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    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

Notes

Disclaimer

 N/A 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 

 N/A SX90-6-CP-.876X1.126-BSE=3.5-2SS90BE

Bore Size  

 N/A 0.876 & 1.126 in

Hub Style

 N/A Standard

Type

 N/A Disc Coupling

Material

 N/A Steel

Style

 N/A Bored

Weight

 N/A 5.67 lb

Color

 N/A Metallic

Connection Type A x B 

 N/A 7/8 x 1 1/8 in22.225 x 28.575 mm

Coupling Series

 N/A SX-6

Coupling Type

 N/A Disc

Dimensional Data

Size

 N/A 90-6

Hub 1 Keyway (W x D)

 N/A 3/16 x 3/32 in

Hub 2 Keyway (W x D)

 N/A 1/4 x 1/8 in

Length thru Bore

 N/A 1.570 in39.88 mm

Dimension FD

 N/A 3.540 in90.00 mm

Overall Length

 N/A 6.640 in134.00 mm

Max. Bore (Dimensions ID1/ID2)

 N/A 1.5 in38 mm

Dimension HD

 N/A 2.280 in58.00 mm

Dimension PW

 N/A 0.295 in7.49 mm

Dimension S

 N/A 1.770 in45 mm

Distance between Shaft Ends (Dimension BSE)

 N/A 3.5 in88.9 mm

Cubic inches

 N/A 83.20982 in³

Performance Data

Temperature 

 N/A -40 to 450 ºF

Nominal Torque

 N/A 2100 in·lb240 N·m

Max. Torque

 N/A 4200 in·lb480 N·m

Max. Speed (Unbalanced)

 N/A 9100 rpm

Max. Speed (Balanced)

 N/A 22700 rpm

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

 N/A 0.059 in1.50 mm

Max. Angular Misalignment (per single disc pack)

 N/A 1.50 º

Torsional Stiffness x 10^6 (of one disc pack)

 N/A 2.40 in·lb/rad0.30 Nm/rad

Rated Power at 100 rpm

 N/A 3.50 hp2.60 kW

Rated HP at 875 rpm (Standard Motor)

 N/A 3.50 hp

Rated HP at 1,150 rpm (Standard Motor)

 N/A 3.50 hp

Rated HP at 1,750 rpm (Standard Motor)

 N/A 3.50 hp

Rated HP at 3,500 rpm (Standard Motor)

 N/A 3.50 hp

Features

Features 

 N/A
  • 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
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