• 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

Fastener Quantity	14
Tooth Profile	Straight Faced Involute Hub tooth
Coupling Size	4.5
Outside Diameter (in)	13.625 in
Coupling Type	Gear Coupling
Bolt Type	Shrouded
Material	Medium Carbon Steel
Max Bore w/standard key for Flex Hub	4.75 in
Bore Type	Rough Bore
Model Name	1-5-7_FR
Length Through Bore (in)	5.0625 in
Rating HP @ 100 RPM	505
Hub Diameter (in)	10.125 in
Torque Rating (in-lb)	318,000 in/lbs
Configuration	Flex Rigid
Compatible Bore Size Rigid Hub [Min] (in)	3 in
Speed Max (rpm)	4,770 rpm
Compatible Bore Size Flex Hub [Min] (in)	3 in
Lube/Non-Lube	Lubricated
Style	FASTS
Torque [Max] (in-lb)	636,000 in/lbs
Measurement System	Imperial
Compatible Bore Size [Min] (in)	0 in
Overall Length (in)	10.72 in
Sleeve Type	Flanged
Bore Size Max (in)	4.75 in
Fastener Size	5/8 x 1 5/8

General Specifications

UPC	662384010251
Weight	232.16 LB