• Large bore capacity with o-ring seal design. The most economical gear coupling design.
• Curved face teeth (sizes 1 through 7) for up to 1.5 degrees static misalignment capability.
• Series H coupling sleeves will bolt to all competitor couplings sizes 1 through 7 for interchangeability in flex halves.
• Precision-drilled flange bolt holes with special body-fitting, grade 5 bolts for a long-lasting piloted flange connection.

Technical Specifications

Material	Medium Carbon Steel
Outside Diameter (in)	11 in
Tooth Profile	Straight faced, Involute Stub Tooth
Bore Type	Rough Bore
Coupling Type	Gear Coupling
Fastener Quantity	8
Bolt Type	Exposed
Rating HP @ 100 RPM	235
Coupling Size	3.5
Max Bore w/standard key for Flex Hub	4.5 in
Length Through Bore (in)	4.03125 in
Model Name	H_1-7_FR_Master
Hub Diameter (in)	7.75 in
Speed Max (rpm)	6,000 rpm
Torque [Max] (in-lb)	296,000 in/lbs
Measurement System	Imperial
Compatible Bore Size Flex Hub [Min] (in)	1.6875 in
Torque Rating (in-lb)	148,000 in/lbs
Compatible Bore Size [Min] (in)	0 in
Style	Series H
Configuration	Flex Rigid
Lube/Non-Lube	Lubricated
Compatible Bore Size Rigid Hub [Min] (in)	2.25 in
Overall Length (in)	8.438 in
Sleeve Type	Flanged
Fastener Size	3/4 x 3 3/8
Bore Size Max (in)	4.5 in

General Specifications

UPC	662384140279
Weight	132.04 LB