• 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

BE	0.38 in
AK	4.5
I	3.61 in
D	3
U	0.625 in
F	4.69
LM	7.07
Center Distance (in)	2.06 in
BF	0.41
G	2.34
V	0.72 in
J	6.38 in
T	1
AJ	5.88
L	4.82 in
K	3.19 in
O	2.29 in
BD	6.5
H	0.47 in
N	4.68
B	7.69
C	7.09 in
A	6

Technical Specifications

No. of Gear Reductions	Single
Output Style	R
Input RPM	1,750
Series Type	Cast Iron 800 Worm Gear Reducers
Output RPM	87
Frame Size	140TC
Overhung Load	1,175
Series Code	GRG
Output Shaft Orientation	R
Input HP	1.584
Input Style	C-Face Coupled
Mounting Style	Horizontal Base, Worm Over
Output Key	1/4 X 1.44
Output Shaft Assembly Code	R
Series Style	GRG-TM-R
Keyway	3/16 X 3/32
Reducer Style	Worm - Right Angle
Output HP	1.338
Ratio Range	20:1
Ratio	20:1
Product Type	Right Angle
Input Keyway	3/16 X 1.38 in
Assembly	TM-R
Model Code	TM821
Input Diameter (in)	0.875 in
Input Bore (C Face)	0.875
Gear Type	Worm
Center Distance (in)	2.06
Shaft Seal Material	Viton
Output Diameter (in)	1.000 in
Service Factor	1
Series	GR Series - Ironman Worm Gear Reducers
Input Keyway (C Face)	3/16 x 3/32
Product Line	GR Series - Ironman Worm Gear Reducers
Motor Frame Size	140TC
Reducer	Worm - Right Angle
Reduction	Single
Output Shaft Direction	Right
Output Shaft	Shaft
Housing Material	Cast Iron
Output Torque Rating (in-lb)	964 in/lbs

General Specifications

Weight

34.00 LB