• 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

G	0.94
A	2.5
BF	0.41
D	2.31
O*	2.45 in
F	1.88
J	3.25 in
RQ	4.06 in
H-Tap size	5/16 - 18 UNC in
C	6 in
Center Distance (in)	2.06 in
AK	4.5
B	4.5
I	3.61 in
AJ	5.88
TAP Depth	0.63 in
N	4.34
K	1.63 in
T	0.875
LQ	4.46 in
O	2.66 in
BD	6.5
BE	0.38 in

Technical Specifications

No. of Gear Reductions	Single
Center Distance (in)	2.06
Product Type	Right Angle
Gear Type	Worm
Output Diameter (in)	0.875 in
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Reducer Style	Worm - Right Angle
Input RPM	1,750
Reducer	Worm - Right Angle
Input Style	C-Face Quill
Motor Frame Size	140
Input Keyway (C Face)	3/16 x 3/32
Output Shaft Assembly Code	D
Thrust Rating - output shaft	898
Ratio Range	10:1
Overhung Load	1,065
Shaft Seal Material	Viton
Ratio	10:1
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Output Style	D
Series Code	NH
Series Style	NH-BMQ-D
Input HP @ 1750 RPM	2.464
Output Shaft Orientation	LR
Input Diameter (in)	0.875 in
Frame Size	140TC
Service Factor	1
Output HP	2.235
Input Bore (C Face)	0.875
Assembly	BMQ-D
Mounting Style	Base
Model Code	BMQ821
Output RPM	175
Input HP	2.464
Output Key	3/16 X 1.50
Reduction	Single
Output Shaft Direction	Double
Housing Material	Cast Iron
Output Shaft	Solid Shaft
Overhung Load Rating (Output Shaft(lb))	775 lb
Output Torque Rating (in-lb)	805 in/lbs

General Specifications

UPC	690310062692
Weight	25.00 LB