AW RT3 Offset Motor Mount -0.75mm

Fine Position Adjustment with the AW RT3 Offset Motor Mount -0.75 mm from Scaleauto

The SC-6535C motor mount from Scaleauto is designed for those seeking precise control over the drivetrain geometry in Anglewinder configuration. The offset value of -0.75 mm allows for a slight displacement of the motor position relative to the centreline of the axle, which directly impacts the meshing of the transmission and the overall behaviour of the car on track.

Function and Performance

In the preparation of competitive slot cars, the offset of the motor mount is one of the most valued parameters by tuners. A displacement of -0.75 mm can make a difference in the backlash between pinion and crown gear, affecting the smoothness of the transmission, energy efficiency, and acceleration response. This Extra-Hard version —identified in red— offers superior rigidity, reducing unwanted flexing of the mount under load, which is particularly relevant on technical tracks with many direction changes.

Compatibility

• Designed for Scaleauto cars with Anglewinder configuration and RT3 mount.
• Check the complete range of Scaleauto mounts to find the offset that best suits your combination of pinion, crown gear, and motor.

Installation and Preparation

The installation of this mount follows the standard procedure for the Scaleauto RT3 mount. It is advisable to check the meshing of the pinion with the crown gear after changing the mount: a correct backlash —neither too tight nor too loose— is essential to prolong the lifespan of the components and maintain an efficient transmission. Combine it with the appropriate pinion and crown gear for your gear ratio configuration.

Common Errors

• Mixing offsets without checking backlash: each mount change requires a new check of the meshing.
• Confusing hardness with offset: the Extra-Hard version refers to the rigidity of the material, not the displacement value. Ensure you select the correct offset for your configuration.
• Not verifying compatibility with the mount: this mount is intended for the Scaleauto RT3 mount. Confirm that your chassis is compatible before placing an order.

Frequently Asked Questions

What does the -0.75 mm offset mean in a motor mount?

The offset indicates the lateral displacement of the motor relative to the neutral position. A value of -0.75 mm slightly moves the pinion away from the crown gear in the negative direction, thus adjusting the backlash of the transmission according to the combination of pinion and crown gear you use.

What is the difference between the Extra-Hard version and other hardnesses?

The hardness of the mount determines its rigidity under load. The Extra-Hard (red) version is the most rigid in the range, minimising flexing of the mount during operation and providing a more consistent transmission, especially on demanding circuits.

Is it compatible with cars that are not Scaleauto?

This mount is specifically designed for the Scaleauto RT3 mount. Compatibility with other brands or mounts is not documented by the manufacturer, so we cannot guarantee it.

How do I know what offset I need for my car?

It depends on the combination of pinion, crown gear, and motor you are using. The most common approach is to start with the neutral offset and try positive or negative values until achieving the ideal backlash. More experienced tuners often have several offset options to adjust on the fly.

Does the mount include screws or any additional accessories?

The information provided by the manufacturer does not specify any additional content beyond the mount itself. Check the official Scaleauto datasheet or contact us if you need confirmation about the packaging contents.

The Scaleauto SC-6535C motor mount is an Anglewinder RT3 bracket with a -0.75 mm offset in Extra-Hard version, ideal for fine-tuning pinion-to-crown backlash on Scaleauto slot cars. A precision component for club racers and competitive slot car builders looking to optimize drivetrain efficiency and consistency on track.