• 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

AJ	5.88
K	2.88 in
O	2.05 in
H	0.41 in
BE	0.38 in
F	4.5
V	0.69 in
AK	4.5
BD	6.5
L	4.45 in
T	0.875
U	0.625 in
D	2.63
LM	6.7
N	4.31
G	2.25
BF	0.41
I	3.24 in
C	6.44 in
B	6.99
Center Distance (in)	1.75 in
J	5.75 in
A	5.75

Technical Specifications

Keyway	3/16 X 3/32
Overhung Load	1,200
Series Type	Cast Iron 800 Worm Gear Reducers
No. of Gear Reductions	Single
Mounting Style	Horizontal Base, Worm Under
Series Style	GR-UM-R
Input RPM	1,750
Output RPM	35
Series Code	GR
Output Style	R
Frame Size	56C
Input Style	C-Face Coupled
Input HP	0.515
Output Shaft Orientation	R
Output HP	0.352
Output Shaft Assembly Code	R
Output Key	3/16 X 1.38
Reducer Style	Worm - Right Angle
Assembly	UM-R
Output Diameter (in)	0.875 in
Product Type	Right Angle
Series	GR Series - Ironman Worm Gear Reducers
Input Diameter (in)	0.625 in
Input Keyway	3/16 X 1.38 in
Ratio Range	50:1
Service Factor	1
Model Code	UM818
Reducer	Worm - Right Angle
Center Distance (in)	1.75
Product Line	GR Series - Ironman Worm Gear Reducers
Gear Type	Worm
Motor Frame Size	56C
Ratio	50:1
Input Keyway (C Face)	3/16 x 3/32
Shaft Seal Material	Viton
Input Bore (C Face)	0.625
Reduction	Single
Output Shaft Direction	Right
Output Shaft	Shaft
Housing Material	Cast Iron
Output Torque Rating (in-lb)	634 in/lbs

General Specifications

Weight

29.00 LB