Flex Coupling
Name Of Flex Coupling
Outside Diameter Of Hub
Connect Type
A Means Using Key To Connect.
B Means Using Tapered Ring Sets To Connect.
C Means Using Clamping Sleeve To Connect.
AB Means one shaft connected with Key, another
shaft connected with Tapered Ring Sets.
Related Products：Flex Coupling , Flex Coupling , Flex Coupling
To Select The Right Type Of Flex Coupling
1. Select the load factor lf from table 1 basis on the driven machine you want to use.
2. Calculate the torque ta from formula ta (kgf-m) = 974*p(kw)/n(rpm)*lf where p is input power, n is input rotary speed, lf is load factor.
3. Select the right type of flex coupling from specifications which allowable torque Tw is bigger than Ta. also check the Dmax from dimensions if it is bigger than the shaht bore diameter you want to use.
Example for Selection
Example：
Input power p is 120 kw, driven machine is centrifugal pump,input rotary speed n is 1800 prm, shaft bore diameter d is 50 mm,connected with key on both sides, try to select the right type of flex coupling.
Sol：
1. Select the load factor lf = 1.5 from table 1.
2. Calculate ta = 974*p/n*lf = 974*120/1800*1.5 = 64.9 kgf-m
3. Select the right type of flex coupling. that is cp-144 which allowable torque tw = 80 kgf-m is bigger than ta = 64.9kgf. also dmax = 60 mm of cp-144 is bigger than the shaft bore diameter d=50mm.
Load Factor Lf Table11. Blower Labe 1.75 Vone 1.5 Centrifugal 1.5 2. Chain Conveyors Uniformly 1.5 Heavy Duty 1.75 3. Chemical Machine Reactor Drive 1.75 Liquid Static Agitator 1.5 Liquid Variable Agitator 2.0 Centrifuger 1.75 4. Compressors Centrifugal 1.5 Axial 1.75 5. Cranes-Hoists Main Hoist 1.5 Heavy Duty 2.25 Medium Duty 1.75 Skip Hoist 1.75 6. Elevator Bucket 1.5 niform Load 1.5 Continuous 1.5 Heavy Duty 1.75 7. Food Machine Removal Machine 1.5 Packing Machine 1.5 Meat Grinder 1.75 Atomizer 1.75 8. Metal Working Machine Bending Machine 1.75 Cutting Machine 1.5 Hammer 2.25 Forging Press 2.0 Shear 2.0 9. Paper Mills Smooth Cylinder 2.0 Wood Cutter 1.75 Wood Grinder 2.25 Baking Cylinder 1.75 10. Plastic Calender 1.75 Extruder Variable Speed 1.75 Fixed Speed 2.0 Batch Mixer 2.0 Continuous Mixer 1.75 11. Pump Centrifugal 1.5 Single or Double Act 2 or More Cylinder 1.75 Gear 1.5 Feed Water Pump 1.75 Drain Pump 1.75 12. Rubber Caiender 1.75 Extruder Continuous 1.75 Intermittent 2.0 Mixer Mill 1.75 Refiner 1.75 13. Suger Machine Crusher 1.75 Cutter 2.0 14. Textile Machine Calender 1.75 Card Machine 1.75 Dryer 1.75 Pad 1.75 15. Roller Work Main Drive 2.0 Strip Roller 2.0 Block & Slab Roller 2.25 Wire Rod Mill 1.75 Heavy Place Rolling Train 2.5 Block Pusher 2.25 Straight Machine 1.75 Cooling Bed Drive 1.75 Shifting Device 2.2 Plate Reverser 1.75