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RB NEMA 23 (57mm) Coupling 6.35x8mm
₹400.00 Original price was: ₹400.00.₹350.00Current price is: ₹350.00. inc. GST
- Material: Aluminium.
- Bore Diameter d1: 6.35 mm.
- Bore Diameter d2: 8 mm.
- Length: 25MM.
- Known as Beam coupling, helical coupling, Flexible coupling
- Quality assured branded couplings.
- It provides a good hold of the Motor Shaft.
- Ensure the safe operation of your robot.
- Weight: 128 gm.
This RB NEMA 23 (57mm) 6.35x8mm coupling is compatible with almost all NEMA17 stepper motors. These couplings also known as Beam coupling, helical coupling, Flexible coupling. The RB NEMA 23 (57mm) 6.35x8mm coupling explicitly designed with an Internal Bore Diameter of 6.35x8mm for the Motors having a shaft diameter of 6.35mm. These couplings manufactured with high-quality Aluminum which makes them more sturdy and durable. Also, the use of aluminum material makes them much heavy and increases the strength of coupling. This Aluminium Helical Shaft coupling widely used in applications such as 3D Printers, CNC machines, and other DIY projects. Used to couple Stepper motors and 8mm rods / threaded rods/precision trapezoidal rods. The coupler takes care of small misalignments, deviations, and twists in the system.

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- Max watt:300W
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- Shaft: 3.17mm in Diameter
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NEMA 23 18.9 kg-cm
- Step Angle : 1.8 °
- Holding Torque : 18.9 kg-cm
- Operating Voltage : 3.2 Volts
- Supply Current (A)Â : 2.8 A/Phase
- No. of Leads : 4
- Inductance: 3.6 mH/Phase
- Resistance : 1.13 O/Phase
- Rotor Inertia : 480 gm-cm2
- Inductance Accuracy : ±20%
- Resistance Accuracy : ±10%
- Shaft Diameter (mm)Â : 6.35
- Shaft Length (mm)Â : 20.6
- Cable Length: 30 CM
- Comparably more powerful than NEMA17 motors.
- Input pulse decides the rotation angle of the motor.
- High accuracy of around 3 to 5% a step.
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RB NEMA 17 (42mm) Coupling 5×6.35mm
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- of Leads - 6
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- Step Angle - 1.8°
- Step Angle Accuracy - ±5% (full step, no load)
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- Frame Size (mm) - 57x57
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- Material: Aluminum alloy hubs and elastomeric polyurethane spider.
- Product Type: Clamp-style jaw coupling without keyway.
- Dimensions: bore size: 8mm x 8mm.
- Number of Screws: 2 each.
- Angular Misalignment: +/-1°.
- Parallel Misalignment: +0.20mm/-0.20mm .
- Maximum Rotational Speed: 6500RPM.
- Suitable for Nema 23 Stepper Motor or for any motor/rod having an 8mm diameter
- Widely used in motors, stepper motors, encoders, and servo machines.

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