• Aluminum housing provides superior resistances to corrosion, even in harsh environments.
• Factory-filled with premium Mobil Glygoyle 460 polyalkalene glycol lubricant – USDA Class H1 approved.
• 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.
• 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.
• The unique quill seal guard protects the input seal from damage during motor installation.
• 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

BF	0.41
T	1
C	7.51 in
U	0.625 in
V	0.63 in
Hole dia	0.44 in
O	2.29 in
BE	0.38 in
AK	4.5
J	6 in
L1	4 in
BD	6.5
G	2.69
Center Distance (in)	2.06 in
D	2.82
I	3.4 in
LM	6.26
B	7.25
F	5.38
AJ	5.88
K	3 in
N	4.68
A	6.63

Technical Specifications

Ratio	40:1
Reducer Style	Worm - Right Angle
Frame Size	56C
Assembly	UM-R
Output Shaft Orientation	R
Reducer	Worm - Right Angle
Input RPM	1,750
Output RPM	43
Overhung Load	1,315
Output HP	0.674
Input Style	C-Face Coupled
Input HP	0.916
Output Key	1/4 X 1.44
Series	EL Series - Aluminum Worm Gear Reducers
Output Shaft Assembly Code	R
Series Style	EL-UM-R
Input Bore (C Face)	0.625
Input Keyway	3/16 x .500 in
Output Diameter (in)	1.000 in
Service Factor	1
Input Diameter (in)	0.625 in
Ratio Range	40:1
Mounting Style	Horizontal Base, Worm Under
Center Distance (in)	2.06
Output Style	R
No. of Gear Reductions	Single
Product Line	EL Series - Aluminum Worm Gear Reducers
Model Code	UM821
Shaft Seal Material	Viton
Gear Type	Worm
Motor Frame Size	56C
Input Keyway (C Face)	3/16 x 3/32
Product Type	Right Angle
Reduction	Single
Output Shaft Direction	Right
Housing Material	Aluminum
Output Shaft	Shaft
Output Torque Rating (in-lb)	971 in/lbs

General Specifications

Weight

23.00 LB