60mm Plastic Spur Gear - 38T Yellow Gear

Specification	Details
Outer Diameter	60 mm
Number of Teeth	38T
Bore/Hole Diameter	~2 mm (Press-fit for standard motor shafts)
Color	Yellow
Material	High-Impact ABS Plastic
Gear Type	Spur Gear

Price

₹ 59.32

(Tax included)

Barcode: 8372535

Product Description

The 60mm Diameter Plastic Gear (38 Teeth) is a precision-molded mechanical component designed for hobbyists, students, and DIY engineers. Its large 60mm diameter and 38-tooth count make it an excellent choice for achieving high gear reduction ratios in robotics and custom machinery. The central bore is specifically sized to provide a secure "press-fit" on standard 2mm DC motor shafts, ensuring efficient power transfer without the need for additional set screws. The vibrant yellow color is not only aesthetically pleasing but also allows for easy visual tracking of rotational speed and direction during project testing and demonstrations.

Key Features

Optimal Gear Reduction: The 38-tooth count allows for significant torque multiplication when driven by a smaller pinion gear.
Standard 2mm Bore: Designed to fit tightly onto common hobby motors, preventing slippage during high-torque operations.
Durable ABS Construction: Molded from tough, low-friction plastic that resists wear and can withstand moderate mechanical stress.
Lightweight Design: Minimizes rotational inertia, allowing your motors to reach target speeds more efficiently.
Versatile Application: Ideal for belt-tensioners, crane mechanisms, conveyor systems, and school science models.

Technical Details

Modulus: ~1.5M (Approximate).
Thickness: ~4mm - 5mm.
Hub Type: Flat.

Prototyping and Engineering Tips from Robogears

The "Press-Fit" Mounting: CRITICAL: To ensure the longest life, press the gear onto the motor shaft slowly and straight. If the fit is too tight, do not use a hammer; instead, heat the motor shaft slightly with a soldering iron or hair dryer to expand the plastic gear hub for a smoother entry.
Calculating Gear Ratios: If you drive this 38-tooth gear with a 10-tooth pinion gear, you achieve a 3.8:1 reduction. This means your output speed will be 3.8 times slower, but your output torque (lifting power) will be roughly 3.8 times stronger.
Lubrication: To reduce friction and noise, apply a tiny amount of White Lithium Grease or silicone-based lubricant to the teeth. Avoid petroleum-based oils as they can degrade certain types of plastic over time.
Axle Alignment: Ensure the axles of meshing gears are perfectly parallel. If the gears are even slightly tilted, the teeth will wear unevenly and the mechanism may "jam" under load.
Stacking for More Torque: You can glue two of these gears side-by-side using a plastic-safe adhesive (like cyanoacrylate) to create a wider tooth surface for heavy-duty applications that require more contact area.

Package Includes

1 x 60mm Diameter Plastic Gear (38 Teeth) - Yellow

Disclaimer: Product images are shown for illustrative purposes only. The exact shade of yellow or the specific branding placement on the hub may vary slightly between manufacturing batches, but all technical specifications and the 60mm performance standards remain as described.

Safety Warning: Ensure the gear is securely fastened before operating at high RPM. Keep fingers and loose hair away from meshing gears to prevent injury. If used in high-heat environments (above 60°C), the plastic may soften and lose its grip on the motor shaft.