684ZZ Bearing 4mm Bore Miniature Ball Bearing (4x9x4mm) – High Speed & Durable

684ZZ Bearing 4mm Bore Miniature Ball Bearing (4x9x4mm) – High Speed & Durable

The 684ZZ bearing (4x9x4mm) is a miniature deep groove ball bearing with a 4mm bore, designed for high-speed applications and long service life.

• It belongs to the single row deep groove category, making it versatile, reliable, and low maintenance.
• These mini ball bearings feature deep raceway grooves and close conformity between balls and raceways, which allows them to handle radial loads as well as axial loads in both directions.
• The dual metal shields (ZZ type) provide protection from dust, small particles, and contamination while retaining pre-lubricated grease for smooth operation.
• This makes the 684ZZ shielded bearing suitable for demanding conditions.

Applications

• 684ZZ bearings are widely used in electric motors, 3D printers, RC cars, robotics, automation equipment, medical instruments, CNC machines, scooters, skateboards, power tools, and conveyor systems.
• Their high precision and durability make them ideal for industries requiring compact ball bearings with low noise and reduced friction.

684ZZ Bearing Specifications

• Item: 684ZZ Ball Bearing
• Type: Deep Groove Ball Bearing (miniature type)
• Closures: Double Metal Shields (ZZ)
• Lubrication: Pre-lubricated / Maintenance-free
• Dimensions: 4mm (ID) × 9mm (OD) × 4mm (Width)
• Dynamic Load Rating (Cr): 640 N
• Static Load Rating (Cor): 230 N
• Structure: Single row, shielded, high precision
• Material: Chrome Steel / Stainless Steel (optional in some variants)

Package Includes

• 1 × 684ZZ Miniature Deep Groove Ball Bearing (as per order).