New Avid RC 5.5mm Wide Pinions

Press Release From Avid RC:
www.avidrc.com

These Avid pinions are specifically designed for the drag racing scene using 4 pole motors with 5mm bore shafts. What makes our pinion unique is that we made the teeth 5.5mm wide instead of the tapered teeth that end up being around 4mm. This allows for more surface area resulting in fewer stripped gears, especially when you mate this pinion with our Kimbrough spur gear lineup. The pinions are available out of 7075-T6 aluminum and hard-anodized to reduce wear and friction, as well as steel.

In drag racing, the choice between aluminum and steel pinions often comes down to the specific needs and goals of the vehicle. The majority of racers opt for aluminum pinions due to their lighter weight, which results in quicker acceleration. However, in cases where the vehicle experiences difficulties maintaining traction or keeping its nose down during launches, a steel pinion may be a better option. Steel pinions help balance the vehicle by limiting torque at the start, thereby improving horsepower and top-end speed.

Kimbrough Products 48 Pitch spur gears are molded with black 4/6 Nylon plastic because black dissipates heat into the air better than any other color - and high temperatures are not good for thermo-setting plastics. This plastic is almost three times tougher and will withstand operating temperatures 75° to 125° higher than plastics used by other R/C car gear manufacturers.

Kimbrough spur gears are full width because a narrow or profiled plastic gear can deform under load, is weaker and less efficient which is why we recommend them with our 48p 5mm bore drag race pinions. This can cause drag in the gear train and waste horsepower. The wider a gear is, the more load it can handle. The only time gear engineers narrow gears is when there is a space limitation. Kimbrough Racing Products gears run quietly because they have the correct tooth shape and don't have to be narrowed. Choose from a variety of tooth count choices to allow you to fine-tune the torque and top speed of your model.

Features:

• Made in the USA from custom blend low-noise material: Most spur gears in the industry are made from material with glass fibers embedded inside to increase strength, but this also increases noise. Kimbrough spur gears are made out of a premium high-strength plastic material (3 times the impact strength of delrin) with zero glass. The result is a gear that is both strong and quiet.
• Precision-made wide gears which are perfect for drag racing.
• Gears are marked with the number of teeth on the outer ring.
• Available in 81, 84, 87, 90, 93, and 96 tooth configurations.