• All-metal end ring seal design for maximum service life. The industry standard for over 75 years.
• Provides 300% greater lubricant capacity than o-ring style couplings.
• Greater lubricant capacity allows longer periods between scheduled lubrications and longer service life.
• Straight tooth design provides improved load distribution, lower stresses and longer life for the gear teeth.

Technical Specifications

Coupling Type	Gear Coupling
Tooth Profile	Straight Faced Involute Hub tooth
Coupling Size	7
Outside Diameter (in)	20.75 in
Max Bore w/standard key for Flex Hub	8 in
Material	Medium Carbon Steel
Length Through Bore (in)	8.75 in
Bore Type	Rough Bore
Model Name	1-5-7_FR
Bolt Type	Exposed
Rating HP @ 100 RPM	1,840
Fastener Quantity	16
Hub Diameter (in)	13.375 in
Measurement System	Imperial
Speed Max (rpm)	3,000 rpm
Compatible Bore Size Flex Hub [Min] (in)	3.5 in
Style	FASTS
Configuration	Flex Rigid
Compatible Bore Size [Min] (in)	0 in
Compatible Bore Size Rigid Hub [Min] (in)	4 in
Torque [Max] (in-lb)	2,320,000 in/lbs
Lube/Non-Lube	Lubricated
Torque Rating (in-lb)	1,160,000 in/lbs
Overall Length (in)	17.876 in
Sleeve Type	Flanged
Bore Size Max (in)	8 in
Fastener Size	1 x 3 5/8

General Specifications

UPC	662384010374
Weight	860.12 LB