Tamiya 70272 Inspectable Differential Assembly for Educational Sets  [70272]

Tamiya 70272 - Differential Gear Unit
Price:
£0.00
Brand:
Tamiya
Model:
70272
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Inspectable Tamiya 70272 differential gearbox for learning builds

This differential gear unit is intended as a spare part for Tamiya educational construction projects. The bevel-gear arrangement permits differential rotation between driven shafts so inner and outer shafts can spin at different speeds during turns. The clear case offers an unobstructed view of the bevel gears, making it useful for teaching gear geometry and verifying mesh during assembly.

The internal gearset uses low-friction profiles and power is carried through three metal 3 mm hex shafts. The unit is made to integrate with separately sold Universal Plates and Universal Arms from the Tamiya Educational Construction Series, delivering a straightforward compact differential where required.

Service-oriented features include removable screws for access and a pre-applied lubricant to lower initial wear. It is aimed at builders, instructors, and collectors who value a verifiable, visible differential for classroom demonstrations, display pieces, or parts replacement in compatible assemblies.

Drive type: bevel differential unit

Gear ratio: 3.17:1

Case material: transparent plastic

Shafts: three 3 mm hex shafts, 50 mm length

Included components: low-friction gears, 3 x hex shafts, screws, grease

The 70272 differential supplies an inspectable, serviceable option for educational assemblies and replacement use, combining a clear case with metal hex shafts for reliable verification of gear action.

The clear casing allows students to watch gear engagement and learn about bevel gear geometry, mesh inspection, and differential behaviour without disassembly, enhancing practical demonstrations.
Yes, it is designed for educational use, but routine checks of gear mesh and occasional re-lubrication are advised to maintain reliable operation under frequent handling.
The transparent case enables visual inspection of wear patterns and foreign debris on the bevel gears, reducing the need for full disassembly when performing routine checks.
Describe the 3.17:1 ratio as a fixed reduction that lowers output speed while increasing torque, showing predictable mechanical advantage for lessons on gear reduction and power transfer.

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