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Oldham Coupling
SOH Series

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SOH Series

Go to SOH Series(Index)

Oldham Coupling_Polyacetal(POM)/ General

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

Set-screw

Dimensions / Performance
SOH-(no mark)
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)		 End-
play
(mm)
SOH-6 5.9 8.4 2.5 1.3 M2 0.3 0.2 0.4 22,000 2.5 x 10-9 5 0.5 1.5 0.5 0.05
SOH-8 7.9 9.8 2.5 1.3 M2 0.3 0.5 1 20,000 8.4 x 10-9 10 0.9 1.5 0.7 0.05
SOH-10 9.9 10.4 2.9 1.5 M2 0.3 0.7 1.4 18,000 2.4 x 10-8 25 1.7 1.5 0.9 0.05
SOH-12 11.9 14.5 3.9 2 M3 0.7 0.9 1.8 15,000 6.3 x 10-8 55 3 1.5 1 0.05
SOH-16 16 17.9 4.7 2.2 M3 0.7 1 2 13,000 2.4×10-7 65 7 1.5 1 0.1
SOH-20 20 19.9 5.1 2.4 M4 1.7 1.5 3 11,000 6.4×10-7 120 12 1.5 1.5 0.1
SOH-25 25.5 25.4 6.9 3.1 M4 1.7 2.5 5 10,000 2.2×10-6 200 24 1.5 2 0.1
SOH-32 32 31.9 8 3.8 M5 4 7 14 9,000 6.3×10-6 620 41 1.5 2.5 0.2
SOH-43 43 52 16.5 7.1 M5 4 12.5 25 8,000 3.7×10-5 1,200 135 1.5 3 0.15
SOH-53 53 58.3 19.5 7.5 M6 7 20 40 7,000 1.0×10-4 1,400 228 1.5 3.2 0.15
SOH-57 57 76.2 26.9 9.9 M8 15 34 68 6,000 1.8×10-4 2,600 345 1.5 3.5 0.2
SOH-70 73 75.5 25 12.2 M8 15 60 120 4,500 4.5×10-4 5,000 567 1.5 3.5 0.2
  • The Moment of Inertia and Mass values are based on products with max. Inner diameter.
  • Please modify rated/max. torque value with temperature correction factor when it’s higher than 30°C.
  • 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. (Set-screw type is usually less durable than other clamping method, thus please consider it has a complementary option e.g. keyway along with.)
SOH-S
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 L2 F1 F2 Size Fastening
Torque
(N·m)		 Angular
(˚)		 Parallel
(mm)		 End-
play
(mm)
SOH-16S 16 20.9 4.7 7.7 2.2 3.8 M3 0.7 1 2 13,000 2.7×10-7 65 7.9 1.5 1 0.1
SOH-20S 20 22.8 5.1 8 2.4 3.6 M4 1.7 1.5 3 11,000 7.5×10-7 120 13 1.5 1.5 0.1
SOH-25S 25.5 28.7 6.9 10.2 3.1 4.9 M4 1.7 2.5 5 10,000 2.6×10-6 200 27.2 1.5 2 0.1
SOH-32S 32 38.3 8 14.4 3.8 5.5 M5 4 7 14 9,000 8.1×10-6 620 52 1.5 2.5 0.2
  • The Moment of Inertia and Mass values are based on products with max. Inner diameter.
  • Please modify rated/max. torque value with temperature correction factor when it’s higher than 30°C.
  • 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. (Set-screw type is usually less durable than other clamping method, thus please consider it has a complementary option e.g. keyway along with.)
SOH-SS
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)		 End-
play
(mm)
SOH-8SS 7.9 12.6 4.6 2.3 M3 0.7 0.5 1 20,000 1.3 x 10-8 10 1.5 1.5 0.7 0.05
SOH-16SS 16 23.9 7.7 3.8 M3 0.7 1 2 13,000 3.4×10-7 65 9.3 1.5 1 0.1
SOH-20SS 20 25.7 8 3.6 M4 1.7 1.5 3 11,000 8.9×10-7 120 15 1.5 1.5 0.1
SOH-25SS 25.5 32 10.2 4.9 M4 1.7 2.5 5 10,000 2.9×10-6 200 31 1.5 2 0.1
SOH-32SS 32 44.7 14.4 5.5 M5 4 7 14 9,000 9.5×10-6 620 63 1.5 2.5 0.2
  • The Moment of Inertia and Mass values are based on products with max. Inner diameter.
  • Please modify rated/max. torque value with temperature correction factor when it’s higher than 30°C.
  • 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. (Set-screw type is usually less durable than other clamping method, thus please consider it has a complementary option e.g. keyway along with.)
Standard Inner Diameter (ID)
Model Standard Inner Diameter (d1, d2) (mm)
1 1.5 2 2.5 3 4 4.5 5 6 6.35 8 9 9.525 10 11 12 14 15
SOH-6□□ ● ● ●
SOH-8□□ ● ● ● ●
SOH-10□□ ● ● ●
SOH-12□□ ● ● ● ●
SOH-16□□ ● ● ● ●
SOH-20□□ ● ● ● ● ●
SOH-25□□ ● ● ● ● ● ● ●
SOH-32□□ ● ● ● ● ● ● ● ● ● ●
Model Standard Inner Diameter (d1, d2) (mm)
8 9 9.525 10 11 12 14 15 16 18 19 20 22 24 25 25.4 28 30 32 35
SOH-43□□ ● ● ● ● ● ● ● ● ● ● ●
SOH-53□□ ● ● ● ● ● ● ● ● ● ● ● ●
SOH-57□□ ● ● ● ● ● ● ● ● ● ●
SOH-70 ● ● ● ● ● ● ● ● ● ● ● ● ●
  • 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)