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Coupling Servo Motor

 

 

 

 

 

Dimensions / Performanc
Set-screw
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)
SRB-8 7.9 14 3.5 1.7 M2 0.3 0.1 0.2 50,000 1.2 x 10-8 16 1.5 2.5 0.1 ±0.2
SRB-12 12.7 18 4.5 2.2 M2.5 0.5 0.2 0.4 40,000 1.1×10-7 40 4.4 2.5 0.1 ±0.3
SRB-16 16 18.5 4.7 2.3 M3 0.7 0.4 0.8 30,000 2.8×10-7 75 7.2 2.5 0.15 ±0.3
SRB-19 19.1 22 6 2.9 M3 0.7 0.6 1.2 24,000 6.4×10-7 150 12 2.5 0.15 ±0.3
SRB-22 22.2 25 6.5 3.2 M4 1.7 1 2 20,000 1.4×10-6 200 17.4 2.5 0.15 ±0.4
SRB-26 26.2 30 7.7 3.4 M4 1.7 2 4 18,000 3.1×10-6 340 29.2 2.5 0.2 ±0.4
SRB-32 31.8 39 9.4 4.7 M5 4 3.8 7.6 18,000 9.4×10-6 450 56.8 2.5 0.2 ±0.4
SRB-39 39 56 16 5.9 M5 4 7 14 12,000 2.8×10-5 640 124 2.5 0.25 ±0.4
SRB-49 49 70 19.8 9.4 M6 7 15 30 10,000 1.0×10-4 1,500 280 2.5 0.25 ±0.5
SRB-60 60 88 19 9 M8 15 30 60 8,500 2.7×10-4 2,500 500 2.5 0.3 ±0.5
  • The Moment of Inertia and Mass values are based on products with max. Inner diameter.
  • The number of screw for SRB-8 is 1pc and shaft-insertion depth is up to L1. (No relief structure).
  • 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.)
Side-clamp
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)
SRB-12C 12.7 19 5 2.5 M2 0.5 0.2 0.4 35,000 1.1×10-7 40 4.4 2.5 0.1 ±0.3
SRB-16C 16 21.5 6.1 3 M2.6 1 0.4 0.8 27,000 3.1×10-7 75 8.2 2.5 0.15 ±0.3
SRB-19C 19.1 23 6.2 3.1 M2.6 1 0.6 1.2 20,000 6.4×10-7 150 12 2.5 0.15 ±0.3
SRB-22C 22.2 26.5 7.2 3.6 M3 1.7 1 2 18,000 1.4×10-6 200 17.9 2.5 0.15 ±0.4
SRB-26C 26.2 31.5 7.5 3.7 M3 1.7 2 4 17,000 3.2×10-6 340 29.9 2.5 0.2 ±0.4
SRBA-32C 31.8 39 9.4 4.7 M4 3.5 3.8 7.6 14,000 8.6×10-6 450 54.9 2.5 0.2 ±0.4
SRBB-32C 31.8 44 9.4 4.7 M4 3.5 3.8 7.6 14,000 1.0×10-5 450 62.3 2.5 0.2 ±0.4
SRBA-39C 39 43 10.7 5.3 M5 8 7 14 10,000 2.1×10-5 640 87.8 2.5 0.25 ±0.4
SRBB-39C 39 56 12 5.5 M5 8 7 14 10,000 2.8×10-5 640 117 2.5 0.25 ±0.4
SRBA-49C 49 63.5 15.1 7.5 M6 13 15 30 10,000 8.4×10-5 1,500 236 2.5 0.25 ±0.5
SRBB-49C 49 70 14.5 7.2 M6 13 15 30 8,400 1.0×10-4 1,500 258 2.5 0.25 ±0.5
SRBA-60C 60 76.2 19 9.4 M8 30 30 60 7,000 2.2×10-4 2,500 407 2.5 0.25 ±0.5
SRBB-60C 60 88 19 9.4 M8 30 30 60 7,000 2.6×10-4 2,500 483 2.5 0.25 ±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)
2 3 4 5 6 6.35 8 9.525 10 11 12 14 15 16 18 19 20 22 24 25
SRB-8□                                    
SRB-12□                                  
SRB-16□                                
SRB-19□                              
SRB-22□                            
SRB-26□                        
SRB□-32□                          
SRB□-39□                        
SRB□-49□                          
SRB□-60□                        
  • 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)
Slip Torque
  • The below table shows the actual permissible torque values when the slip torque value is lower than the coupling’s max. torque value.
  • If the slip torque value is lower than the coupling’s max. 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 Max.
Torque
(N·m)
Slip Torque (N·m) by Inner Diameter (d1, d2)
5 6 6.35 8 9.525 10 11 12 14 15 16 18 19
SRB-26C 4 2.2 2.8 2.8 3.5                  
SRB□-32C 7.6       5.6 7                
SRB□-39C 14           12              
SRB□-49C 30               21 27        
SRB□-60C 60                   34 40 46 54

 

 



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