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Kop-Flex 3F SB FR (Rexnord 2280741) Size 3 FASTS gear coupling with standard rough bore, 9.4375" outside diameter, and 3.125" maximum bore. Lifetime metallic seal and 300% greater lubricant capacity extend service life in high-torque industrial applications. Lubricated design ensures reliable power transmission.
MODEL 2280741
Contact supplier for technical support on: 800-626-2120
$2,517.37 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
Bolt Type
Shrouded
Bore Size Max
3.125
Bore Type
Rough Bore
Configuration
Flex Rigid
Coupling Size
3
Coupling Type
Gear Coupling
Fastener Quantity
12
Fastener Size & Length
1/2 x 1 5/16
Hub Diameter (in)
6.75
Length Through Bore (in)
3.46875
Lube/Non-Lube
Lubricated
Material
Medium Carbon Steel
Max Bore w/standard key for Flex Hub
3.125
Measurement System
Imperial
Min Compatible Bore Size (in)
0
Min Compatible Bore Size Flex Hub (in)
0
Min Compatible Bore Size Rigid Hub (in)
1.375
OD
9.4375
Overall Length (in)
7.376
Rating HP @ 100 RPM
160
Sleeve Type
Flanged
Speed Max (rpm)
6800
Style
FASTS
Tooth Profile
Straight Faced Involute Hub tooth
Torque [Max] (in-lb)
202000
Torque Rating (in-lb)
101000
- 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.
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