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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Disc Couplings > SX Type (Two Disc Pack) > SX-6 Type Hubs with Two Extra Keyways - Inch (Imperial) Bores > Part Number 69790498855  
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Part Number 69790498855, SX-6 Type Hubs with Two Extra Keyways - Inch (Imperial) Bores


    Note: SX Type Hubs are interchangeable for both the SU and SX style disc couplings (but not SXC style).
    The SU Type coupling has a single flex plane, and is comprised of a single disc pack kit with two hubs. It is suitable for angular and axial misalignment only. Two SU couplings are often combined with a shaft to make a floating shaft coupling. The shaft can be hollow for long light weight floating shaft couplings.
    The SX Type is the standard coupling type that includes two hubs, a stock length spacer designed to meet industry standard lengths, and two unitized disc packs. The coupling has two flex planes, one at each disc pack, allowing this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in 4, 6, and 8 bolt designs and bore sizes up to 13 inches (330mm) on the largest size. Custom spacer lengths can be manufactured to meet special shaft separations required for specific applications. The SX coupling can be fitted with overload bushings to protect the disc packs in over torque conditions and can act as an anti-flail device. SX couplings are assembled at the time of installation on the equipment where the coupling will be in service.



Unit of Measure: Imperial Metric Both

Notes  · Specifications  · Dimensional Data  · Performance Data  · Features

Notes

Disclaimer
Lovejoy: CAD Models are accurate envelope dimensions only. Features such as bore size and keyway are not rendered or are only representative. Contact Lovejoy Technical Support or refer to product catalogs for details.


Specifications

Description 
SX202-6-HUB-2-13/16-3/4X3/8KW-EXT KW

Hub Style
Standard

Type
Disc Coupling Hubs

Hub Material
AISI 1045

Style
Bored

Color
Metallic

Coupling Series
SX-6

Coupling Type
Disc

Weight
9.20 lb

Weight (Complete Coupling w/ Max. Bores)
46.30 lb


Dimensional Data

Bore Size 
2 13/16 in

Size
202-6

Set Screw Style Coupling Size (Dimension T)
No Setscrew

Keyway Size (W x D)
3/4 x 3/8 in

External Keyways
1/2 (external flange keyways) in

Length thru Bore
3.540 in
89.92 mm

Overall Length (for an SX Style coupling)
13.330 in
339.00 mm

Max. Bore (Dimensions ID1/ID2)
3.500 in
90.00 mm

Dimension FD
7.950 in
202.00 mm

Dimension HD
4.920 in
125.00 mm

Dimension PW
0.610 in
15.49 mm

Dimension S
5.030 in
128.00 mm

Distance between Shaft Ends (Dimension BSE)
6.250 in
159.00 mm

Cubic inches
223.73685 in³


Performance Data

Nominal Torque
40700 in·lb

Max. Torque
81400 in·lb

Max. Speed (Unbalanced)
3840 rpm

Max. Speed (Balanced)
9600 rpm

Axial Misalignment (+-D Ka) for couplings with TWO disc packs
0.15 in

Max. Angular Misalignment (per single disc pack)
1.00 º

Torsional Stiffness x 10^6 (of one disc pack)
13.3 in·lb/rad

Rated Power at 100 rpm
64.6 hp
48.2 kW


Features

Features 
  • Unitized disc pack
  • Infinite life when properly sized and aligned
  • Accommodates angular, axial, and parallel misalignment
  • Torsionally rigid without any back lash
  • No need for lubrication or maintenance
  • No wearing parts and high resistance to harsh environmental conditions
  • Overload Bushings are available



 DOWNLOADS 

Disc Coupling Catalog
(PDF, 0KB)

SX-6 Bolt Design Installation Instructions
(PDF, 0KB)

SX-6 Bolt Design Installation Video

SU Type Disc Coupling Installation Guide
(PDF, 0KB)

SU Type Disc Coupling Installation Video


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