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

Technical Specifications

Reducer Style	Worm - Right Angle
Input RPM	1,750
Output HP	0.539
Series	NH Series - Ironman Narrow Housing Worm Gear Reducers
Frame Size	56C
Output RPM	35
Input HP	0.769
Ratio	50:1
Overhung Load	775
Reducer	Worm - Right Angle
Output Shaft Orientation	LR
Input Style	C-Face Quill
Assembly	BMQ-D
Keyway	3/16 X 3/32
Output Key	3/16 X 1.50
Input Diameter (in)	0.625 in
No. of Gear Reductions	Single
Mounting Style	No Base
Thrust Rating - output shaft	1144
Gear Type	Worm
Center Distance (in)	2.06
Input Keyway (C Face)	3/16 x 3/32
Product Line	NH Series - Ironman Narrow Housing Worm Gear Reducers
Shaft Seal Material	Viton
Ratio Range	50:1
Output Shaft Assembly Code	D
Input Quill Diameter (in)	0.625 in
Motor Frame Size	56
Model Code	BMQ821
Input HP @ 1750 RPM	0.769
Series Code	NH
Service Factor	1
Output Diameter (in)	0.875 in
Input Bore (C Face)	0.625
Product Type	Right Angle
Series Style	NH-BMQ-D
Output Style	D
Reduction	Single
Output Shaft Direction	Double
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	775 lb
Output Torque Rating (in-lb)	970 in/lbs
Output Shaft	Solid Shaft

General Specifications

UPC	690310062456
Weight	25.00 LB
Packaged Length	10.69 IN
Packaged Width	9.06 IN
Packaged Height	10.50 IN