• 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

K	5.5 in
I	7.5 in
BF	0.53
N	9.06
J	11 in
Center Distance (in)	5.25 in
L	10.88 in
U	1.25 in
F	5.81
TAP Depth	1.25 in
AJ	7.25
G	2.91
T	2
B	13
H-Tap size	5/8-11 UNC in
A	7.19
AK	8.5
BE1	0.5 in
BD	9
L1	14.86 in
O	4.78 in
C	14 in
D	5.12

Technical Specifications

Input HP	18.11
Output Diameter (in)	2 in
Ratio	15:1
Motor Frame Size	250
Series	GR Series - Ironman Worm Gear Reducers
Ratio Range	15:1
Input Bore (C Face)	1.625
Input HP @ 1750 RPM	18.11
Input Keyway	1/4 X 3.00 in
Reducer	Worm - Right Angle
Mounting Style	Base
Input Diameter (in)	1.25 in
Output RPM	116
Output Shaft Orientation	L
Input RPM	1,750
Product Line	GR Series - Ironman Worm Gear Reducers
Series Style	GR-BM-L
Output Style	L
Product Type	Right Angle
Center Distance (in)	5.25
Output HP	16.55
Output Key	1/2 X 3.50
Overhung Load	3,560
Gear Type	Worm
Reducer Style	Worm - Right Angle
Thrust Rating - output shaft	3033
Frame Size	250TC
Input Style	Flexible Coupling Input
Output Shaft Assembly Code	L
Model Code	BM852
Service Factor	1
Assembly	BM-L
No. of Gear Reductions	Single
Series Code	GR
Shaft Seal Material	Viton
Reduction	Single
Output Shaft Direction	Left
Overhung Load Rating (Output Shaft(lb))	3,560 lb
Housing Material	Cast Iron
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	8941 in/lbs

General Specifications

UPC	690310031513
Weight	254.00 LB