623ZZ Ball Bearing

623ZZ Ball Bearing is a miniature, deep-groove ball bearing designed to reduce rotational friction and support both radial and moderate axial loads. Its small size and precise construction make it an ideal choice for a wide variety of applications, from small electric motors to 3D printers and model building. The “ZZ” designation indicates that the bearing has metal shields on both sides, which actively protect the inner components from dust and debris while retaining the lubricant for long-lasting, smooth operation.

Key Features:

• Double-Shielded Design: Features two non-contacting metal shields on both sides (ZZ) to protect against contaminants and prolong bearing life.
• Precision Manufacturing: Provides low friction and quiet operation, ensuring smooth performance even at high speeds.
• Compact Size: The miniature dimensions allow for integration into small-scale machinery and assemblies.
• Versatile Performance: Effectively handles radial loads and can also support moderate axial loads in both directions.
• Durable Construction: Made from high-quality chrome steel, ensuring excellent wear resistance and durability.

Technical Specifications:

• Bearing Type: Deep Groove Ball Bearing
• Shielding: ZZ (Double-Shielded)
• Material: High-Carbon Chrome Steel (GCr15)
• Precision Rating: ABEC-1 (or higher, depending on the manufacturer)
• Dynamic Load Rating: C ~500 N
• Static Load Rating: Co ~180 N

Mechanical Specifications:

• Design: Single-row
• Lubrication: Pre-greased from the factory
• Operating Temperature: -20 °C to +120 °C (with standard lubricant)
• Mounting: Designed for press-fit into a housing.

Dimensions:

• Inner Diameter (Bore): 3 mm
• Outer Diameter: 10 mm
• Width: 4 mm

Installation and Maintenance:

• Installation: Press-fit the bearing into the housing using a bearing press tool to ensure proper alignment and avoid damage. Avoid hitting the inner or outer race with a hammer.
• Maintenance: The sealed “ZZ” design typically requires no maintenance. Avoid exposing the bearing to excessive moisture or harsh chemicals.
• Usage Note: Select a bearing with an appropriate load rating and speed for your specific application to ensure optimal performance and longevity.

Datasheet Reference:

• For detailed engineering specifications, including load ratings, tolerances, and speed limits, refer to the official datasheet from a reputable bearing manufacturer like SKF, FAG, or NTN for the 623ZZ model.

Applications:

• 3D Printers: Use for extruder components and linear motion systems.
• Robotics: Integrate into small joints, gears, and drive systems.
• Model Vehicles and Drones: Provides smooth rotation for motors, wheels, and axles.
• Power Tools: Find in small rotary tools and hand drills.
• Consumer Electronics: Use in small cooling fans and other micro-mechanical assemblies.

Equivalent Models:

• 623-2RS: Same dimensions with two rubber seals for enhanced protection against water and fine particles.
• 603ZZ: A similarly sized miniature bearing with slightly different dimensions.
• MR103ZZ: Another common miniature bearing with slightly different dimensions.

Package Includes:

• 1 x 623ZZ Ball Bearing