- The DI Type coupling has a “Drop-In” spacer assembly that is assembled at the factory. The coupling consists of two hubs and a spacer assembly comprising of the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted to the spacer and guard rings at the factory using the torque values recommended by Lovejoy for the disc pack bolts. With the hubs mounted on the shafts, the entire disc pack assembly can be “Dropped In” place between the two hubs. The hubs are piloted to ensure proper centering of the spacer assembly. This piloting serves as an anti-flail feature and aids in the coupling’s ability to meet the balance standards mandated by API. This style coupling is designed to meet the balance and anti-flail requirements specified in API-610.
Oversized, or Jumbo, hubs are available for use with the DI Type coupling to allow for larger bore sizes on most DI coupling sizes. This allows for the use of smaller DI couplings in applications where a smaller size coupling can still accommodate the application torque.
Unit of Measure
Specifications
Description |
N/A DI278-6-HUB JUMBO-RSB |
Hub Style |
N/A Jumbo |
Type |
N/A Disc Coupling Hubs |
Hub Material |
N/A AISI 1045 |
Style |
N/A Unbored |
Color |
N/A Metallic |
Bore Type |
N/A Rough Stock Bore |
Coupling Series |
N/A DI-6 |
Coupling Type |
N/A Disc |
Weight |
N/A 27.00 lb |
Weight (Complete Coupling w/ Max. Bores) |
N/A 223.00 lb |
Dimensional Data
Size |
N/A 278-6 |
Set Screw Style Coupling Size (Dimension T) |
N/A No Setscrew |
Length thru Bore |
N/A 4.920 in124.97 mm |
Overall Length |
N/A 19.900 in505.00 mm |
Max. Bore (Dimensions ID1/ID2) |
N/A 7.310 in185.00 mm |
Dimension FD |
N/A 11.260 in286.00 mm |
Dimension S |
N/A 5.630 in143.00 mm |
Distance between Shaft Ends (Dimension BSE) |
N/A 10.060 in256.00 mm |
Cubic inches |
N/A 623.79499 in³ |
Performance Data
Nominal Torque |
N/A 125700.00 in·lb |
Max. Torque |
N/A 251400.00 in·lb |
Max. Speed (Unbalanced) |
N/A 2800.00 rpm |
Max. Speed (Balanced) |
N/A 7000.00 rpm |
Axial Misalignment (∆ Ka) |
N/A 0.205 in |
Max. Angular Misalignment |
N/A 1.00 º |
Torsional Stiffness x 106 |
N/A 63.00 in·lb/rad |
Rated Power at 100 rpm |
N/A 199.50 hp148.80 kW |
Features
Features |
N/A
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