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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: If not a re-order, please call to confirm/verify complete finished bore coupling design prior to ordering.
Unit of Measure

Specifications

Description 

 N/A DI110-6-CP-1.7490X50MMH7-BSE=4.25

Hub Style

 N/A Standard

Type

 N/A Disc Coupling

Material

 N/A Steel

Style

 N/A Bored

Color

 N/A Metallic

Coupling Series

 N/A DI-8

Coupling Type

 N/A Disc

Dimensional Data

Size

 N/A 110-6

Bore Size 

 N/A 1.749 & 50mm in

Keyway 1 (W x D)

 N/A 3/8 x 3/16 in

Keyway 2 (W x D)

 N/A 14 x 3.8 mm in

Length thru Bore

 N/A 1.97 in50.04 mm

Dimension FD

 N/A 4.53 in115 mm

Overall Length

 N/A 8.19 in208 mm

Max. Bore (Dimensions ID1/ID2)

 N/A 2.06 in52 mm

Dimension HD

 N/A 2.87 in73 mm

Distance between Shaft Ends (Dimension BSE)

 N/A 4.25 in108 mm

Cubic inches

 N/A 168.06617 in³

Performance Data

Temperature 

 N/A -40 to 450 ºF

Nominal Torque

 N/A 5100 in·lb

Max. Torque

 N/A 10200 in·lb

Max. Speed (Unbalanced)

 N/A 18000 rpm

Max. Speed (Balanced)

 N/A 18000 rpm

Max. Angular Displacement (∆ Ka), n=1500 [1/min]

 N/A 1.5 º

Axial Misalignment (∆ Ka)

 N/A 0.083 in2.1 mm

Torsional Stiffness x 106

 N/A 3.4 in·lb/rad

Rated Power at 100 rpm

 N/A 8 hp6 kW

Rated HP at 875 rpm (Standard Motor)

 N/A 8 hp

Rated HP at 1,150 rpm (Standard Motor)

 N/A 8 hp

Rated HP at 1,750 rpm (Standard Motor)

 N/A 8 hp

Rated HP at 3,500 rpm (Standard Motor)

 N/A 8 hp

Features

Features 

 N/A
  • Designed to meet the API 610 Standard
  • Support for additional API requirements available on request
  • Unitized disc pack
  • Infinite life if properly aligned
  • Torsionally rigid without any back lash
  • No need for lubrication or maintenance
  • No wearing parts and high resistance to harsh environmental conditions
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