15z orange anglewinder plastic pinions

NSR 15 Tooth Pinions for Anglewinder: Precise Transmission from the First Turn

Pinions are one of the most discreet parts of the slot car and, at the same time, one of the most influential in the response of the transmission. The reference NSR7315 includes a pack of 4 units of plastic pinions with 15 teeth in orange, specifically designed for anglewinder configurations, where the motor is positioned at an angle to the rear axle.

Features and Function

• Number of teeth: 15z
• Diameter: 7.5 mm
• Material: nylon
• Motor compatibility: anglewinder
• Identifying colour: orange
• Pack contents: 4 units

Nylon offers smooth engagement with the crown gear, reduces transmission noise, and better absorbs alignment irregularities than metal pinions. For club setups or recreational use, it is a common choice due to its balance between durability and low replacement cost.

Compatibility and Installation

These pinions are designed for motors in anglewinder configuration. Before installing them, it is advisable to verify that the resulting gear ratio—combining this 15-tooth pinion with the chosen crown gear—suits the track profile and desired driving style. NSR offers a wide range of crown gears and pinions with different numbers of teeth to precisely adjust the final ratio.

The orange colour code facilitates quick identification on the workbench when working with multiple pinion sizes at once, avoiding confusion during assembly or tuning.

Usage Recommendations

Although nylon is durable, it is advisable to periodically check the condition of the pinion, especially if the car is used in competition. A pinion with visible wear on the flanks of the teeth can cause play in the transmission and loss of efficiency. Having a pack of 4 units allows for immediate spare parts on hand without the need to halt preparation.

To optimise lifespan, ensure that the clearance between pinion and crown gear is correct: neither too tight, which would generate heat and accelerated wear, nor excessively loose, which would introduce play and loss of power.

Frequently Asked Questions

Are these pinions suitable for sidewinder or inline setups?

No. The reference NSR7315 is specifically designed for anglewinder configurations, where the motor is positioned at an angle to the rear axle. For sidewinder or inline, NSR has specific references with the appropriate gear geometry.

Why are they made of nylon and not metal?

Nylon provides a quieter and smoother transmission, as well as acting as a sacrificial element that protects the crown gear (generally more expensive) in case of impact or overload. In many club categories, plastic pinions are preferred for this reason.

Does the orange colour have any technical significance?

Yes, it is a visual identification code. NSR uses different colours to differentiate pinion sizes at a glance, which greatly speeds up work on the preparation bench when handling multiple gear ratios.

How many pinions are in the pack?

The pack contains 4 units, allowing for ready spare parts for several cars or for immediate replacement during a tuning session.

How do I know if I need a 15-tooth pinion or one of another size?

The choice depends on the gear ratio you want to achieve with your crown gear. A pinion with more teeth raises the top speed, while one with fewer teeth improves acceleration. The optimal combination depends on the track layout and the motor used.

NSR plastic anglewinder pinion 15 teeth, 7.5 mm diameter, nylon, orange colour identifier, pack of 4 units. Reference NSR7315. Compatible with anglewinder motor configurations in 1/32 slot car racing. Ideal for club racing, home track setups and competition preparation. Available at Ministry of Hobby.