15x21x4 Bearing

Description

Specifications

Inner Diameter (ID): 15mm

Outer Diameter (OD): 21mm

Width (W): 4mm

Product Description

The 15 x 21 x 4mm Ball Bearing is manufactured from high-quality, corrosion-resistant materials to provide smooth, reliable, and long-lasting performance. Designed to reduce rotational drag and friction, it helps improve efficiency in high-speed rotating applications.

Available with metal shields or rubber seals, these bearings prevent dust, dirt, and other contaminants from entering while keeping lubricant securely inside. This ensures extended bearing life, reduced maintenance, and consistent performance even under demanding operating conditions.

Applications

• RC Cars & Trucks: Smooth wheel, transmission, and drivetrain operation.
• Electric Motors: Reduces friction for efficient, high-speed rotation.
• Industrial Equipment: Suitable for machinery, conveyors, and automation systems.
• DIY & Robotics: Perfect for robots, CNC machines, 3D printers, and custom engineering projects.