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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Disc Couplings > DI Type (Drop-In Spacer) > DI-6 Type Guard Rings (Not Sub-Assemblies) > Part Number 69790492066  
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Part Number 69790492066, DI-6 Type Guard Rings (Not Sub-Assemblies)


    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: Imperial Metric Both

Specifications  · Dimensional Data  · Dimensional Data of Related Coupling  · Performance Data of Related Coupling

Specifications

Description 
DI255-6-GUARD RING

Type
Disc

Style
Guard Rings

Color
Metallic

Coupling Series
DI-6

Weight
20.66 lb

Weight (Complete Coupling w/ Max. Bores)
159.00 lb
72.00 Kg


Dimensional Data

Height
10.350 in

Depth
2.498 in

Width
10.350 in

Cubic inches
267.59201 in³


Dimensional Data of Related Coupling

Coupling Size
255-6

Length thru Bore
4.530 in
115.06 mm

Outside Diameter
6.890 in
175.00 mm

Overall Length
18.940 in
481.00 mm

Max. Bore (Dimensions ID)
4.940 in
125 mm

Flange Diameter (Dimension FD)
10.350 in
263.00 mm

Dimension PW
2.498 in
63.45 mm

Dimension S
5.510 in
140.00 mm

Distance between Shaft Ends (Dimension BSE)
9.880 in
251.00 mm


Performance Data of Related Coupling

Temperature 
-40 to 450 ºF

Nominal Torque
90300.00 in·lb
10200.00 N·m

Max. Torque
180600.00 in·lb
20400.00 N·m

Max. Speed (Unbalanced)
3080.00 rpm

Max. Speed (Balanced)
7700.00 rpm

Axial Misalignment (∆ Ka)
0.185 in
4.70 mm

Max. Angular Misalignment
1.00 º

Torsional Stiffness x 106
41.00 in·lb/rad
4.70 Nm/rad

Rated Power at 100 rpm
143.20 hp
106.80 kW


 MORE IMAGES 

·  DI-6 Type Drop-In Center Industrial Coupling - Metric-2


 DOWNLOADS 

Disc Coupling Catalog
(PDF, 0KB)

DI Type Disc Coupling Installation Instructions
(PDF, 0KB)


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