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Kop-Flex 4H EB FR FB (Rexnord PN 2275378) is a Size 4 Series H gear coupling with extended bore, rough bore, and finished bore configurations. It features a 12.5" outside diameter and 5.5" maximum bore size. This lubricated coupling is designed for drop-in replacement on competitor gear coupling sizes 1-7.
MODEL 2275378
Contact supplier for technical support on: 800-626-2120
$4,466.06 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
Bolt Type
Exposed
Bore Size Max
5.5
Bore Type
Finished Bore
Configuration
Flex Rigid
Coupling Size
4
Coupling Type
Gear Coupling
Fastener Quantity
8
Fastener Size & Length
3/4 x 3 3/8
Length Through Bore (in)
4.4375
Lube/Non-Lube
Lubricated
Material
Medium Carbon Steel
Max Bore w/standard key for Flex Hub
5.5
Measurement System
Imperial
Min Compatible Bore Size (in)
0
Min Compatible Bore Size Flex Hub (in)
2.5
Min Compatible Bore Size Rigid Hub (in)
2.5
OD
12.5
Rating HP @ 100 RPM
375
Speed Max (rpm)
5260
Style
Series H
Tooth Profile
Straight faced, Involute Stub Tooth
Torque [Max] (in-lb)
472000
Torque Rating (in-lb)
236000
- 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.
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