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Kop-Flex 4F EB FR (Rexnord PN 2280543) Size 4 FASTS gear coupling with extended bore and rough bore, 12.5" outside diameter, 4.25" maximum bore. Lifetime metallic seal and 300% greater lubricant capacity ensure reliable performance in high-torque applications. Designed for drop-in replacement with competitor gear couplings sizes 1-7.
MODEL 2280543
Contact supplier for technical support on: 800-626-2120
$4,287.05 Each
Prices are subject to change
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Returnable:No
Bolt Circle
11
Bolt Type
Exposed
Bore Size Max
4.25
Bore Type
Rough Bore
Configuration
Flex Rigid
Coupling Size
4
Coupling Type
Gear Coupling
Fastener Quantity
8
Fastener Size & Length
3/4 x 3 3/8
Hub Diameter (in)
9
Includes
Hubs (1) Sleeve (1) Rigid (1) Seal (2)
Length Through Bore (in)
4.4375
Lube/Non-Lube
Lubricated
Material
Medium Carbon Steel
Max Bore w/standard key for Flex Hub
4.25
Measurement System
Imperial
Min Compatible Bore Size (in)
0
Min Compatible Bore Size Flex Hub (in)
2.625
Min Compatible Bore Size Rigid Hub (in)
2.5
OD
12.5
Overall Length (in)
9.75
Performance
Lubrication Hole
Rating HP @ 100 RPM
375
Sleeve Type
Flanged
Speed Max (rpm)
5260
Style
FASTS
Temperature Range
-40 to +190 °F
Tooth Profile
Straight Faced Involute Hub tooth
Torque [Max] (in-lb)
472000
Torque Rating (in-lb)
236000
- 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. Exposed Bolt / Flex Rigid Coupling
| Brand | Consolidated Bearings |
| Model | HJ-313E |