XB 30mm Outer Diameter x Length 40mm x Inner Diameter Both Side 5mm Flexible Aluminum Alloy Spider Jaw Coupling
Made from high-quality aluminum alloy, this flexible spider jaw coupling helps absorb vibration, reduce shock, and compensate for slight shaft misalignment. The 30 × 40 mm series is available in a 5mm to 16mm bore range, but this particular variant comes with d1 = 5mm and d2 = 5mm. It is a practical choice for compact transmission systems requiring smooth rotation, dependable performance, and high-speed operation.
XB 30mm Outer Diameter x Length 40mm x Inner Diameter Both Side 5mm Flexible Aluminum Alloy Spider Jaw Coupling
Available:In Stock
- Product SKU: LGSTM067
₹ 599
₹ 899
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Specification
Description
XB Flexible Aluminum Alloy Spider Jaw Coupling 30mm OD x 40mm Length x 5mm-5mm Bore
The XB Flexible Aluminum Alloy Spider Jaw Coupling is a compact and durable shaft coupling designed for smooth and reliable torque transmission between two shafts. With a 30mm outer diameter, 40mm total length, and 5mm bore on both sides, this coupling is suitable for motors, encoders, CNC systems, automation equipment, and robotics applications. Its set screw type design provides secure shaft locking and stable mechanical performance during operation.Made from high-quality aluminum alloy, this flexible spider jaw coupling helps absorb vibration, reduce shock, and compensate for slight shaft misalignment. The 30 × 40 mm series is available in a 5mm to 16mm bore range, but this particular variant comes with d1 = 5mm and d2 = 5mm. It is a practical choice for compact transmission systems requiring smooth rotation, dependable performance, and high-speed operation.
Features
- Flexible spider jaw design for smooth torque transmission
- Made from durable aluminum alloy
- 30mm outer diameter and 40mm total length
- 5mm bore on both sides for shaft connection
- Set screw type with M4 locking screw
- Helps absorb vibration and reduce mechanical shock
- Compensates for slight radial, angular, and axial misalignment
- Suitable for high-speed systems up to 12000 rpm
- Compact and durable design for precision applications
- Product series available in 5mm to 16mm bore options
- In this variant, d1 = 5mm and d2 = 5mm
Drawing

Technical Details
- Series: XB
- Item Type: Flexible Spider Jaw Coupling
- Material: Aluminum Alloy
- Model Size: 30 × 40 mm
- Outer Diameter D: 30mm
- Total Length L: 40mm
- d1 Bore: 5mm
- d2 Bore: 5mm
- Bore Range (d1~d2): 5~16 mm
- L1: 14 mm
- L2: 10 mm
- L3: 6.8 mm
- S: 1.5 mm
- Rated Torque: 6.5 Nm
- Maximum Torque: 13 Nm
- Maximum Speed: 12000 rpm
- Moment of Inertia: 6.0×10-6 kg·m²
- Static Torsional Stiffness: 72 Nm/rad
- Allowable Radial Deviation: 0.02 mm
- Allowable Angular Deviation: 1.0°
- Allowable Axial Deviation: +0.60 / 0 mm
- Locking Screw Specification: M4
- Locking Screw Torque: 3.5 Nm
- Weight: 62g
- Mounting Type: Set Screw Type
Applications
- Stepper motors and servo drive systems
- Encoders and miniature transmission systems
- CNC machines
- 3D printers
- Robotics projects
- Automation systems
- Precision shaft coupling applications
- DIY motion control and mechanical projects
Physical Attributes
- Outer Diameter: 30mm
- Total Length: 40mm
- d1 Bore: 5mm
- d2 Bore: 5mm
- Model Size: 30 × 40 mm
- Locking Screw Specification: M4
- Material: Aluminum Alloy
- Weight: 62g
Package Includes
- 1 × XB Flexible Aluminum Alloy Spider Jaw Coupling 30mm OD x 40mm Length x 5mm-5mm Bore