• 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

O*	4.53 in
TAP Depth	1.25 in
AK	8.5
N	9.06
K	5.5 in
AJ	7.25
BE1	0.5 in
BF	0.53
T	2
L1	14.3 in
U	1.25 in
G	2.91
A	7.19
B	13
L	10.88 in
O	4.78 in
H-Tap size	5/8-11 UNC in
Center Distance (in)	5.25 in
F	5.81
J	11 in
D	5.12
C	14 in
I	7.5 in
BD	9

Technical Specifications

Series	GR Series - Ironman Worm Gear Reducers
Output Style	D
Ratio Range	20:1
Output Shaft Orientation	LR
Output Diameter (in)	2 in
Motor Frame Size	180
Input HP	15.56
Assembly	BM-D
Service Factor	1
Ratio	20:1
Series Code	GR
Output HP	12.98
Model Code	BM852
No. of Gear Reductions	Single
Shaft Seal Material	Viton
Output RPM	87
Reducer	Worm - Right Angle
Input Keyway (C Face)	1/4 x 1/8
Center Distance (in)	5.25
Input Style	Flexible Coupling Input
Gear Type	Worm
Product Line	GR Series - Ironman Worm Gear Reducers
Series Style	GR-BM-D
Output Shaft Assembly Code	D
Frame Size	180TC
Input HP @ 1750 RPM	14.56
Product Type	Right Angle
Overhung Load	3,560
Input Bore (C Face)	1.125
Reducer Style	Worm - Right Angle
Input Keyway	1/4 X 3.00 in
Thrust Rating - output shaft	3412
Input Diameter (in)	1.25 in
Output Key	1/2 X 3.50
Input RPM	1,750
Mounting Style	Base
Reduction	Single
Output Shaft Direction	Double
Housing Material	Cast Iron
Output Shaft	Solid Shaft
Overhung Load Rating (Output Shaft(lb))	3,560 lb
Output Torque Rating (in-lb)	9351 in/lbs

General Specifications

UPC	690310031315
Weight	254.00 LB