• 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

TAP Depth	0.63 in
D	2.06
I	3.24 in
C	5.75 in
AJ	3.75
T	0.875
B	5.06
BE	0.38 in
H-Tap size	5/16-18 UNC in
L	4.45 in
BD	4.36
A	3.56
G	1.38
BF	0.28
K	2.09 in
O	2.05 in
U	0.625 in
Center Distance (in)	1.75 in
LM	6.26
AK	3
N	4.31
J	4.19 in
F	2.75

Technical Specifications

Product Type	Right Angle
Mounting Style	Base
Overhung Load	1,200
Input Keyway (C Face)	1/8 x 1/16
Frame Size	48CZ
Center Distance (in)	1.75
Input Diameter (in)	0.625 in
Motor Frame Size	48
Output RPM	43
Gear Type	Worm
Output Diameter (in)	0.875 in
Input Style	Flexible Coupling Input
Assembly	BM-L
Shaft Seal Material	Viton
Ratio Range	40:1
Series	GR Series - Ironman Worm Gear Reducers
Thrust Rating - output shaft	1144
Output HP	0.44
Reducer Style	Worm - Right Angle
Output Key	3/16 x 1.38
Series Style	GR-BM-L
Output Style	L
Series Code	GR
Input Keyway	3/16 X 1.38 in
Reducer	Worm - Right Angle
Output Shaft Assembly Code	L
Output Shaft Orientation	L
Input HP	0.609
Input Bore (C Face)	0.5
Service Factor	1
No. of Gear Reductions	Single
Product Line	GR Series - Ironman Worm Gear Reducers
Model Code	BM818
Ratio	40:1
Input HP @ 1750 RPM	0.609
Input RPM	1,750
Reduction	Single
Output Shaft Direction	Left
Output Torque Rating (in-lb)	634 in/lbs
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	1,200 lb
Output Shaft	Solid Shaft

General Specifications

UPC	690310008164
Weight	26.00 LB