• 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

V	1.94 in
AB	5.43
AA	7.24
BD	6.5
I	3.61 in
H	0.53 in
RQ	4.06 in
AE2	0.4
LQ	4.46 in
D	2.28
C	6.38 in
Center Distance (in)	2.06 in
AK	4.5
AF	0.75
F	3
R	0.75 in
B	5.8
J	4.75 in
AG	6
G	1.44
AE1	0.61
BE	0.38 in
AD	4.99

Technical Specifications

Input HP	0.217
Output HP	0.122
Reducer Style	Worm - Right Angle
Output Shaft Orientation	H1
Input Style	C-Face Quill
Mounting Style	Shaft Mount
Series Type	Cast Iron 800 Worm Gear Reducers
Keyway	3/16 X 3/32
Output Style	H1
Input RPM	1,750
Output Shaft Assembly Code	H1
Bore Code	16
Series Code	GRG
Output RPM	17
Output Key	1/4 X 2.50
Series Style	GRG-WHMQ-H1
Frame Size	56C
Product Line	GR Series - Ironman Worm Gear Reducers
Input Keyway (C Face)	3/16 x 3/32
Input Quill Diameter (in)	0.625 in
Output Diameter (in)	1.000 in
Assembly	WHMQ-H1
Product Type	Right Angle
Series	GR Series - Ironman Worm Gear Reducers
Center Distance (in)	2.06
Ratio	100:1
Gear Type	Worm
Ratio Range	100:1 to 250:1
Input Diameter (in)	0.625 in
Input Bore (C Face)	0.625
Shaft Seal Material	Viton
Service Factor	1
Model Code	WHMQ821
Reducer	Worm - Right Angle
Motor Frame Size	56C
No. of Gear Reductions	Single
Reduction	Single
Housing Material	Cast Iron
Output Torque Rating (in-lb)	439 in/lbs
Output Shaft	Hollow Bore

General Specifications

Weight

30.00 LB