ 1750 RPM	4.207
Output Key	1/4 x 1.75
Ratio Range	15:1
Output Shaft Assembly Code	R
Input Style	Flexible Coupling Input
Gear Type	Worm
Input Keyway (C Face)	3/16 x 3/32
Thrust Rating - output shaft	2549
Output Shaft Orientation	R
Output Style	R
Assembly	BM-R
Shaft Seal Material	Viton
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Mounting Style	Base
Series Code	NH
Output Diameter (in)	1.250 in
Input RPM	1,750
Frame Size	140TC
Input Keyway	3/16 X 1.63 in
Model Code	BM830
No. of Gear Reductions	Single
Reducer Style	Worm - Right Angle
Ratio	15:1
Input Bore (C Face)	0.875
Series Style	NH-BM-R
Reducer	Worm - Right Angle
Overhung Load	2,170
Output RPM	116
Product Type	Right Angle
Output HP	4.311
Reduction	Single
Output Shaft Direction	Right
Output Torque Rating (in-lb)	2026 in/lbs
Overhung Load Rating (Output Shaft(lb))	1,950 lb
Housing Material	Cast Iron
Output Shaft	Solid Shaft

General Specifications

UPC	690310072417
Weight	59.00 LB