• 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

LM	6.6
AK	4.5
D	1.91
I	3.14 in
G	1.38
C	5.38 in
O*	1.9 in
K	2.09 in
BE	0.38 in
J	4.19 in
L	4.35 in
Center Distance (in)	1.54 in
N	4.31
BD	6.5
U	0.625 in
T	0.75
AJ	5.88
B	4.88
BF	0.41
F	2.75
O	2.11 in
H-Tap size	5/16-18 UNC in
A	3.44
TAP Depth	0.63 in

Technical Specifications

No. of Gear Reductions	Single
Output Style	R
Series Code	GR
Output Shaft Assembly Code	R
Input HP	0.56
Output HP	0.361
Output Key	3/16 X 1.50
Overhung Load	860
Reducer Style	Worm - Right Angle
Frame Size	56C
Mounting Style	Base
Series Style	GR-BM-R
Input Style	Flexible Coupling Input
Series Type	Cast Iron 800 Worm Gear Reducers
Output RPM	43
Output Shaft Orientation	R
Keyway	3/16 X 3/32
Input RPM	1,750
Ratio	40:1
Ratio Range	40:1
Series	GR Series - Ironman Worm Gear Reducers
Motor Frame Size	56C
Assembly	BM-R
Center Distance (in)	1.54
Shaft Seal Material	Viton
Gear Type	Worm
Input Diameter (in)	0.625 in
Output Diameter (in)	0.75 in
Input HP @ 1750 RPM	0.56
Input Keyway	3/16 X 1.38 in
Product Line	GR Series - Ironman Worm Gear Reducers
Input Keyway (C Face)	3/16 x 3/32
Reducer	Worm - Right Angle
Product Type	Worm Speed Reducer
Model Code	BM815
Service Factor	1
Thrust Rating - output shaft	1144
Input Bore (C Face)	0.625
Reduction	Single
Output Shaft Direction	Right
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	860 lb
Output Torque Rating (in-lb)	520 in/lbs
Output Shaft	Solid Shaft

General Specifications

UPC	690310005101
Weight	29.00 LB
Packaged Length	10.69 IN
Packaged Width	9.06 IN
Packaged Height	10.50 IN