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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 Standard Hub Bolt Kits - Metric

Drop-In Center Industrial Jumbo Coupling
DI-6 Type Drop-In Center Industrial Coupling Standard Hub Bolt Kits - Metric

Drop-In Center Industrial Jumbo Coupling
DI-6 Type Drop-In Center Industrial Coupling Standard Hub Bolt Kits - Metric

Drop-In Center Industrial Jumbo Coupling w/ Rough Stock Bore
DI-6 Type Drop-In Center Industrial Coupling Standard Hub Bolt Kits - Metric

Drop-In Center Industrial Jumbo Coupling w/ Rough Stock Bore
Description  N/A DI90-6-CP-RSBXRSB-BSE=3.5-JUM BE N/A DI90-6-CP-RSBXRSB-BSE=5"-JUM BE N/A DI110-6-CP-RSBXRSB-BSE=5"-JUM BE N/A DI110-6-CP-RSBXRSB-BSE=7"-JUM BE
Size N/A 90-6 N/A 90-6 N/A 110-6 N/A 110-6
Hub Style N/A Jumbo
Type N/A Disc Coupling
Material N/A Steel
Set Screw Style Coupling Size (Dimension T) N/A No Setscrew
Keyway Size (W x D) 1 N/A No Keyway
Keyway Size (W x D) 2 N/A No Keyway
Weight N/A 12.97 lb N/A 13.33 lb N/A 25.12 lb N/A 25.81 lb
Length thru Bore N/A 1.570 in39.88 mm N/A 1.570 in39.88 mm N/A 1.97 in50.04 mm N/A 1.97 in50.04 mm
Style N/A Bored N/A Bored N/A Unbored N/A Unbored
Dimension FD N/A 3.700 in94.00 mm N/A 3.700 in94.00 mm N/A 4.53 in115 mm N/A 4.53 in115 mm
Overall Length N/A 6.640 in159.00 mm N/A 8.140 in159.00 mm N/A 8.94 in208 mm N/A 10.94 in208 mm
Color N/A Metallic
Temperature  N/A -40 to 450 ºF
Nominal Torque N/A 2100 in·lb N/A 2100 in·lb N/A 5100 in·lb N/A 5100 in·lb
Max. Torque N/A 4200 in·lb N/A 4200 in·lb N/A 10200 in·lb N/A 10200 in·lb
Bore Type N/A Rough Stock Bore
Max. Bore (Dimensions ID1/ID2) N/A 2.250 in59.00 mm N/A 2.250 in59.00 mm N/A 2.940 in75.00 mm N/A 2.940 in75.00 mm
Max. Speed (Unbalanced) N/A 22700.00 rpm N/A 22700.00 rpm N/A 18000 rpm N/A 18000 rpm
Max. Speed (Balanced) N/A 22700 rpm N/A 22700 rpm N/A 18000 rpm N/A 18000 rpm
Dimension HD N/A 2.360 in60.00 mm N/A 2.360 in60.00 mm N/A 2.87 in73 mm N/A 2.87 in73 mm
Dimension S N/A 1.270 in32.00 mm N/A 1.270 in32.00 mm N/A 2.410 in61.00 mm N/A 2.410 in61.00 mm
Distance between Shaft Ends (Dimension BSE) N/A 3.5 in54.00 mm N/A 5 in111.00 mm N/A 5 in108 mm N/A 7 in108 mm
Max. Angular Displacement (∆ Ka), n=1500 [1/min] N/A 1.5 º
Axial Misalignment (∆ Ka) N/A 0.059 in1.50 mm N/A 0.059 in1.50 mm N/A 0.083 in2.1 mm N/A 0.083 in2.1 mm
Torsional Stiffness x 106 N/A 2.40 in·lb/rad N/A 2.40 in·lb/rad N/A 3.4 in·lb/rad N/A 3.4 in·lb/rad
Rated Power at 100 rpm N/A 3.50 hp2.60 kW N/A 3.50 hp2.60 kW N/A 8 hp6 kW N/A 8 hp6 kW
Rated HP at 875 rpm (Standard Motor) N/A 3.50 hp N/A 3.50 hp N/A 8 hp N/A 8 hp
Rated HP at 1,150 rpm (Standard Motor) N/A 3.50 hp N/A 3.50 hp N/A 8 hp N/A 8 hp
Rated HP at 1,750 rpm (Standard Motor) N/A 3.50 hp N/A 3.50 hp N/A 8 hp N/A 8 hp
Rated HP at 3,500 rpm (Standard Motor) N/A 3.50 hp N/A 3.50 hp N/A 8 hp N/A 8 hp
Coupling Series N/A DI-6
Coupling Type N/A Disc
Cubic inches N/A 90.90160 in³ N/A 111.43660 in³ N/A 183.45685 in³ N/A 224.49865 in³