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Cross Joint Coupling
SCJ Series

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  • Why Couplings?
  • Installation Guide
  • Selection Guide
  • Customer-friendly Services
  • Made-To-Order Process
  • Varieties for Special Environments
  • Balancing Correction
  • Engineering Change Notice

SCJ Series

Cross Joint Coupling

  • SCJ – 2D (.dwg)
  • SCJ – 3D (.step)

Side-clamp

Dimensions / Performance
Model CAD Size (±0.3mm) Screw Rated
Torque
(N·m)
Max.
Torque
(N·m)
Max.
rpm
(min-1)
Moment
of
Inertia
(kg·m2)
Static
Torsional
Stiffness
(N·m/rad)
Mass
(g)
Permissible Misalignment
D L L1 F Size Fastening
Torque
(N·m)
Angular
(˚)
Parallel
(mm)
SCJA-15C 15 22.2 8 3 M2.6 1 0.25 0.5 21,000 3.3×10-7 220 9 1.5 0.3
SCJB-15C 15 24.2 8 3 M2.6 1 0.25 0.5 18,000 3.5×10-7 200 10 2 0.3
SCJA-20C 20 23.4 7.9 2.8 M2.6 1 0.5 1 16,000 1.2×10-6 350 19 1.5 0.5
SCJB-20C 20 26.4 7.9 2.8 M2.6 1 0.5 1 12,000 1.3×10-6 300 20 2 0.5
SCJA-25C 25 30.4 10.4 3.6 M3 1.7 1 2 12,000 3.3×10-6 800 34 1.5 0.5
SCJB-25C 25 33.4 10.4 3.6 M3 1.7 1 2 9,000 3.4×10-6 700 35 2 0.5
SCJA-32C 32 39 13.5 4.4 M4 3.5 2 4 9,000 1.1×10-5 1,200 72 1.5 0.5
SCJB-32C 32 43 13.5 4.4 M4 3.5 2 4 7,000 1.2×10-5 1,000 75 2 0.5
SCJA-40C 40 45.6 16 5.9 M5 8 5 10 7,000 3.2×10-5 1,900 140 1.5 0.5
SCJB-40C 40 51 16 5.9 M5 8 5 10 5,000 3.3×10-5 1,800 145 2 0.5
  • The Moment of Inertia and Mass values are based on products with max. Inner diameter.
  • Max. torque/rated torque is the value regarding to a coupling’s self-durability and is not related to slip-torque between the coupling bore and the shaft.
Standard Inner Diameter (ID)
Model Standard Inner Diameter (d1, d2) (mm)
3 4 5 6 6.35 8 10 11 12 14 15
SCJ□-15C
SCJ□-20C
SCJ□-25C
SCJ□-32C
SCJ□-40C
  • The recommended shaft tolerance is h7.
  • Custom process (e.g. non-standard Inner diameter, special tolerance etc.) is also available upon a special request in prior to order placement.
  • Keyway is available. (Optional)