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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.
Unit of Measure
Items
DI-6 Type Drop-In Center Industrial Coupling Standard Hub Bolt Kits - Metric

DI-6 Type Spacer Sub-Assemblies

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

DI-6 Type Spacer Sub-Assemblies

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

DI-6 Type Spacer Sub-Assemblies

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

DI-6 Type Spacer Sub-Assemblies

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

DI-6 Type Spacer Sub-Assemblies
Description  N/A DI90-6-SUBASSY-BSE=3.5 N/A DI90-6-SUBASSY-BSE=4.38 N/A DI90-6-SUBASSY-BSE=5" N/A DI90-6-SUBASSY-BSE=7" N/A DI110-6-SUBASSY-BSE=3.5
Height N/A 3.7 in N/A 3.7 in N/A 3.7 in N/A 3.7 in N/A 4.53 in
Between Shaft Ends N/A 3.50 in N/A 4.38 in N/A 5.00 in N/A 7.00 in N/A 3.50 in
Width N/A 3.700 in N/A 3.700 in N/A 3.700 in N/A 3.700 in N/A 4.53 in
Coupling Size N/A 90-6 N/A 90-6 N/A 90-6 N/A 90-6 N/A 110-6
Hub Style N/A Standard
Type N/A Disc
Length thru Bore N/A 1.570 in39.88 mm N/A 1.570 in39.88 mm N/A 1.570 in39.88 mm N/A 1.570 in39.88 mm N/A 1.97 in50.04 mm
Style N/A Spacer Assembly
Outside Diameter N/A 2.360 in60.00 mm N/A 2.360 in60.00 mm N/A 2.360 in60.00 mm N/A 2.360 in60.00 mm N/A 2.870 in73.00 mm
Overall Length N/A 6.640 in168.656 mm N/A 7.520 in191.008 mm N/A 8.140 in206.756 mm N/A 10.140 in257.556 mm N/A 7.440 in188.976 mm
Color N/A Metallic
Temperature  N/A -40 to 450 ºF
Nominal Torque N/A 240 in·lb N/A 240 in·lb N/A 240 in·lb N/A 240 in·lb N/A 575.00 in·lb
Max. Torque N/A 4200 in·lb480 N·m N/A 4200 in·lb480 N·m N/A 4200 in·lb480 N·m N/A 4200 in·lb480 N·m N/A 10200 in·lb1150 N·m
Max. Bore (Dimensions ID) N/A 1.68 in43 mm N/A 1.68 in43 mm N/A 1.68 in43 mm N/A 1.68 in43 mm N/A 2.06 in52 mm
Max. Speed (Unbalanced) N/A 9100 rpm N/A 9100 rpm N/A 9100 rpm N/A 9100 rpm N/A 7200 rpm
Max. Speed (Balanced) N/A 22700 rpm N/A 22700 rpm N/A 22700 rpm N/A 22700 rpm N/A 18000 rpm
Flange Diameter (Dimension FD) N/A 3.7 in94.00 mm N/A 3.7 in94.00 mm N/A 3.7 in94.00 mm N/A 3.7 in94.00 mm N/A 4.53 in115.00 mm
Dimension PW N/A 3.500 in88.90 mm N/A 4.375 in111.13 mm N/A 5.000 in127.00 mm N/A 7.000 in177.80 mm N/A 3.500 in88.90 mm
Dimension S N/A 1.270 in32.00 mm N/A 1.270 in32.00 mm N/A 1.270 in32.00 mm N/A 1.270 in32.00 mm N/A 2.410 in61.00 mm
Distance between Shaft Ends (Dimension BSE) N/A 3.5 in79.00 mm N/A 4.375 in79.00 mm N/A 5 in79.00 mm N/A 7 in79.00 mm N/A 3.5 in108 mm
Axial Misalignment (∆ Ka) N/A 0.059 in1.50 mm N/A 0.059 in1.50 mm N/A 0.059 in1.50 mm N/A 0.059 in1.50 mm N/A 0.083 in2.1 mm
Max. Angular Misalignment N/A 1.50 º
Torsional Stiffness x 106 N/A 2.40 in·lb/rad0.30 Nm/rad N/A 2.40 in·lb/rad0.30 Nm/rad N/A 2.40 in·lb/rad0.30 Nm/rad N/A 2.40 in·lb/rad0.30 Nm/rad N/A 3.4 in·lb/rad0.40 Nm/rad
Rated Power at 100 rpm N/A 3.50 hp2.60 kW N/A 3.50 hp2.60 kW N/A 3.50 hp2.60 kW N/A 3.50 hp2.60 kW N/A 8 hp6 kW
Coupling Series N/A DI-6
Coupling Type N/A Drop in Spacer Assembly
Weight N/A 17.00 lb N/A 19.00 lb N/A 20.00 lb N/A 21.00 lb N/A 6.38 lb
Weight (Complete Coupling w/ Max. Bores) N/A 8.00 lb4.00 Kg N/A 8.00 lb4.00 Kg N/A 8.00 lb4.00 Kg N/A 8.00 lb4.00 Kg N/A 12.00 lb6.00 Kg
Cubic inches N/A 47.91500 in³ N/A 59.89375 in³ N/A 68.45000 in³ N/A 95.83000 in³ N/A 71.82315 in³