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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.
- Note: Guard Rings are INCLUDED in a sub-assembly, along with two disc pack kits and a spacer. Unless ordered as a replacement part, guard rings are generally not ordered as a stand alone item.
Unit of Measure
Key Dimensions
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Dimensional Data
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Dimensional Data of Related Coupling
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Performance Data of Related Coupling
Key Dimensions
Description |
N/A DI202-6-GUARD RING |
Type |
N/A Disc |
Style |
N/A Guard Rings |
Color |
N/A Metallic |
Coupling Series |
N/A DI-6 |
Weight |
N/A 9.42 lb |
Weight (Complete Coupling w/ Max. Bores) |
N/A 84.00 lb38.00 Kg |
Dimensional Data
Height |
N/A 8.27 in |
Depth |
N/A 1.844 in |
Width |
N/A 8.27 in |
Cubic inches |
N/A 126.11651 in³ |
Dimensional Data of Related Coupling
Coupling Size |
N/A 202-6 |
Length thru Bore |
N/A 3.54 in89.92 mm |
Outside Diameter |
N/A 5.670 in144.00 mm |
Overall Length |
N/A 14.39 in366 mm |
Max. Bore (Dimensions ID) |
N/A 4.06 in102 mm |
Flange Diameter (Dimension FD) |
N/A 8.27 in210.00 mm |
Dimension PW |
N/A 1.844 in46.84 mm |
Dimension S |
N/A 4.120 in105.00 mm |
Distance between Shaft Ends (Dimension BSE) |
N/A 7.31 in186.00 mm |
Performance Data of Related Coupling
Temperature |
N/A -40 to 450 ºF |
Nominal Torque |
N/A 40700 in·lb4600 N·m |
Max. Torque |
N/A 81400 in·lb9200 N·m |
Max. Speed (Unbalanced) |
N/A 3840 rpm |
Max. Speed (Balanced) |
N/A 9600 rpm |
Axial Misalignment (∆ Ka) |
N/A 0.15 in3.8 mm |
Max. Angular Misalignment |
N/A 1.00 º |
Torsional Stiffness x 106 |
N/A 13.3 in·lb/rad1.50 Nm/rad |
Rated Power at 100 rpm |
N/A 64.6 hp48.2 kW |
