• 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

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

Technical Specifications

Product Type	Worm Speed Reducer
Output Style	R
Input Style	Flexible Coupling Input
Output Shaft Assembly Code	R
Input HP	0.515
Service Factor	1
Input RPM	1,750
Output Diameter (in)	0.875 in
Assembly	BM-R
Output Key	3/16 X 1.38
Series	GR Series - Ironman Worm Gear Reducers
Model Code	BM818
Overhung Load	1,200
Gear Type	Worm
Ratio	50:1
No. of Gear Reductions	Single
Reducer	Worm - Right Angle
Series Code	GR
Output RPM	35
Center Distance (in)	1.75
Motor Frame Size	56C
Input Keyway	3/16 X 1.38 in
Input HP @ 1750 RPM	0.515
Frame Size	56C
Reducer Style	Worm - Right Angle
Input Keyway (C Face)	3/16 x 3/32
Product Line	GR Series - Ironman Worm Gear Reducers
Shaft Seal Material	Viton
Input Diameter (in)	0.625 in
Series Style	GR-BM-R
Input Bore (C Face)	0.625
Output HP	0.352
Mounting Style	Base
Ratio Range	50:1
Output Shaft Orientation	R
Thrust Rating - output shaft	1144
Reduction	Single
Output Shaft Direction	Right
Overhung Load Rating (Output Shaft(lb))	1,200 lb
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	634 in/lbs
Housing Material	Cast Iron

General Specifications

UPC	690310007167
Weight	26.00 LB