• 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

Material	Medium Carbon Steel
Model Name	1-5-7_FF
Length Through Bore (in)	4.75 in
Rating HP @ 100 RPM	375
Fastener Quantity	14
Bolt Circle	10.625 in
Bore Type	Rough Bore
Tooth Profile	Straight Faced Involute Hub tooth
Coupling Size	4
Bolt Type	Shrouded
Outside Diameter (in)	12.5 in
Coupling Type	Gear Coupling
Measurement System	Imperial
Speed Max (rpm)	5,260 rpm
Lube/Non-Lube	Lubricated
Configuration	Full Flex
Style	FASTS
Compatible Bore Size [Min] (in)	2.625 in
Torque Rating (in-lb)	236,000 in/lbs
Torque [Max] (in-lb)	472,000 in/lbs
Overall Length (in)	9.75 in
Sleeve Type	Flanged
Bore Size Max (in)	4.25 in
Fastener Size	5/8 x 1 5/8

General Specifications

UPC	662384010053
Weight	165.39 LB