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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 Standard Hub Bolt Kits > Part Number 69790493905  
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Part Number 69790493905, DI-6 Type Standard Hub Bolt Kits


    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: Bolt kits are generally INCLUDED when ordering a DI type hub. Unless ordered as a replacement part, bolt kits 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  · Features

Specifications

Description 
255-6/263-6-HUB BOLT KIT-STD

Hub Style
Standard

Coupling Size
255-6

Coupling Series
DI-6

Type
Hub Bolt Kits

Material
Steel

Application
Drop In Disc Coupling Design Bolt Kit

Number of Pieces
6

Weight
6.70 lb

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

Coupling Type
Gear


Dimensional Data

Width
12.000 in

Height
9.000 in

Depth
1.00 in

Cubic inches
108.00000 in³


Dimensional Data of Related Coupling

Overall Length
18.940 in
481.00 mm

Max. Bore (Dimensions ID1/ID2)
4.940 in
125 mm

Length thru Bore
4.530 in
115.06 mm

Dimension HD
6.890 in
175.00 mm

Dimension FD
10.350 in
263.00 mm

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

Dimension S
5.510 in
140.00 mm


Performance Data of Related Coupling

Max. Speed (Unbalanced)
3080.00 rpm

Max. Speed (Balanced)
7700.00 rpm

Nominal Torque
90300.00 in·lb
10200.00 N·m

Max. Torque
180600.00 in·lb
20400.00 N·m

Axial Misalignment (∆ Ka)
0.185 in
4.70 mm

Max. Angular Misalignment
1 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


Features

Features 
  • 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


 MORE IMAGES 

·  DI Type Drop-In Center Industrial Coupling Jumbo Hub Bolt Kits - Sectional View

·  Axial Misalignment vs. Angular Misalignment - Disc Copling

·  Standard Spacer Sizes


 DOWNLOADS 

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

Disc Coupling Catalog
(PDF, 0KB)


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