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This Tamiya 22046 Ball Differential Set is designed for RC car enthusiasts looking to improve rear grip and stability, particularly on loose surfaces, by replacing the standard gear differential. Its key benefit is enhanced traction, offering a more consistent driving experience. A caveat to consider is its specific compatibility with certain Tamiya chassis, requiring additional parts for TT-02 models. The set includes all necessary components for assembly, providing a performance upgrade for your RC car.
| Model Part Number | 22046 |
|---|---|
| Brand | Tamiya |
A ball differential provides a limited-slip effect, offering more consistent and stable rear grip, especially on loose or slippery surfaces, compared to the often more aggressive or unpredictable action of a standard gear differential.
Yes, for Tamiya TT-02, TT-02D, and TT-02 Type-S chassis, you must also use Items 54623, 51700, and 51444 for compatibility.
It is recommended to re-grease the ball differential periodically, especially if you notice a decline in performance or if the differential feels dry or noisy. Typically, this is done during maintenance checks or after heavy use on dusty or wet conditions.
This specific set (Tamiya 22046) is designed and recommended for use on the rear of the car to improve traction. While it may be technically possible to adapt for front use on some chassis, it is not its intended application and could affect the car's handling balance.
The locking effect is adjusted by tightening or loosening the central differential screw. Tightening the screw increases the preload on the balls, making the differential act more like a locked diff (less slip). Loosening it reduces the preload, allowing for more slip.
The set includes: Differential Joint A & B, 39T Ball Differential Ring Gear, Bevel Pinion Gear, 2x Large Ball Diff Alloy Plates, 2x Thrust Plates, Differential Screw, Differential Nut, Differential Spring, 5x0.5mm Spacer, 2x 850 Ball Bearings, 2x 1280 Ball Bearings, 12x 3mm Steel Balls, 8x 1/16-inch Steel Balls, and Ball Differential Grease.
Disassemble the differential, clean all components, and reassemble with fresh ball differential grease. Ensure balls are properly seated and the diff is not overtightened.
Check the tightness of the differential screw. Adjust for slightly more or less tension based on surface conditions. Ensure all balls are present and correctly greased. Verify compatibility and correct installation of any additional required parts for TT-02 chassis.
Tighten the differential screw slightly. Be careful not to overtighten, as this can bind the gears and cause premature wear.
Ensure the differential plates and ball cups are clean and free of debris. Use a small amount of grease to help hold the balls in place during assembly. Work carefully and methodically.
Compatibility:
This ball differential set is primarily designed for the Tamiya XV-02 PRO chassis. For the following Tamiya chassis, it is *required* to use in conjunction with specific additional parts:
Required Additional Parts for TT-02 Chassis:
Setup:
The ball differential requires careful assembly and adjustment. Ensure all included balls are properly seated and greased with the provided ball differential grease. The tension of the differential can be adjusted by tightening or loosening the differential screw, which directly impacts the amount of slip allowed. Refer to the assembly manual for precise instructions on setting the initial preload and adjustment procedure.
Care:
Regular maintenance is key to the longevity and performance of the ball differential. Periodically inspect the balls and races for wear or damage. Re-grease the balls as needed, following the manufacturer's recommendations. If the differential becomes noisy or loses its smooth operation, it may require disassembly, cleaning, and reassembly with fresh grease. Ensure the diff joints remain well-greased, as indicated by the design of the ball-holding holes.
