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DI255-6 SUB-ASSY BSE=9.88

BRAND: LoveJoy | MODEL: 69790494615 | CONDITION: NEW | SKU: 1800559
DI255-6 SUB-ASSY BSE=9.88

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Weight: 51.00 lbs UOM: EA

Additional Description

Technical Specifications

Width 10.350 in
OD 6.890 in



    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.
Description DI255-6 SUB-ASSY BSE=9.88
Hub StyleStandard
StyleSpacer Assembly
Coupling SeriesDI-6
Coupling TypeDrop in Spacer Assembly
Weight51.00 lb
Weight (Complete Coupling w/ Max. Bores)159.00 lb72.00 kg
Dimensional Data
Height10.350 in
Between Shaft Ends9.88 in
Width10.350 in
Cubic inches1058.37030 in³
Dimensional Data of Related Coupling
Coupling Size255-6
Length thru Bore4.530 in115.06 mm
Outside Diameter6.890 in175.00 mm
Overall Length18.940 in481.076 mm
Max. Bore (Dimensions ID)4.940 in125 mm
Flange Diameter (Dimension FD)10.350 in263.00 mm
Dimension PW9.880 in250.95 mm
Dimension S5.510 in140.00 mm
Distance between Shaft Ends (Dimension BSE)9.880 in251.00 mm
Performance Data of Related Coupling
Temperature -40 to 450 ºF
Nominal Torque10200.00 in·lb
Max. Torque180600.00 in·lb20400.00 N·m
Max. Speed (Unbalanced)3080.00 rpm
Max. Speed (Balanced)7700.00 rpm
Axial Misalignment (∆ Ka)0.185 in4.70 mm
Max. Angular Misalignment1.00 º
Torsional Stiffness x 10641.00 in·lb/rad4.70 Nm/rad
Rated Power at 100 rpm143.20 hp106.80 kW
  • 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