Tanstic 330pcs Metric Precision Steel Bearing Balls – 16 Sizes 1-12mm

Description

Product Overview

The Tanstic 330‑piece metric precision steel bearing ball set is engineered to meet the demanding requirements of modern machinery and hobbyist projects alike. Each ball is forged from high‑hardness carbon steel that has been heat‑treated to achieve a surface hardness that resists wear, corrosion, and deformation under load. The anti‑rust coating further protects the balls from moisture and chemical exposure, ensuring a long service life even in humid or oily environments.

With sixteen distinct diameters ranging from 1 mm to 12 mm, the collection covers the most common sizes used in a wide variety of applications. The balls are supplied in a compact, reusable storage box that separates each size into its own compartment, making inventory management simple and reducing the risk of mixing sizes during assembly. The overall dimensions of the box are 0.47 × 0.47 × 0.47 inches, and the total weight is 10.23 ounces, providing a balance between portability and durability.

Technical specifications include a tolerance of ±0.001 mm for each ball, a roundness deviation of less than 0.0005 mm, and a surface finish of Ra ≤ 0.2 µm. These tight tolerances guarantee smooth rotation and minimal vibration when the balls are installed between the inner and outer rings of a bearing assembly. The set has earned a Best Sellers Rank of #8 in the Precision Balls sub‑category, reflecting its popularity among engineers, technicians, and DIY enthusiasts.

Usage

These precision steel balls are versatile components that can be employed in a multitude of settings. In automotive repair, they serve as critical elements in wheel hubs, transmission shafts, and steering mechanisms, where reduced friction translates to smoother handling and lower wear on adjacent parts. Bicycle maintenance benefits from the same qualities, with the balls providing reliable support for headset bearings, bottom brackets, and wheel hubs, especially in high‑performance or off‑road models.

Industrial applications include use in valve assemblies, refrigeration compressors, air‑conditioning units, and heavy‑duty machinery where consistent rotational motion is essential. Photographic equipment such as camera gimbals and lens focus mechanisms also rely on these balls for precise, jitter‑free movement. Additionally, the balls are suitable for drawer slide systems, robotics, and any environment where a low‑friction, high‑strength bearing element is required.

Because the steel is anti‑rust treated, the balls can be used in humid or marine environments without rapid degradation. This makes them an excellent choice for outdoor equipment, marine pumps, and coastal installations where exposure to saltwater or condensation is common. The set’s comprehensive size range allows users to select the exact diameter needed for a specific bearing bore, eliminating the need to purchase multiple single‑size packs.

Why Choose Us

Choosing the Tanstic bearing ball set means selecting a product that combines quality, convenience, and customer support. Each ball undergoes a rigorous quality‑control process that includes dimensional inspection, hardness testing, and surface‑finish verification to ensure that every piece meets the advertised specifications. The anti‑rust coating is applied using a proprietary electro‑plating technique that provides uniform coverage and long‑term protection.

Our packaging solution not only protects the balls during shipping but also serves as a ready‑to‑use organizer for workshops and service bays. The box’s sturdy construction resists impact and can be stacked without crushing the contents, while the individual compartments keep each size clearly labeled and easily accessible.

We stand behind our product with a responsive after‑sales service team. If you encounter any issues, have questions about compatibility, or need assistance with an order, our support staff is available to provide prompt solutions. This commitment to customer satisfaction is reflected in a 4.5‑star rating from over 390 verified purchasers.

Key Features

• High‑hardness steel construction delivers exceptional durability and wear resistance.
• Anti‑rust coating protects against corrosion, extending the life of each ball.
• Sixteen precise metric sizes from 1 mm to 12 mm cover the most common bearing applications.
• Compact storage box with individual compartments simplifies inventory and speeds up assembly.
• Responsive after‑sales support ensures any concerns are addressed quickly and professionally.

FAQ

What material are the bearing balls made from?

All balls are forged from high‑hardness carbon steel and then coated with an anti‑rust layer to protect against corrosion and wear.

Can these balls be used in humid or wet environments?

Yes, the anti‑rust coating makes the balls suitable for use in humid, wet, or even marine conditions without rapid degradation.

Do the balls come pre‑lubricated?

The balls are supplied dry; you can apply the lubricant of your choice that best matches your specific application requirements.

How do I know which size I need for my bearing?

Measure the inner diameter of the bearing race where the ball will sit, then select the corresponding ball size from the 1 mm‑12 mm range provided in the set.

What is the warranty or return policy?

We offer a 30‑day money‑back guarantee and a one‑year warranty against manufacturing defects. Contact our support team for assistance.