• 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

I	3.24 in
Center Distance (in)	1.75 in
G	1.38
F	2.75
BF	0.41
BE	0.38 in
A	3.56
L	4.45 in
C	5.75 in
D	2.06
J	4.19 in
TAP Depth	0.63 in
H-Tap size	5/16-18 UNC in
T	0.875
K	2.09 in
U	0.625 in
AK	4.5
O	2.05 in
B	5.06
LM	6.7
N	4.31
O*	1.84 in
AJ	5.88
BD	6.5

Technical Specifications

Output HP	0.077
Input Keyway (C Face)	3/16 x 3/32
Output RPM	17
Reducer	Worm - Right Angle
No. of Gear Reductions	Single
Gear Type	Worm
Input Style	Flexible Coupling Input
Frame Size	56C
Input Diameter (in)	0.625 in
Output Key	3/16 x 1.38
Input HP @ 1750 RPM	0.141
Shaft Seal Material	Viton
Thrust Rating - output shaft	1144
Output Style	D
Series Style	GR-BM-D
Ratio Range	100:1 to 250:1
Mounting Style	Base
Input RPM	1,750
Product Line	GR Series - Ironman Worm Gear Reducers
Motor Frame Size	56
Product Type	Right Angle
Output Diameter (in)	0.875 in
Service Factor	1
Model Code	BM818
Ratio	100:1
Input Bore (C Face)	0.625
Assembly	BM-D
Reducer Style	Worm - Right Angle
Series	GR Series - Ironman Worm Gear Reducers
Input Keyway	3/16 X 1.38 in
Output Shaft Assembly Code	D
Input HP	0.141
Center Distance (in)	1.75
Overhung Load	1,200
Series Code	GR
Output Shaft Orientation	LR
Reduction	Single
Output Shaft Direction	Double
Housing Material	Cast Iron
Output Torque Rating (in-lb)	277 in/lbs
Output Shaft	Solid Shaft
Overhung Load Rating (Output Shaft(lb))	1,200 lb

General Specifications

UPC	690310007297
Weight	26.00 LB