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    Curved Jaw Coupling, 65 x 90mm

    5 out of 5 based on 1 reviews | Write a review
    Curved jaw coupling bushings made of 304 stainless steel, with good corrosion resistance, 65mm diameter, 90mm length, bore 14mm to 40mm, large carrying capacity, long service life, safe and reliable.
    SKU: ATO-SC-GFCG-6590
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    Delivery date: 6-12 days

    Plum blossom coupling size D 2.5 inch x L 3.5 inch, bore 0.5 to 1.5 inch, clamping method, widely used in CNC lathes, machining centers, engraving machines and water pumps, etc.


    • Model: ATO-SC-GFCG-6590
    • Rated Torque: 164 Nm
    • Eccentricity Allowed: 0.02mm
    • Bore: 14 to 40mm
    • Allowable Declination: 1∠°
    • Allowable Axial Deviation: ±0.60mm
    • Allowable Speed: 6000rpm
    • Static Torsional Stiffness: 1500 Nm/rad
    • Moment of Inertia: 3.8 x 10-3 Nm
    • Bushing Material: 304 Stainless steel
    • Rubber Block Material: Polyurethane imported from Germany
    • Surface Treatment: Polished
    • Weight: 1329g
    • Certificate: ISO9001, REACH, RoHS
    • Warranty: 12 Months

    65 x 90mm Flexible Jaw Coupling Dimension (unit: mm)

    Flexible jaw coupling dimension

    • d1/d2 Inner Diameter Size: 14-15-16-17-18-19-20-22-24-25-28-30-32-35-38-40
    • ΦD: 65
    • L: 90
    • LF: 52.9
    • LP: 16.7
    • F: 11.7
    • M: M8
    • Tightening Torque: 28 Nm

    Tips: Plum coupling installation skills

    1. Before installation, check whether the two shafts of the prime mover and the working machine are concentric, whether there is wrapping paper and bumps on the surfaces of the two shafts, whether there are debris in the inner holes of the two half couplings of the plum coupling, and whether the edges of the inner holes are If there are bumps, the shaft and half coupling should be cleaned up, and the bumps should be treated with a fine file. Then check whether the diameter and length of the inner hole of the two half couplings are consistent with the diameter and length of the shaft extension of the prime mover and the working machine. In general selection, it is better to let the length of the half coupling at the end of the prime mover and the working machine be less than the length of its shaft extension by 10-30mm.
    2. In order to facilitate installation, it is best to preheat the two half couplings in a 120--150 incubator or oil tank, so that the size of the inner hole is enlarged and it is easy to install. After installation, ensure that the shaft head cannot protrude from the end face of the half coupling, preferably flush. Detect the distance between the two halves of the coupling: measure the readings of 3--4 points along the inner sides of the flanges of the half coupling and take the average value, and the sum of the measured dimensions of the extended section and the two diaphragm groups, the two The error is controlled within the range of 0-0.4mm.
    3. Alignment: use a dial indicator to detect the runout of the flange face and outer circle of the two halves of the coupling. When the outer circle of the flange is less than 250mm, the runout value should not be greater than 0.05mm; when the outer circle of the flange is greater than 250mm , the runout value should not be greater than 0.08.
    4. Install the bolts: Insert the bolts from the outside of the small hole of the flange, and pass through the outside of the large hole of the other flange. Put on the buffer sleeve, elastic washer, twist the nut, and tighten the nut with a wrench. If it is uncomfortable to install or dismantle and replace, without damaging the shaft and half-coupling, it is better to rotate freely after installation.
    5. Instructions for the operator: Before starting the equipment, check whether the nut of the torx coupling is loose or fall off. If necessary, tighten the nut with a wrench in time.
    Existing reviews of Curved Jaw Coupling, 65 x 90mm
    Outstanding claw coupling
    The claw coupling is an excellent product and has exceeded my expectations. It was very easy to install and provided a secure and stable connection between my motor and the machine. The claw coupling proved to be very low maintenance and did not require any repairs or replacement products as I installed it for the first time.
    From: Navin | Date: 20/02/2023
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