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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

DI-6 Type Complete Couplings - Rough Stock Bore
DI-6 Type Drop-In Center Industrial Coupling Standard Hub Bolt Kits - Metric

DI-6 Type Complete Couplings - Rough Stock Bore
DI-6 Type Drop-In Center Industrial Coupling Standard Hub Bolt Kits - Metric

DI-6 Type Complete Couplings - Rough Stock Bore
DI-6 Type Drop-In Center Industrial Coupling Standard Hub Bolt Kits - Metric

DI-6 Type Complete Couplings - Rough Stock Bore
Description  N/A DI90-6-CP-RSBXRSB-BSE=3.5 N/A DI132-6-CP-RSBXRSB-BSE=7" N/A DI158-6-CP-RSBXRSB-BSE=7" N/A DI185-6-CP-RSBXRSB-BSE=7"
Size N/A 90-6 N/A 132-6 N/A 158-6 N/A 185-6
Hub Style N/A Standard
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
Length thru Bore N/A 1.570 in39.88 mm N/A 2.36 in59.94 mm N/A 2.76 in70.1 mm N/A 3.150 in80.01 mm
Weight N/A 8.63 lb N/A 29.16 lb N/A 49.56 lb N/A 79.78 lb
Style N/A Unbored
Dimension FD N/A 3.700 in94.00 mm N/A 5.47 in139 mm N/A 6.5 in165 mm N/A 7.600 in193.00 mm
Overall Length N/A 6.640 in159.00 mm N/A 11.72 in231 mm N/A 12.52 in280 mm N/A 13.900 in320.00 mm
Color N/A Metallic
Temperature N/A -40 to 450 ºF
Temperature  N/A -40 to 450 ºF
Nominal Torque N/A 2100 in·lb N/A 9700 in·lb N/A 17700 in·lb N/A 29200 in·lb
Max. Torque N/A 4200 in·lb N/A 19200 in·lb N/A 35400 in·lb N/A 58400 in·lb
Bore Type N/A Rough Stock Bore x Rough Stock Bore
Max. Bore (Dimensions ID1/ID2) N/A 1.68 in43 mm N/A 2.69 in67 mm N/A 3.13 in80 mm N/A 3.750 in95 mm
Max. Speed (Unbalanced) N/A 22700.00 rpm N/A 14600 rpm N/A 12300 rpm N/A 10500.00 rpm
Max. Speed (Balanced) N/A 22700 rpm N/A 14600 rpm N/A 12300 rpm N/A 10500 rpm
Dimension HD N/A 2.360 in60.00 mm N/A 3.74 in95 mm N/A 4.41 in112 mm N/A 5.280 in134.00 mm
Dimension S N/A 1.270 in32.00 mm N/A 2.540 in64.00 mm N/A 3.120 in79.00 mm N/A 3.480 in88.00 mm
Distance between Shaft Ends (Dimension BSE) N/A 3.5 in54.00 mm N/A 7 in108 mm N/A 7 in108 mm N/A 7 in108 mm
Connection Type A x B  N/A Rough Stock Bore x Rough Stock Bore
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 0.102 in2.6 mm N/A 0.122 in3.1 mm N/A 0.146 in3.70 mm
Torsional Stiffness x 106 N/A 2.40 in·lb/rad N/A 4.4 in·lb/rad N/A 5.8 in·lb/rad N/A 11.50 in·lb/rad
Rated Power at 100 rpm N/A 3.50 hp2.60 kW N/A 15.4 hp11.5 kW N/A 28.2 hp21 kW N/A 46.30 hp34.50 kW
Rated HP at 875 rpm (Standard Motor) N/A 3.50 hp N/A 15.4 hp N/A 28.2 hp N/A 46.30 hp
Rated HP at 1,150 rpm (Standard Motor) N/A 3.50 hp N/A 15.4 hp N/A 28.2 hp N/A 46.30 hp
Rated HP at 1,750 rpm (Standard Motor) N/A 3.50 hp N/A 15.4 hp N/A 28.2 hp N/A 46.30 hp
Rated HP at 3,500 rpm (Standard Motor) N/A 3.50 hp N/A 15.4 hp N/A 28.2 hp N/A 46.30 hp
Coupling Series N/A DI-6
Coupling Type N/A Disc
Cubic inches N/A 90.90160 in³ N/A 350.67295 in³ N/A 528.97000 in³ N/A 802.86400 in³