Menu
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information
    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

Specifications

Description 

 N/A DI255-6-GUARD RING

Type

 N/A Disc

Style

 N/A Guard Rings

Color

 N/A Metallic

Coupling Series

 N/A DI-6

Weight

 N/A 20.66 lb

Weight (Complete Coupling w/ Max. Bores)

 N/A 159.00 lb72.00 Kg

Dimensional Data

Height

 N/A 10.350 in

Depth

 N/A 2.498 in

Width

 N/A 10.350 in

Cubic inches

 N/A 267.59201 in³

Dimensional Data of Related Coupling

Coupling Size

 N/A 255-6

Length thru Bore

 N/A 4.530 in115.06 mm

Outside Diameter

 N/A 6.890 in175.00 mm

Overall Length

 N/A 18.940 in481.00 mm

Max. Bore (Dimensions ID)

 N/A 4.940 in125 mm

Flange Diameter (Dimension FD)

 N/A 10.350 in263.00 mm

Dimension PW

 N/A 2.498 in63.45 mm

Dimension S

 N/A 5.510 in140.00 mm

Distance between Shaft Ends (Dimension BSE)

 N/A 9.880 in251.00 mm

Performance Data of Related Coupling

Temperature 

 N/A -40 to 450 ºF

Nominal Torque

 N/A 90300.00 in·lb10200.00 N·m

Max. Torque

 N/A 180600.00 in·lb20400.00 N·m

Max. Speed (Unbalanced)

 N/A 3080.00 rpm

Max. Speed (Balanced)

 N/A 7700.00 rpm

Axial Misalignment (∆ Ka)

 N/A 0.185 in4.70 mm

Max. Angular Misalignment

 N/A 1.00 º

Torsional Stiffness x 106

 N/A 41.00 in·lb/rad4.70 Nm/rad

Rated Power at 100 rpm

 N/A 143.20 hp106.80 kW
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.