• Medium torque
  • Allows smaller diameter hubs
  • Exceptional concentricity
  • Self-centering
  • Axial hub position fixed during clamping
  • Metric shafts 6 mm to 130 mm
  • Inch shafts 3/4 to 2-15/16 inch
  • Larger sizes on request
  • 10 - 18,618 ft-lb
Unit of Measure



N/A SLD 1900 MM 20X28

Coupling Size

N/A SLD1900


N/A Internal

Collar Material

N/A Silver/Metallic


N/A 0.66 lb

Screw Type

N/A Socket Head Cap Screw

Screw Material

N/A Steel


N/A Self Centering


N/A Internal Shaft Locking Device

# of Locking Screws

N/A 4

Dimensional Data

Shaft Size 

N/A 20 x 28 mm

Hub Outside Diameter (Dimension d)

N/A 0.787 in20.00 mm

Tolerance of Shaft (T1)

N/A +0 -0.0013 in

Shaft Locking Device Outside Diameter (Dimension D)

N/A 1.102 in28.00 mm

Tolerance of Hub Bore (T2)

N/A -0 +0.0013 in

Thrust Rings Width at Relaxed State (Dimension B)

N/A 1.496 in38.00 mm

Locking Screw Size (Dimension T)

N/A M6

Diameter to Flange (Dimension D1)

N/A 1.929 in49.00 mm

Contact Length (Dimension l)

N/A 0.709 in18.00 mm

Total Width at Relaxed State (Dimension L)

N/A 1.732 in43.99 mm

Cubic inches

N/A 2.10335 in³53.42503 mm³

Performance Data

Max. Transmissible Axial Force

N/A 5395.00 lbf

Max. Transmissible Torque

N/A 168.00 ft·lb

Screw Tightening Torque

N/A 12.50 ft·lb

Pressure on The Hub

N/A 17405.00 psi

Pressure on The Shaft

N/A 13343.00 psi



N/A Versus Traditional Keyed Connections
  • No Backlash due to fit tolerances
  • No impact effect from reversing loads
  • Ability to adjust axial position and angular timing
  • No fretting corrosion due to movement at the fit interface
Versus Traditional Interference Fits
  • Easier and quicker to install
  • Higher contact pressures can transmit greater torques
  • Easy and quick to remove without damaging the shaft or hub - even after years of service
Design Benefits
  • Eliminate cost of machining keyways or splines
  • Reduce the shaft stress by removing keyways or splines
  • Eliminating keyways often allows the use of a smaller diameter shaft
  • Can place anywhere on shaft, and allows for easy angular timing
  • Easy removal without damaging the shaft or hub means easier maintenance for your customer