• 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

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

Technical Specifications

Product Type	Right Angle
Input Bore (C Face)	0.875
Service Factor	1
Gear Type	Worm
Mounting Style	Base
Overhung Load	2,170
Output HP	6.421
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Input HP	6.879
Model Code	BM830
Motor Frame Size	140
Input RPM	1,750
Series Code	NH
Input Diameter (in)	0.875 in
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Ratio	7.5:1
Shaft Seal Material	Viton
Input HP @ 1750 RPM	6.049
Output Key	1/4 x 1.75
Center Distance (in)	3.00
Input Keyway	3/16 X 1.63 in
Assembly	BM-R
No. of Gear Reductions	Single
Output Shaft Orientation	R
Reducer Style	Worm - Right Angle
Input Keyway (C Face)	3/16 x 3/32
Frame Size	140TC
Input Style	Flexible Coupling Input
Thrust Rating - output shaft	1944
Series Style	NH-BM-R
Output Style	R
Reducer	Worm - Right Angle
Output Diameter (in)	1.250 in
Ratio Range	7.5:1
Output Shaft Assembly Code	R
Output RPM	233
Reduction	Single
Output Shaft Direction	Right
Overhung Load Rating (Output Shaft(lb))	1,950 lb
Housing Material	Cast Iron
Output Torque Rating (in-lb)	1519 in/lbs
Output Shaft	Solid Shaft

General Specifications

UPC	690310072394
Weight	59.00 LB