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Kop-Flex 4F SB FF is a Size 4 FASTS gear coupling with standard bore and finished bore flanged configuration. It features a 12.5" outside diameter and 4.25" maximum bore. The FASTS design includes a lifetime metallic seal and 300% greater lubricant capacity for extended service life. This lubricated coupling is suitable for high-torque industrial applications. Rexnord PN 2275881.
MODEL 2275881
Contact supplier for technical support on: 800-626-2120
$5,304.61 Each
Prices are subject to change
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Returnable:No
Bolt Circle
10.625
Bolt Type
Shrouded
Bore Size Max
4.25
Bore Type
Rough Bore
Configuration
Full Flex
Coupling Size
4
Coupling Type
Gear Coupling
Fastener Quantity
14
Fastener Size & Length
5/8 x 1 5/8
Length Through Bore (in)
4.75
Lube/Non-Lube
Lubricated
Material
Medium Carbon Steel
Measurement System
Imperial
Min Compatible Bore Size (in)
2.625
OD
12.5
Overall Length (in)
9.75
Rating HP @ 100 RPM
375
Sleeve Type
Flanged
Speed Max (rpm)
5260
Style
FASTS
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.
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