Step Flex STF

Step Flex STF

Newly developed multi-layer rubber element achieves high attenuation and low recoil force. Couplings with high damping performance. For servo and stepper motors.
Integrated structure with no backlash that adopts HNBR for the power transmitting element. Damps vibration more quickly than a flexible coupling using metal for the elastic part.
This makes it possible to inhibit resonance, a phenomenon which tends to occur with stepper motors, etc. Helps avoid resonance over a wide range of operating speeds. Provides stable high speed control.
Furthermore, by using a layered rubber element sandwiched between HNBR with different levels of hardness, the shaft reaction force due to misalignment is reduced. The burden on the counter shaft and bearing can be reduced drastically.

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Part Number

Configured Part Number is shown.

 
Part Number
STF-013SA1-3B-3B
STF-013SA1-3B-4B
STF-013SA1-3B-5B
STF-013SA1-4B-4B
STF-013SA1-4B-5B
STF-013SA1-5B-5B
STF-016SA1-3B-3B
STF-016SA1-3B-4B
STF-016SA1-3B-5B
STF-016SA1-3B-6B
STF-016SA1-4B-4B
STF-016SA1-4B-5B
STF-016SA1-4B-6B
STF-016SA1-5B-5B
STF-016SA1-5B-6B
STF-016SA1-6B-6B
STF-019SA1-3B-3B
STF-019SA1-3B-4B
STF-019SA1-3B-5B
STF-019SA1-3B-6B
STF-019SA1-3B-6.35B
STF-019SA1-3B-7B
STF-019SA1-3B-8B
STF-019SA1-4B-4B
STF-019SA1-4B-5B
STF-019SA1-4B-6B
STF-019SA1-4B-6.35B
STF-019SA1-4B-7B
STF-019SA1-4B-8B
STF-019SA1-5B-5B
STF-019SA1-5B-6B
STF-019SA1-5B-6.35B
STF-019SA1-5B-7B
STF-019SA1-5B-8B
STF-019SA1-6B-6B
STF-019SA1-6B-6.35B
STF-019SA1-6B-7B
STF-019SA1-6B-8B
STF-019SA1-6.35B-6.35B
STF-019SA1-6.35B-7B
STF-019SA1-6.35B-8B
STF-019SA1-7B-7B
STF-019SA1-7B-8B
STF-019SA1-8B-8B
STF-024SA1-5B-5B
STF-024SA1-5B-6B
STF-024SA1-5B-6.35B
STF-024SA1-5B-7B
STF-024SA1-5B-8B
STF-024SA1-5B-9B
STF-024SA1-5B-9.525B
STF-024SA1-5B-10B
STF-024SA1-6B-6B
STF-024SA1-6B-6.35B
STF-024SA1-6B-7B
STF-024SA1-6B-8B
STF-024SA1-6B-9B
STF-024SA1-6B-9.525B
STF-024SA1-6B-10B
STF-024SA1-6.35B-6.35B
Part NumberVolume DiscountDays to ShipRoHSAllowable Torque Range
(N•m)
Hole diameter d1
(Ø)
Hole diameter d2
(Ø)
O.D.
(Ø)
Full Length
(mm)
Allowable Torque
(N•m)
Allowable Lateral Misalignment
(mm)
Operating Temperature Range
(°C)
Allowable Axial Clearance (±)
(mm)
Moment of Inertia
(kg・m2)
Quote 100.05~1.0033131810.15-20~800.20.11×10-6
Quote 100.05~1.0034131810.15-20~800.20.11×10-6
Quote 100.05~1.0035131810.15-20~800.20.11×10-6
Quote 100.05~1.0044131810.15-20~800.20.11×10-6
Quote 100.05~1.0045131810.15-20~800.20.11×10-6
Quote 100.05~1.0055131810.15-20~800.20.11×10-6
Quote 101.01~3.0033162220.15-20~800.20.31×10-6
Quote 101.01~3.0034162220.15-20~800.20.31×10-6
Quote 101.01~3.0035162220.15-20~800.20.31×10-6
Quote 101.01~3.0036162220.15-20~800.20.31×10-6
Quote 101.01~3.0044162220.15-20~800.20.31×10-6
Quote 101.01~3.0045162220.15-20~800.20.31×10-6
Quote 101.01~3.0046162220.15-20~800.20.31×10-6
