• 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

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

Technical Specifications

Input Diameter (in)	1.25 in
Thrust Rating - output shaft	3412
Model Code	BM852
Input HP @ 1750 RPM	5.816
Ratio Range	60:1
Reducer	Worm - Right Angle
Motor Frame Size	210
Assembly	BM-L
Gear Type	Worm
Series Style	GR-BM-L
Output RPM	29
Output Shaft Orientation	L
Input Keyway	1/4 X 3.00 in
Overhung Load	3,570
No. of Gear Reductions	Single
Reducer Style	Worm - Right Angle
Output Shaft Assembly Code	L
Ratio	60:1
Product Line	GR Series - Ironman Worm Gear Reducers
Input Keyway (C Face)	5/16 x 5/32
Series	GR Series - Ironman Worm Gear Reducers
Frame Size	210TC
Input HP	5.816
Output HP	4.263
Mounting Style	Base
Output Diameter (in)	2 in
Input RPM	1,750
Center Distance (in)	5.25
Service Factor	1
Product Type	Right Angle
Output Style	L
Input Style	Flexible Coupling Input
Shaft Seal Material	Viton
Series Code	GR
Input Bore (C Face)	1.375
Output Key	1/2 X 3.50
Reduction	Single
Output Shaft Direction	Left
Housing Material	Cast Iron
Output Shaft	Solid Shaft
Output Torque Rating (in-lb)	9212 in/lbs
Overhung Load Rating (Output Shaft(lb))	3,570 lb

General Specifications

UPC	690310031407
Weight	254.00 LB