Unique-Bargains
Unique-Bargains 2-3mm Rotatable Universal Steering Coupler Accessory
Rotatable 2 mm to 3 mm bore steel coupler with M3 screws for RC steering shafts
- TypeLinkages
- Transmits torque and maintains alignment with 2mm to 3mm bore range
- Cost-effective coupling design suited for RC car and truck linkages
- Nickel-coated 45# steel resists corrosion in harsh environments
- Compact 23mm by 9mm footprint fits tight steering assemblies
- Includes M3 screws for immediate installation
Rotatable Steering Coupler for RC Models
This 23 mm by 9 mm universal joint connects a 2 mm shaft to a 3 mm shaft on hobby-grade cars, trucks and drones. It transmits torque while allowing angular misalignment between motor and steering components. The nickel-coated 45# steel body resists corrosion during outdoor use. The package includes one coupler and two M3 set screws for immediate fitting.
Simple Press-Fit Installation With M3 Locking
Slide each shaft into the 0.08 inch to 0.12 inch bore range and tighten the supplied M3 screws against the flats or keyways. The compact 0.91 inch length fits tight chassis tunnels without binding. A common issue is over-tightening the screws, which can strip the soft steel threads or distort the bore. Apply only enough torque to prevent slip under steering loads.
Verify Shaft Diameters
Measure both the motor output shaft and the steering input shaft; they must fall within the 2 mm to 3 mm range for a secure grip. Confirm that your model uses M3 set-screw holes or can be drilled and tapped to accept them. Check that 23 mm overall length clears adjacent bulkheads, suspension arms or body posts before ordering.
Highlights
- Transmits torque and maintains alignment with 2mm to 3mm bore range
- Cost-effective coupling design suited for RC car and truck linkages
- Nickel-coated 45# steel resists corrosion in harsh environments
- Compact 23mm by 9mm footprint fits tight steering assemblies
- Includes M3 screws for immediate installation
Specifications
| Brand | Unique Bargains |
|---|---|
| Type | Linkages |
| Model | RC Car & Truck |
Questions about this item
How do I confirm the steering coupler is transmitting torque correctly after installation?
Rotate the motor shaft by hand and verify the output shaft turns without binding; the nickel-coated 45# steel joint should move smoothly through its full range.
What items are included and what must I source separately for the 2 mm to 3 mm bore universal joint?
The package contains one 23 mm x 9 mm universal joint and two M3 screws; you will need a compatible motor shaft and steering shaft that fit the 2 mm to 3 mm bore.
Which bore size should I select for my RC car steering shaft?
Choose the 2 mm bore if your shaft measures 2 mm, or the 3 mm bore for a 3 mm shaft; the coupler accommodates both diameters within the 2 mm to 3 mm range.
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