• 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

Length Through Bore (in)	5.0625 in
Bolt Type	Exposed
Max Bore w/standard key for Flex Hub	4.75 in
Coupling Type	Gear Coupling
Coupling Size	4.5
Material	Medium Carbon Steel
Rating HP @ 100 RPM	505
Tooth Profile	Straight Faced Involute Hub tooth
Bore Type	Finished Bore
Fastener Quantity	10
Outside Diameter (in)	13.625 in
Compatible Bore Size Rigid Hub [Min] (in)	3 in
Configuration	Flex Rigid
Measurement System	Imperial
Torque [Max] (in-lb)	636,000 in/lbs
Compatible Bore Size Flex Hub [Min] (in)	3 in
Style	FASTS
Lube/Non-Lube	Lubricated
Compatible Bore Size [Min] (in)	0 in
Torque Rating (in-lb)	318,000 in/lbs
Speed Max (rpm)	4,770 rpm
Bore Size Max (in)	4.75 in
Fastener Size	3/4 x 3 3/8

General Specifications

UPC	662384011913
Weight	205.00 LB