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Kop-Flex 4H EB FR FB (Rexnord PN 2275378) Size 4 Series H gear coupling with extended bore, rough bore, and finished bore configurations, 12.5" outside diameter and 5.5" maximum bore size. This lubricated coupling features sleeves designed to bolt to all competitor gear coupling sizes 1-7 for drop-in replacement. Suitable for industrial power transmission applications requiring reliable torque transfer and misalignment accommodation.
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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