NSR 6529 29T Extra Light Aluminium Anglewinder Gear 16.8mm for 3/32" Axles

NSR 6529 Extra Light Aluminium Anglewinder Gear is a precision-machined 29-tooth aluminium crown gear designed specifically for NSR anglewinder slot car applications. With a 16.8mm diameter, 3/32" axle specification and 15° anglewinder geometry, it is engineered to provide accurate, low-friction gear meshing in serious 1/32 scale race builds.

Machined from lightweight aluminium, the NSR 6529 combines low rotating mass with the rigidity and dimensional accuracy required for consistent competition use. It is an ideal choice when tuning the final-drive ratio of an NSR anglewinder car or replacing a worn crown gear while retaining NSR's established 16.8mm anglewinder system.

29-Tooth NSR Anglewinder Gear

The 6529 is part of NSR's range of 3/32" extra-light aluminium anglewinder gears. The 29-tooth version is identified by its green finish and is designed for NSR anglewinder applications using the manufacturer's 2.37mm axle system.

Its 15° anglewinder tooth geometry is matched to the corresponding NSR anglewinder pinions, allowing the gear pair to run with the correct mesh when the motor is mounted at an angle to the rear axle.

Lightweight Aluminium Construction

Reducing rotating mass is an important consideration in competition slot car drivetrains. The extra-light aluminium construction of the NSR 6529 reduces the mass that the motor must accelerate while maintaining a rigid gear structure for accurate tooth engagement.

For racers who are already using an NSR anglewinder drivetrain, staying within the NSR gear system also provides the advantage of using components designed around the same dimensional standards.

Key Features

• NSR 6529
• 29-tooth anglewinder crown gear
• Extra-light aluminium construction
• 16.8mm diameter
• 15° NSR anglewinder tooth geometry
• Designed for 3/32" class NSR anglewinder applications
• Green finish
• Secured to the axle with an included set screw
• Recommended pinion diameter: 7.5mm
• Recommended NSR pinion series: 71XX
• Suitable for competition and performance-oriented builds

Specifications & Components

Component	Specification	Product Code	Quantity
Anglewinder crown gear	29 teeth, 16.8mm diameter, extra-light aluminium, 15°	6529	1
Axle fixing screw	NSR 4-40 set screw	6529	1

Technical Specifications

Specification	Details
Brand	NSR
Product code	6529
Product type	Extra-light aluminium anglewinder crown gear
Gear type	Anglewinder
Teeth	29T
Gear diameter	16.8mm
Tooth angle	15°
Material	Aluminium
Axle specification	3/32" class / NSR 2.37mm axle
Recommended pinion diameter	7.5mm
Recommended pinion series	NSR 71XX
Colour	Green
Quantity	1

Gear Ratio & Pinion Selection

With a 29-tooth crown gear, the final-drive ratio is determined by the number of teeth on the mating pinion. NSR specifies its 71XX 7.5mm-diameter pinion range for the 16.8mm anglewinder gear family.

For example, pairing the 6529 with a 13-tooth pinion produces a 13:29 gearing combination, while changing the pinion tooth count allows the final-drive ratio to be tailored to the motor, track and class regulations.

When replacing an NSR gear, using a compatible NSR pinion is recommended to achieve the intended tooth profile and mesh.

NSR Axle Compatibility

The NSR 16.8mm anglewinder gear system is designed around NSR's 2.37mm axle specification, which is slightly smaller than the 2.38mm (3/32") axle size commonly used by many other slot car manufacturers.

Do not assume that a standard 2.38mm axle will be a direct fit. For an NSR build, the appropriate NSR axle should be used. Enlarging the gear bore to accommodate a different axle specification is not recommended where a correctly matched NSR component is available.

Installation

The 6529 is secured to the axle using the supplied 4-40 set screw. A suitable 1.3mm / .050" hex driver is required for installation and adjustment.

Take care not to overtighten the set screw, as excessive force can damage the threads in the lightweight aluminium gear. Correct gear alignment and mesh should be checked carefully before running the car.

What's Included

• 1 × NSR 6529 29T Extra Light Aluminium Anglewinder Gear
• 1 × NSR 4-40 axle fixing set screw

Why Buy From W.A.R. Slot Car Raceway?

W.A.R. Slot Car Raceway is Australia's specialist slot car parts store. We don't just sell slot car parts — we race, build, tune and maintain slot cars ourselves.

For serious slot racers, drivetrain components deserve the same attention as motors, tyres and chassis setup. Gear diameter, tooth count, axle specification and tooth geometry all matter when building a properly matched transmission.

The NSR 6529 gives you a precise 29T final-drive option in NSR's lightweight 16.8mm aluminium anglewinder gear system — a purpose-built component for racers who care about drivetrain performance down to the last tooth.