• 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

T	1.25
O	2.73 in
D	2.94
U	0.75 in
N	5.63
AK	4.5
BE	0.38 in
H-Tap size	3/8-16 UNC in
B	7.12
BF	0.41
A	4.84
LM	8.32
C	8 in
Center Distance (in)	2.63 in
AJ	5.88
G	1.69
K	3.19 in
TAP Depth	0.69 in
BD	6.5
I	4.34 in
F	3.38
L	6.07 in
J	6.38 in

Technical Specifications

Gear Type	Worm
Series	GRG Series - Ironman Worm Gear Reducers
Output RPM	233
Service Factor	1
Input Style	Flexible Coupling Input
Output Style	L
No. of Gear Reductions	Single
Reducer	Worm - Right Angle
Input Diameter (in)	0.75 in
Shaft Seal Material	Viton
Output Shaft Assembly Code	L
Frame Size	140TC
Input Bore (C Face)	0.875
Ratio Range	7.5:1
Series Style	GRG-BM-L
Thrust Rating - output shaft	1609
Input HP	4.956
Product Type	Right Angle
Output Key	1/4 x 1.75
Input Keyway	3/16 X 1.63 in
Model Code	BM826
Output Diameter (in)	1.250 in
Center Distance (in)	2.63
Product Line	GRG Series - Ironman Worm Gear Reducers
Input HP @ 1750 RPM	4.956
Output HP	4.571
Mounting Style	Base
Series Code	GRG
Reducer Style	Worm - Right Angle
Motor Frame Size	140
Assembly	BM-L
Input RPM	1,750
Output Shaft Orientation	L
Ratio	7.5:1
Overhung Load	1,625
Input Keyway (C Face)	3/16 x 3/32
Reduction	Single
Output Shaft Direction	Left
Output Torque Rating (in-lb)	1235 in/lbs
Overhung Load Rating (Output Shaft(lb))	1,625 lb
Output Shaft	Solid Shaft
Housing Material	Cast Iron

General Specifications

UPC	690310041376
Weight	57.00 LB