Lovejoy Rigid Sleeve couplings fit the standards of the industry. These couplings, the simplest type, provide a fixed union between two shafts which are precisely aligned. They are suitable for use in joining any two shafts when flexibility is not required, shaft alignment is maintained and proper bearing support is provided. Bore tolerances are -.000/+.002.
Unit of Measure



N/A SC1375 CPLG 1-3/8 5/16K W/SS


N/A Rigid Coupling


N/A Steel


N/A 4.37 lb


N/A Rigid


N/A Gray/Metallic

Bore Type

N/A Finished Bore

Coupling Type

N/A Rigid

UPC Number

N/A 14352

Dimensional Data

Bore Size 

N/A 1 3/8 in


N/A SC1375

Bolt Size (Dimension T)

N/A 3/8-16 x 3/8

Keyway Size 

N/A 5/16 x 5/32 in

Outside Diameter

N/A 2.500 in

Overall Length

N/A 4.500 in

Dimension SL

N/A 1.000 in25.40 mm

Cubic inches

N/A 28.12500 in³

Performance Data

Normal Temperature Range

N/A -40 to 1000 ºF

Nominal Torque

N/A Determined by Key Stock Material

Max. Speed

N/A 3600.00 rpm