685ZZ bearing double shielded ball bearing 685ZZ dimension of 5mmx11mmx5mm 3D printer bearing

685ZZ Bearing – Double Shielded Miniature Ball Bearing (5mm x 11mm x 5mm)

The 685ZZ bearing is a high-precision, double shielded miniature ball bearing designed for various applications requiring compact size and reliable performance.

• 685ZZ bearing 5x11x5mm is a high-precision miniature deep groove ball bearing built for compact assemblies that need smooth, stable, high-speed rotation.
• Its deep groove raceway supports radial loads and also handles axial loads effectively, making it a dependable choice for small mechanical systems and high-speed equipment.
• This double shielded 685ZZ bearing (ZZ) uses metal shields on both sides to help reduce dust and particle entry while keeping factory grease in place for consistent performance.
• Made from chrome steel (GCr15) and pre-lubricated, the 685ZZ bearing 5x11x5mm is designed for durability, low noise, and low maintenance operation

Specification

• Model: 685ZZ
• Type: Deep Groove Ball Bearing (miniature)
• Dimensions: 5mm (ID) × 11mm (OD) × 5mm (Width)
• Material: Chrome Steel (GCr15)
• Shield Type: Double Metal Shields (ZZ)
• Lubrication: Pre-lubricated with grease
• Dynamic Load Rating (Cr): 640 N
• Static Load Rating (Cor): 230 N
• Limiting Speed (Grease): 59,000 RPM

Features

• Miniature Size: Compact 5mm × 11mm × 5mm dimensions make it suitable for space-limited assemblies.
• Deep Groove Design: Supports primarily radial loads along with light axial loads in both directions.
• Double Metal Shields (ZZ): Shields on both sides help protect the bearing from dust and fine particles.
• High-Speed Capability: Designed for smooth operation at high rotational speeds under suitable operating conditions.
• Pre-Lubricated: Factory grease provides smooth operation with minimal maintenance.

Advantages

• Smooth & Low-Friction Rotation: Deep groove construction provides efficient and consistent rotational movement.
• High-Speed Capability: Suitable for fast-moving mechanisms, with speeds up to the specified 59,000 RPM under appropriate operating conditions.
• Double Metal Shield Protection: ZZ shields help protect the internal raceway from dust and fine particles.
• Long Service Life: Shields help retain grease and reduce contamination, minimizing internal wear.

Applications

• 3D printers: Print head movement, guide rails
• RC vehicles: Wheels, axles, drivetrains
• Electric motors: Small motors, appliances, power tools
• Skateboards & rollerblades: Wheel assemblies
• Robotics: Joints, actuators
• Instrumentation: Gauges, measuring devices, lab equipment
• Model making & small machinery: Mini mechanisms and hobby builds

Package Includes

• 1 piece of 685ZZ bearing