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Kop-Flex 4H FHUB (Rexnord PN 1963271) is a Size 4 Series H Gear Coupling Flex Hub made of carbon steel. It has a 12.5" outside diameter, 5.5" maximum bore size, and 4.75" length through bore. This flex hub is designed for use with Series H gear coupling sleeves, providing a drop-in replacement for competitor sizes 1-7.
MODEL 1963271
Contact supplier for technical support on: 800-626-2120
$775.52 Each
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Bore Size Max
5.5
Bore Type
Rough Bore
Component Type
Flex Hub
Configuration
Full Flex
Coupling Size
4
Coupling Type
Gear Coupling
Height (in)
5.70
Hub Diameter (in)
7.75
Length (in)
13.00
Length Through Bore (in)
4.75
Length Through Bore (mm)
120.65
Lube/Non-Lube
Lubricated
Material
Carbon steel
Max Bore w/standard key
5.5
Measurement System
Imperial
Model
Series H
OD
12.5
Size Code
4
Sleeve Outside Diameter (in)
12.5
Speed Max (rpm)
5260
Tooth Profile
Crowned
Torque Rating (in-lb)
236000
Width
13.20
- 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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