Shaft Coupling

Coupling is a core component that transmits power and motion
from the driving shaft to the driven part while absorbing misalignment
and any possible factors that could reduce efficiency of machines
(e.g. vibration, noise, electric current, etc.)

SHR Series

High Performance Rubber Coupling

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

Side-clamp

Dimensions / Performance
Model CAD Size (±0.3mm) Screw Permissible
Torque
(N·m)		 Max.
rpm
(min-1)		 Moment
of
Inertia
(kg·m2)		 Static
Torsional
Stiffness
(N·m/rad)		 Mass
(g)		 Permissible Misalignment Side-
clamp
Hub
Split
D L L1 L3 F Size Fastening
Torque
(N·m)		 Angular
(˚)		 Parallel
(mm)		 End-
play
(mm)
SHR-14C 13.8 22.4 6.7 4 2.1 M1.6 0.3 1 42,000 1.6×10-7 41 6 1.5 0.15 ±0.2 ○
SHR-18C 17.8 25.5 8 5 2.7 M2 0.6 1.9 33,000 4.9×10-7 84 11 1.5 0.15 ±0.2 ○
SHR-24C 23.8 31.2 9.6 6.3 3.1 M2.6 1.1 3.5 25,000 1.9×10-6 132 22 1.5 0.15 ±0.2 ○
SHR-27C 26.8 32 10 6.6 3.3 M2.6 1.1 4 22,000 3.4×10-6 180 31 1.5 0.15 ±0.2 ○
SHR-29C 28.8 35 11 7.2 3.7 M3 1.8 5.7 21,000 4.4×10-6 209 34 1.5 0.2 ±0.3 ○
SHR-33C 32.8 37 12 7.3 3.8 M3 1.8 7 18,000 8.3×10-6 370 51 1.5 0.2 ±0.3 ○
SHR-38C 37.8 47 15.5 8.9 4.6 M4 3.7 12 16,000 1.8×10-5 479 78 1.5 0.2 ±0.3 ○
SHR-43C 42.8 48 15.5 9 4.8 M4 3.7 16 14,000 3.2×10-5 610 115 1.5 0.2 ±0.3 ○
SHR-55C 54.8 59 19.5 10.8 5.5 M5 8.5 32 11,000 1.1×10-4 1,430 250 1.5 0.2 ±0.3 ○
SHR-68C 67.8 75 23.5 15 7.5 M6 13 65 9,000 4.2×10-4 7,500 470 1.5 0.2 ±0.3 ○
  • The Moment of Inertia and Mass values are based on products with max. Inner diameter.
  • Please modify Permissible Torque value with temperature correction factor when it’s higher than 30°C.
  • Permissible 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 4.5 5 6 6.35 7 8 10 11 12 13 14 15 16 17 18 19 20 22 24 25 28 30 32 35
SHR-14C ● ● ● ● ●
SHR-18C ● ● ● ● ● ● ●
SHR-24C ● ● ● ● ● ● ● ●
SHR-27C ● ● ● ● ● ● ● ● ● ●
SHR-29C ● ● ● ● ● ● ● ● ● ●
SHR-33C ● ● ● ● ● ● ● ●
SHR-38C ● ● ● ● ● ● ● ● ● ● ● ●
SHR-43C ● ● ● ● ● ● ● ● ● ● ● ●
SHR-55C ● ● ● ● ● ● ● ● ● ● ● ●
SHR-68C ● ● ● ● ● ● ● ● ● ●
  • 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)
  • Side-clamp Hub Split is available. (Optional)
Slip Torque
  • The below table shows the actual permissible torque values when the slip torque value is lower than the coupling’s permissible torque value.
  • If the slip torque value is lower than the coupling’s permissible torque value, please check and compare between the slip torque in the below table and the operating torque value of the connected motor. It is safer to size up the coupling or use a key/keyway when the slip torque value is lower than the motor’s operating torque.
  • The below slip torque values may be subject to change according to different testing conditions. (e.g. shaft tolerance, surface roughness, surface treatment or acceleration/deceleration of driving shafts). On the other hand, the values could be affected when a different kind of fastening screw is used (body material or surface treatment). Therefore, we recommend you test under the same conditions before mounting.
Model Permissible
Torque
(N·m)		 Slip Torque (N.m) by Inner Diameter (d1, d2)
3 4 4.5 5 6 6.35 7 8 10 11 12 14 15 16 17 18 19 20 22 24 25 28 30
SHR-14C 1 0.5 0.6 0.6 0.7 0.8
SHR-18C 1.9 1.5 1.5 1.6 1.9 2
SHR-24C 3.5 2.5 3 3.3 3.5
SHR-27C 4 1.5 2.5 2.8 3 3.2
SHR-29C 5.7 3.5 3.8 4 5
SHR-33C 7 7
SHR-38C 12 6.5 9 10 12
SHR-43C 16 14 16
SHR-55C 32
SHR-68C 65 54 57 65