• 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

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

Technical Specifications

Output Shaft Orientation	R
Input Style	C-Face Quill
Output HP	3.41
Output RPM	350
Input HP	3.653
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Frame Size	140TC
Output Key	3/16 X 1.50
Input RPM	1,750
Reducer Style	Worm - Right Angle
Ratio	5:1
Keyway	3/16 X 3/32
Reducer	Worm - Right Angle
Assembly	BMQ-R
Overhung Load	775
Output Shaft Assembly Code	R
Service Factor	1
Shaft Seal Material	Viton
No. of Gear Reductions	Single
Product Type	Right Angle
Motor Frame Size	140
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Input Quill Diameter (in)	0.875 in
Ratio Range	5:1
Output Diameter (in)	0.875 in
Model Code	BMQ821
Output Style	R
Center Distance (in)	2.06
Series Style	NH-BMQ-R
Input Keyway	3/16 X 1.63 in
Mounting Style	No Base
Input HP @ 1750 RPM	3.653
Thrust Rating - output shaft	735
Input Bore (C Face)	0.875
Series Code	NH
Input Keyway (C Face)	3/16 x 3/32
Input Diameter (in)	0.875 in
Gear Type	Worm
Reduction	Single
Output Shaft Direction	Right
Output Shaft	Solid Shaft
Overhung Load Rating (Output Shaft(lb))	775 lb
Output Torque Rating (in-lb)	614 in/lbs
Housing Material	Cast Iron

General Specifications

UPC	690310062586
Weight	25.00 LB
Packaged Length	10.69 IN
Packaged Width	9.06 IN
Packaged Height	10.50 IN