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    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.
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DI-6 Type Drop-In Center Industrial Coupling Hubs - Metric

DI-6 Type Hubs with Keyway - Metric Bores
DI-6 Type Drop-In Center Industrial Coupling Hubs - Metric

DI-6 Type Hubs with Keyway - Metric Bores
Description  N/A DI110-6-HUB-28.021MM-8X3.3MMKW-2SS90 N/A DI132-6-HUB-55MMP7-16X4.3MMKW
Bore Size N/A 28.00 mm N/A 55.00 mm
Size N/A 110-6 N/A 132-6
Hub Style N/A Standard
Type N/A Disc Coupling Hubs
Hub Material N/A AISI 1045
Set Screw Style Coupling Size (Dimension T) N/A M8 x 12 N/A No Setscrew
Keyway Size (W x D) N/A 8 X 3.3 mm N/A 16 x 4.3 mm
Length thru Bore N/A 1.970 in50.04 mm N/A 2.36 in59.94 mm
Style N/A Bored
Overall Length N/A 8.19 in208 mm N/A 9.100 in231 mm
Color N/A Metallic
Nominal Torque N/A 5100 in·lb575 N·m N/A 9700 in·lb1100 N·m
Max. Torque N/A 10200 in·lb1150 N·m N/A 19200 in·lb2200 N·m
Max. Bore (Dimensions ID1/ID2) N/A 2.06 in52 mm N/A 2.69 in67 mm
Max. Speed (Unbalanced) N/A 7200 rpm N/A 5840 rpm
Max. Speed (Balanced) N/A 18000 rpm N/A 14600 rpm
Dimension FD N/A 4.53 in115 mm N/A 5.47 in139 mm
Dimension HD N/A 2.87 in73 mm N/A 3.74 in95 mm
Dimension S N/A 2.410 in61.00 mm N/A 2.540 in64.00 mm
Distance between Shaft Ends (Dimension BSE) N/A 4.25 in108 mm N/A 4.380 in111.00 mm
Axial Misalignment (∆ Ka) N/A 0.083 in2.1 mm N/A 0.102 in2.6 mm
Max. Angular Misalignment N/A 1.50 º
Torsional Stiffness x 106 N/A 3.4 in·lb/rad0.40 Nm/rad N/A 4.4 in·lb/rad0.50 Nm/rad
Rated Power at 100 rpm N/A 8 hp6 kW N/A 15.4 hp11.5 kW
Coupling Series N/A DI-6
Coupling Type N/A Disc
Weight N/A 44.93 lb N/A 6.42 lb
Weight (Complete Coupling w/ Max. Bores) N/A 12.00 lb6.00 Kg N/A 22.00 lb10.00 Kg
Cubic inches N/A 40.42617 in³ N/A 70.61332 in³