• 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

C	11.38 in
J	8.5 in
TAP Depth	1 in
U	1.25 in
Center Distance (in)	4.25 in
F	5
D	4.44
T	1.875
H-Tap size	5/8-11 UNC in
A	6.13
L	9.57 in
G	2.5
AK	8.5
AJ	7.25
BF	0.53
O	4.5 in
B	10.25
I	6.1 in
BD	9
BE1	0.5 in
L1	12.9 in
K	4.25 in
N	8.12

Technical Specifications

Service Factor	1
Reducer Style	Worm - Right Angle
Input HP @ 1750 RPM	4.389
Output Shaft Orientation	L
Input Diameter (in)	1.25 in
Assembly	BM-L
Reducer	Worm - Right Angle
Input HP	4.389
Product Type	Right Angle
Series Code	GR
Ratio Range	50:1
Series	GR Series - Ironman Worm Gear Reducers
Output HP	3.426
Motor Frame Size	210
Ratio	50:1
Model Code	BM842
Gear Type	Worm
Input RPM	1,750
Input Keyway (C Face)	5/16 x 5/32
Input Bore (C Face)	1.375
Input Keyway	1/4 X 2.50 in
Output RPM	35
Series Style	GR-BM-L
Output Shaft Assembly Code	L
Output Style	L
Shaft Seal Material	Viton
Output Key	1/2 x 3.06
Output Diameter (in)	1.875 in
Overhung Load	3,730
No. of Gear Reductions	Single
Mounting Style	Base
Thrust Rating - output shaft	2533
Input Style	Flexible Coupling Input
Product Line	GR Series - Ironman Worm Gear Reducers
Frame Size	210TC
Center Distance (in)	4.25
Reduction	Single
Output Shaft Direction	Left
Output Torque Rating (in-lb)	6170 in/lbs
Overhung Load Rating (Output Shaft(lb))	3,730 lb
Output Shaft	Solid Shaft
Housing Material	Cast Iron

General Specifications

UPC	690310026861
Weight	154.00 LB