• 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

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

Technical Specifications

Input Keyway (C Face)	5/16 x 5/32
Output HP	21.73
Input Bore (C Face)	1.375
Product Line	GR Series - Ironman Worm Gear Reducers
Input HP	23.15
Output Shaft Orientation	L
Frame Size	210TC
Ratio Range	10:1
Output Style	L
Output RPM	175
Input HP @ 1750 RPM	23.15
Series Code	GR
Mounting Style	Base
Reducer	Worm - Right Angle
Gear Type	Worm
Ratio	10:1
Model Code	BM852
No. of Gear Reductions	Single
Output Key	1/2 X 3.50
Motor Frame Size	210
Input RPM	1,750
Reducer Style	Worm - Right Angle
Input Diameter (in)	1.25 in
Service Factor	1
Input Keyway	1/4 X 3.00 in
Output Diameter (in)	2 in
Thrust Rating - output shaft	2449
Series	GR Series - Ironman Worm Gear Reducers
Series Style	GR-BM-L
Input Style	Flexible Coupling Input
Assembly	BM-L
Output Shaft Assembly Code	L
Overhung Load	3,370
Shaft Seal Material	Viton
Product Type	Right Angle
Center Distance (in)	5.25
Reduction	Single
Output Shaft Direction	Left
Housing Material	Cast Iron
Overhung Load Rating (Output Shaft(lb))	3,370 lb
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	7827 in/lbs

General Specifications

UPC	690310031353
Weight	254.00 LB