• 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

N	5.25
K	2 in
AJ	5.88
J	4 in
G	1.06
O	3.28 in
D	2.94
BD	6.5
U	0.75 in
T	1.125
A	2.88
BF	0.41
AK	4.5
L	6.07 in
I	4.34 in
LM	8.32
H-Tap size	3/8 - 16 UNC in
C	7.38 in
B	5.75
F	2.13
BE	0.38 in
Center Distance (in)	2.63 in
TAP Depth	0.69 in
O*	3.07 in

Technical Specifications

Input Style	Flexible Coupling Input
Gear Type	Worm
Center Distance (in)	2.63
Thrust Rating - output shaft	1609
Reducer	Worm - Right Angle
Series Code	NH
Ratio	7.5:1
Motor Frame Size	140
Input RPM	1,750
Series Style	NH-BM-D
Input Keyway	3/16 X 1.63 in
Output Key	1/4 x 1.75
Output RPM	233
Output Diameter (in)	1.125 in
Input HP @ 1750 RPM	4.956
Reducer Style	Worm - Right Angle
No. of Gear Reductions	Single
Mounting Style	Base
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Frame Size	140TC
Overhung Load	1,625
Output Style	D
Service Factor	1
Input Keyway (C Face)	3/16 x 3/32
Output Shaft Assembly Code	D
Assembly	BM-D
Input Bore (C Face)	0.875
Input Diameter (in)	0.75 in
Output Shaft Orientation	LR
Output HP	4.571
Shaft Seal Material	Viton
Product Type	Right Angle
Input HP	4.956
Model Code	BM826
Ratio Range	7.5:1
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Reduction	Single
Output Shaft Direction	Double
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	1,750 lb
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	1235 in/lbs

General Specifications

UPC	690310068915
Weight	48.00 LB