• 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

N	9.06
K	5.5 in
F	5.81
TAP Depth	1.25 in
LM	13.21
O	4.78 in
A	7.19
G	2.91
T	2
BF	0.41
BD	6.5
I	7.5 in
J	11 in
C	14 in
AK	4.5
Center Distance (in)	5.25 in
D	5.12
L	10.88 in
O*	4.53 in
H-Tap size	5/8-11 UNC in
B	13
BE	0.38 in
AJ	5.88
U	1.25 in

Technical Specifications

Assembly	BM-D
Output Shaft Assembly Code	D
Thrust Rating - output shaft	3412
Output HP	4.263
Mounting Style	Base
Output Shaft Orientation	LR
Product Line	GR Series - Ironman Worm Gear Reducers
Ratio Range	60:1
Output Diameter (in)	2 in
Input HP @ 1750 RPM	5.816
Series Code	GR
Input Diameter (in)	1.25 in
Shaft Seal Material	Viton
Model Code	BM852
Input RPM	1,750
No. of Gear Reductions	Single
Reducer	Worm - Right Angle
Output Style	D
Ratio	60:1
Reducer Style	Worm - Right Angle
Output RPM	29
Service Factor	1
Series	GR Series - Ironman Worm Gear Reducers
Input Style	Flexible Coupling Input
Input Bore (C Face)	0.875
Input HP	5.816
Product Type	Right Angle
Output Key	1/2 X 3.50
Overhung Load	3,570
Series Style	GR-BM-D
Input Keyway	1/4 X 3.00 in
Motor Frame Size	140
Gear Type	Worm
Frame Size	140TC
Input Keyway (C Face)	3/16 x 3/32
Center Distance (in)	5.25
Reduction	Single
Output Shaft Direction	Double
Output Shaft	Solid Shaft
Housing Material	Cast Iron
Output Torque Rating (in-lb)	9212 in/lbs
Overhung Load Rating (Output Shaft(lb))	3,570 lb

General Specifications

UPC	690310031704
Weight	254.00 LB