• 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

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

Technical Specifications

Output Key	3/16 x 1.38
Ratio Range	25:1
Output HP	0.715
Output Diameter (in)	0.875 in
Series	GR Series - Ironman Worm Gear Reducers
Series Style	GR-BM-D
Center Distance (in)	1.75
Output Shaft Orientation	LR
Assembly	BM-D
Output Shaft Assembly Code	D
Input Keyway (C Face)	3/16 x 3/32
Series Code	GR
Product Line	GR Series - Ironman Worm Gear Reducers
Frame Size	140TC
Shaft Seal Material	Viton
Input Bore (C Face)	0.875
No. of Gear Reductions	Single
Reducer Style	Worm - Right Angle
Output RPM	70
Output Style	D
Service Factor	1
Input HP	0.884
Input Diameter (in)	0.625 in
Reducer	Worm - Right Angle
Overhung Load	1,200
Ratio	25:1
Product Type	Right Angle
Gear Type	Worm
Input Style	Flexible Coupling Input
Thrust Rating - output shaft	1144
Model Code	BM818
Mounting Style	Base
Input Keyway	3/16 X 1.38 in
Input HP @ 1750 RPM	0.884
Input RPM	1,750
Motor Frame Size	140
Reduction	Single
Output Shaft Direction	Double
Output Shaft	Solid Shaft
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	1,200 lb
Output Torque Rating (in-lb)	644 in/lbs

General Specifications

UPC	690310007488
Weight	26.00 LB