• 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

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

Technical Specifications

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

General Specifications

UPC	690310031667
Weight	254.00 LB