• 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

BD	6.5
AK	4.5
I	2.61 in
T	0.625
B	3.8
AJ	5.88
U	0.5 in
BF	0.41
A	2.82
TAP Depth	0.5 in
BE	0.38 in
F	2
H-Tap size	5/16-18 UNC in
L	3.82 in
J	3.25 in
D	1.72
N	4
O	2.16 in
K	1.63 in
G	1
Center Distance (in)	1.33 in
LM	6.07
C	4.66 in

Technical Specifications

Input HP @ 1750 RPM	0.285
Assembly	BM-L
Motor Frame Size	56C
Overhung Load	700
Series Code	GR
Output HP	0.182
Output Key	3/16 X 1.50
Gear Type	Worm
Product Type	Worm Speed Reducer
Input HP	0.285
Input Keyway (C Face)	3/16 x 3/32
Ratio Range	50:1
Input RPM	1,750
Input Style	Flexible Coupling Input
Reducer	Worm - Right Angle
Series Style	GR-BM-L
Output Shaft Assembly Code	L
Center Distance (in)	1.33
Frame Size	56C
Input Diameter (in)	0.5 in
Input Bore (C Face)	0.625
Output Style	L
Output RPM	35
Mounting Style	Base
Shaft Seal Material	Viton
Reducer Style	Worm - Right Angle
Service Factor	1
Input Keyway	1/8 X 1.00 in
Ratio	50:1
Model Code	BM813
No. of Gear Reductions	Single
Output Shaft Orientation	L
Product Line	GR Series - Ironman Worm Gear Reducers
Thrust Rating - output shaft	1144
Output Diameter (in)	0.625 in
Series	GR Series - Ironman Worm Gear Reducers
Reduction	Single
Output Shaft Direction	Left
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	700 lb
Output Torque Rating (in-lb)	327 in/lbs
Output Shaft	Solid Shaft

General Specifications

UPC	690310002490
Weight	22.00 LB