(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories

    One Diaphragm Coupling, 12mm to 25mm

    12mm to 25mm diaphragm coupling rated torque 25N.m, diameter 56mm x length 45mm, high speed operation, low noise, accurately assembled using high-strength, corrosion-resistant fasteners and have a long service life time, designed for connecting servo motors and stepping motors.
    SKU: ATO-SC-GSM5645
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    12mm to 25mm shaft coupler size 56 x 56mm, single diaphragm internal clamping, low inertia, suitable for high-speed servo motors and stepping motors.


    Model ATO-SC-GSM5645
    Length 45mm
    Width 56mm
    Bore 12mm to 25mm
    Rated Torque 25 N.m
    Allow Eccentricity 0.1mm
    Allowable Deflection Angle 1∠°
    Allowable Axial Deviation ±0.36
    Allowable Speed 10000 RPM
    Static Torsional Stiffness 2000N.m/rad
    Moment of Inertia 1.2 x 10-4
    Weight 220g
    Certificate ISO9001, REACH, RoHS
    Warranty 12 Months

    Single Diaphragm Flexible Coupling Dimension (unit: mm)

    Diaphragm coupling dimension

    d1/d2 Inner Diameter Size Φd L LF S F M Tightening Torque
    8-9-9.525-10-11-12-12.7-14-15-16-17-18-19-20-22-24-25 56 45 19.75 5.5 6.4 M5 8 N.m


    Diaphragm coupling detail


    Shaft Diameter Keyway Standard Machining Dimensions Keyway Size
    d1/d2 b t (bXh)
    Width of groove Tolerance Depth of groove Tolerance
    φ6~φ7.9 2 ±0.0125 1 ±0.10 2x2
    φ8~φ10 3 1.4 3x3
    φ10.1~φ12 4 ±0.0150 1.8 4x4
    φ12.1~φ17 5 2.3 5x5
    φ17.1~φ22 6 2.8 6x6
    φ22.1~φ30 8 ±0.0180 3.3 ±0.20 8x7
    φ30.1~φ38 10 3.3 10x8
    φ38.1~φ44 12 ±0.0215 3.3 12x8
    φ44.1~φ50 14 3.8 14x9
    φ50.1~Ф58 16 4.3 16x10
    φ58.1~φ65 18 4.4 18x11

    Keyway Machining Standard Drawing

    Diaphragm coupling keyway dimension

    Tips: Diaphragm coupling advantages
    The diaphragm coupling has a simple structure and high reliability. It is suitable for high-speed, high-power, high-temperature and corrosive environments. It has great axial and angular compensation, good anti-misalignment, and has vibration absorption and vibration isolation functions.  The coupling has no noise, zero clearance, constant speed, no need for lubrication. The additional load acting on the connected equipment is small, and the diaphragm coupling is easy to install, use and maintain.

    Write your review for One Diaphragm Coupling, 12mm to 25mm
    • Only registered users can write reviews
    • Bad
    • Excellent
    Customers who bought this item also bought

    Digital Rotary Torque Sensor, 0.1/5/300/1000 Nm to 10000 Nm

    SKU: ATO-TQS-D03
    Digital rotary torque sensor with LCD display has the capacity range from 0.1 Nm/0.3 Nm/1 Nm/5 Nm/10 Nm/300 Nm/1000 Nm to 10000 Nm. LCD display can show torque, speed and power value at the same time. Dynamic torque sensor adopts two NSK shafts to ensure starting torque as low as 0.00001 Nm. Rotary torque transducer with 7 pin waterproof circular connector and 3m cable can measure both forward and reverse torque, and then output ±5V/0-10V/4-20mA/RS485 torque signal to PLC.