• 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

T	0.625
BF	0.28
C	4.66 in
I	2.61 in
N	4
TAP Depth	0.5 in
H-Tap size	5/16-18 UNC in
AJ	3.75
AK	3
G	1
K	1.63 in
B	3.8
LM	5.63
L	3.82 in
J	3.25 in
U	0.5 in
BE	0.38 in
Center Distance (in)	1.33 in
O	2.16 in
D	1.72
A	2.82
BD	4.36
F	2

Technical Specifications

Motor Frame Size	48
Output Shaft Assembly Code	R
Input Keyway	1/8 X 1.00 in
Model Code	BM813
Input Bore (C Face)	0.5
Series	GR Series - Ironman Worm Gear Reducers
Shaft Seal Material	Viton
Output HP	0.04
Center Distance (in)	1.33
Overhung Load	700
Series Style	GR-BM-R
Output Style	R
Ratio	100:1
Ratio Range	100:1 to 250:1
Output Key	3/16 x 1.50
Input Keyway (C Face)	1/8 x 1/16
Reducer Style	Worm - Right Angle
No. of Gear Reductions	Single
Input Diameter (in)	0.5 in
Input HP	0.084
Output Shaft Orientation	R
Reducer	Worm - Right Angle
Gear Type	Worm
Input RPM	1,750
Output Diameter (in)	0.625 in
Product Line	GR Series - Ironman Worm Gear Reducers
Input Style	Flexible Coupling Input
Thrust Rating - output shaft	1144
Product Type	Right Angle
Output RPM	17
Series Code	GR
Service Factor	1
Frame Size	48CZ
Input HP @ 1750 RPM	0.084
Assembly	BM-R
Mounting Style	Base
Reduction	Single
Output Shaft Direction	Right
Overhung Load Rating (Output Shaft(lb))	700 lb
Housing Material	Cast Iron
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	143 in/lbs

General Specifications

UPC	690310003190
Weight	22.00 LB