6904-3/4” RS Bearing 19.05×37×9mm Bicycle Bottom Bracket Ball Bearing

Description

Product Overview

The 6904 3 4 RS Bearing is a high precision ball bearing engineered specifically for bicycle bottom bracket applications. Measuring 19.05×37×9mm, this compact unit fits seamlessly into standard bottom bracket shells, providing a reliable rotational interface that supports the drivetrain under a wide range of loads. Constructed from hardened steel balls and a robust outer race, the bearing delivers consistent performance even in demanding riding conditions. The design incorporates sealed shields to protect the internal components from dust, moisture, and contaminants, extending service life and reducing maintenance intervals. Manufactured by VVQQFGXN, a reputable supplier of industrial components, the bearing meets rigorous quality standards and is tested for dimensional accuracy, load capacity, and rotational smoothness. With a package dimension of 1.18 x 0.79 x 0.39 inches and a weight of 1.21 pounds, the product is easy to handle and install without additional tools. The bearing is supplied as a single piece, ready for immediate integration into bottom bracket assemblies, and does not require any additional assembly steps.

Usage

This bearing is ideal for cyclists who demand reliable performance from their drivetrain, as well as for bike repair shops that service a variety of bicycle models. It can be used in road bikes, mountain bikes, and hybrid bicycles where the bottom bracket requires a standard 19.05×37×9mm bearing size. The sealed design makes it suitable for use in wet or dusty environments, such as commuter traffic, trail riding, or coastal riding where exposure to moisture and grit is common. Installation is straightforward: the bearing slides into the bottom bracket shell, aligns with the axle, and locks into place without the need for additional fasteners. Once installed, riders experience smoother pedaling, reduced friction, and improved power transfer, which translates into a more efficient ride and less wear on adjacent components. The bearing also serves well in custom bike builds where precision and durability are paramount, providing a solid foundation for high‑performance cranksets.

Why Choose Us

Choosing the 6904 3 4 RS Bearing from VVQQFGXN means selecting a product backed by a commitment to quality and customer satisfaction. Our manufacturing process includes strict tolerance controls and multiple quality checks to ensure each bearing meets exact specifications. The use of premium steel and advanced sealing technology guarantees long‑term durability, reducing the frequency of replacements and lowering overall maintenance costs. We stand behind our products with responsive after‑sales support, offering technical assistance, warranty coverage, and easy return policies should any issues arise. Our reputation in the industrial and scientific market, highlighted by a top‑10 ranking in the bearing housings category, reflects the trust professionals place in our components. Additionally, the bearing’s compact size and lightweight construction make it an excellent choice for performance‑focused cyclists who value every gram of weight saved without compromising strength.

Key Features

• Compact 19.05×37×9mm size fits standard bicycle bottom brackets for easy integration
• Sealed steel ball design protects against dust and moisture, extending service life
• Precision‑machined races ensure smooth rotation and efficient power transfer
• Lightweight construction reduces overall bike weight while maintaining strength
• Supported by responsive customer service and a comprehensive warranty for peace of mind

FAQ

What bicycles are compatible with this bearing?

The bearing is compatible with any bicycle that uses a standard 19.05×37×9mm bottom bracket shell, including road, mountain, and hybrid bikes.

Do I need any tools to install the bearing?

Installation does not require special tools; the bearing slides directly into the bottom bracket shell and locks in place with the axle.

How does the sealed design benefit my bike?

The sealed shields keep out dust, water, and debris, which helps maintain smooth operation and prolongs the bearing’s lifespan.

What warranty does VVQQFGXN provide?

VVQQFGXN offers a one‑year limited warranty covering manufacturing defects, along with technical support for installation and maintenance questions.

Can this bearing be used in custom bike builds?

Yes, its precise dimensions and high‑quality construction make it an excellent choice for custom builds that require reliable bottom bracket performance.