Double pass brass universal adapter coupling 4mm x 5mm

Double Pass Brass Universal Adapter Coupling 4mm × 5mm

The Double Pass brass adapter coupling 4mm × 5mm supports smooth torque delivery in compact mechanisms where accurate alignment is essential. Designed for refined motion control, it works effectively in both motor coupling arrangements and coupling shaft motor transitions, helping the coupling maintain reliable rotation in robotic builds and precision prototypes. With its rigid brass construction, this design ensures durability across applications requiring consistent alignment and motion transfer.

Insert each shaft into the appropriate bore and tighten the supplied M3 gripping screws. This secure interface minimizes slippage under rotational load, allowing the coupling to provide dependable performance in brushless motor setups, compact drive assemblies, and experiments where stable motion is required.

Technical Details

• Material: Brass
• Bore Sizes: 4mm and 5mm
• Body Length: 20 mm
• Outer Diameter: 9 mm
• Locking Hardware: M3 gripping screws (4 pcs)
• Coupling Format: Rigid cylindrical sleeve
• Weight: 8 g
• Finish Tone: Gold brass machining

Features

• Connects 4mm motor outputs to 5mm driven mechanisms
• Stable torsional flow ensures smooth rotational behavior
• Machined brass construction enhances long-term reliability
• Four-point screw alignment improves gripping strength
• Compact layout suitable for tight mechanical spaces

Applications

• Robotic diameter conversion stages
• RC propulsion interface adjustments
• Prototype pulley and gear alignment
• Micro torque transfer modules
• Fine rotational adaptation in instrumentation setups

Physical Attributes

• Component Length: 20 mm
• Outer Diameter: 9 mm
• Bore Dimensions: 4 mm and 5 mm
• Screw Thread Type: M3
• Included Screws: 4 pcs
• Approximate Weight: 8 g
• Shape Type: Solid cylindrical sleeve
• Surface Finish: Smooth precision-machined brass

Package Includes

• 1 × Double Pass Brass Coupling (4mm × 5mm)
• 4 × M3 Gripping Screws