Quote 101.01~3.0055162220.15-20~800.20.31×10-6
Quote 101.01~3.0056162220.15-20~800.20.31×10-6
Quote 101.01~3.0066162220.15-20~800.20.31×10-6
Quote 101.01~3.0033192530.15-20~800.20.70×10-6
Quote 101.01~3.0034192530.15-20~800.20.70×10-6
Quote 101.01~3.0035192530.15-20~800.20.70×10-6
Quote 101.01~3.0036192530.15-20~800.20.70×10-6
Quote 101.01~3.0036.35192530.15-20~800.20.70×10-6
Quote 101.01~3.0037192530.15-20~800.20.70×10-6
Quote 101.01~3.0038192530.15-20~800.20.70×10-6
Quote 101.01~3.0044192530.15-20~800.20.70×10-6
Quote 101.01~3.0045192530.15-20~800.20.70×10-6
Quote 101.01~3.0046192530.15-20~800.20.70×10-6
Quote 101.01~3.0046.35192530.15-20~800.20.70×10-6
Quote 101.01~3.0047192530.15-20~800.20.70×10-6
Quote 101.01~3.0048192530.15-20~800.20.70×10-6
Quote 101.01~3.0055192530.15-20~800.20.70×10-6
Quote 101.01~3.0056192530.15-20~800.20.70×10-6
Quote 101.01~3.0056.35192530.15-20~800.20.70×10-6
Quote 101.01~3.0057192530.15-20~800.20.70×10-6
14 Day(s) or more 101.01~3.0058192530.15-20~800.20.70×10-6
Quote 101.01~3.0066192530.15-20~800.20.70×10-6
Quote 101.01~3.0066.35192530.15-20~800.20.70×10-6
Quote 101.01~3.0067192530.15-20~800.20.70×10-6
14 Day(s) or more 101.01~3.0068192530.15-20~800.20.70×10-6
Quote 101.01~3.006.356.35192530.15-20~800.20.70×10-6
Quote 101.01~3.006.357192530.15-20~800.20.70×10-6
Quote 101.01~3.006.358192530.15-20~800.20.70×10-6
Quote 101.01~3.0077192530.15-20~800.20.70×10-6
Quote 101.01~3.0078192530.15-20~800.20.70×10-6
Quote 101.01~3.0088192530.15-20~800.20.70×10-6
Quote 103.01~5.0055242750.15-20~800.21.89×10-6
Quote 103.01~5.0056242750.15-20~800.21.89×10-6
Quote 103.01~5.0056.35242750.15-20~800.21.89×10-6
Quote 103.01~5.0057242750.15-20~800.21.89×10-6
Quote 103.01~5.0058242750.15-20~800.21.89×10-6
Quote 103.01~5.0059242750.15-20~800.21.89×10-6
Quote 103.01~5.0059.525242750.15-20~800.21.89×10-6
Quote 103.01~5.00510242750.15-20~800.21.89×10-6
Quote 103.01~5.0066242750.15-20~800.21.89×10-6
14 Day(s) or more 103.01~5.0066.35242750.15-20~800.21.89×10-6
Quote 103.01~5.0067242750.15-20~800.21.89×10-6
Quote 103.01~5.0068242750.15-20~800.21.89×10-6
Quote 103.01~5.0069242750.15-20~800.21.89×10-6
Quote 103.01~5.0069.525242750.15-20~800.21.89×10-6
Quote 103.01~5.00610242750.15-20~800.21.89×10-6
Quote 103.01~5.006.356.35242750.15-20~800.21.89×10-6

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Basic Information

Type Vibration Damping Rubber Type Allowable Misalignment Angular Misalignment / Eccentricity / Axial Misalignment Application Servo Motor / Stepping Motor
Max. Rotational Speed Range(r/min) 4001~10000 Features High Torque / Backlash 0 / Vibration Absorption Body Material Aluminum
Product Category Coupling body Maximum Rotation Speed(r/min) 10000 Allowable Lateral Misalignment Range(mm) 0.02~0.2
Allowable Angular Misalignment(deg) 1.5 Buffer Material Nitrile Rubber

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