• One-piece cast iron housings with single output cover design, CNC machined for precise component fit and alignment.
• 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.
• 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.
• 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.
• 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.
• Mounting dimensions are interchangeable with most industry standard reducers.

Dimensions

N	8.12
D	4.44
T	1.875
BF	0.41
AJ	5.88
O	4.5 in
U	1.25 in
L	9.57 in
AK	4.5
F	5
J	8.5 in
BD	6.5
BE	0.38 in
TAP Depth	1 in
B	10.25
Center Distance (in)	4.25 in
C	11.38 in
A	6.13
K	4.25 in
H-Tap size	5/8-11 UNC in
I	6.1 in
LM	11.81
G	2.5

Technical Specifications

Center Distance (in)	4.25
Output Diameter (in)	1.875 in
Product Type	Right Angle
Output Key	1/2 x 3.06
Ratio Range	80:1
Input Diameter (in)	1.25 in
Output Style	L
Thrust Rating - output shaft	2533
Frame Size	140TC
Mounting Style	Base
Input Keyway	1/4 X 2.50 in
Product Line	GR Series - Ironman Worm Gear Reducers
Input HP @ 1750 RPM	1.76
Series Style	GR-BM-L
Shaft Seal Material	Viton
Reducer	Worm - Right Angle
Service Factor	1
Output HP	1.257
Series Code	GR
Output Shaft Assembly Code	L
Input Bore (C Face)	0.875
Input RPM	1,750
Assembly	BM-L
Output Shaft Orientation	L
Motor Frame Size	140
Series	GR Series - Ironman Worm Gear Reducers
Ratio	80:1
Input Keyway (C Face)	3/16 x 3/32
Overhung Load	3,740
Reducer Style	Worm - Right Angle
Model Code	BM842
Gear Type	Worm
No. of Gear Reductions	Single
Output RPM	21
Input HP	1.76
Input Style	Flexible Coupling Input
Reduction	Single
Output Shaft Direction	Left
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	3620 in/lbs
Overhung Load Rating (Output Shaft(lb))	3,740 lb
Housing Material	Cast Iron

General Specifications

UPC	690310026489
Weight	154.00 LB